Document:

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                                                                 EXHIBIT 10.15.1
                          NATUS MEDICAL INCORPORATED

                      2000 SUPPLEMENTAL STOCK OPTION PLAN

                         NOTICE OF STOCK OPTION GRANT

Name
______________________________
______________________________

     You have been granted an option to purchase Common Stock of Natus Medical
Incorporated (the "Company") under the terms of the Natus Medical Incorporated
2000 Supplemental Stock Option Plan as follows:

     Grant Number:                             _______________________________
     Date of Grant:
     Option Price Per Share:                   $
     Total Number of Shares Granted:           Total_ Shares_Granted
     Total Price of Shares Granted:            $ Total_Price
     Type of Option:                              X    Incentive Stock Option
                                               _______
                                               _______ Nonstatutory Stock Option
     Term/Expiration Date:
     Vesting Schedule:                         This Option shall be exercisable
                                               cumulatively, to the extent of
                                               1/48th of the Total Number of
                                               Shares Granted for each month of
                                               your Continuous Status as an
                                               Employee or Consultant which has
                                               expired after
                                               Vesting_Start_Date (the vesting
                                               commencement date) provided
                                               however, that this Option shall
                                               not be exercisable prior to six
                                               months from the vesting
                                               commencement date.
Termination Period:                            Option may be exercised for 30
                                               days after termination of
                                               employment or consulting
                                               relationship (but in no event
                                               later than the Expiration Date).

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     By your signature and the signature of the Company's representative below,
you and the Company agree that this option is granted under and governed by the
terms and conditions of the 2000 Supplemental Stock Option Plan and the Stock
Option Agreement, all of which are attached and made a part of this document.

OPTIONEE:                                  NATUS MEDICAL INCORPORATED

________________________                   ____________________________
Signature                                  By:  Tim C. Johnson
                                                President and Chief Executive
                                                Officer
Name
________________________
Print Name

                                      -2-
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                          NATUS MEDICAL INCORPORATED

                            STOCK OPTION AGREEMENT

     1.   Grant of Option. The Plan Administrator of Natus Medical
          ---------------
Incorporateed, a Delaware corporation (the "Company"), hereby grants to the
Optionee named in the Notice of Grant (the "Optionee"), an option (the "Option")
to purchase a total number of shares of Common Stock (the "Shares") set forth in
the Notice of Grant, at the exercise price per share set forth in the Notice of
Grant (the "Exercise Price") subject to the terms, definitions and provisions of
the Natus Medical Incorporated 2000 Supplemental Stock Option Plan (the "Plan")
adopted by the Company, which is incorporated herein by reference. Unless
otherwise defined herein, the terms defined in the Plan shall have the same
defined meanings in this Option.

          If designated an Incentive Stock Option, this Option is intended to
qualify as an Incentive Stock Option as defined in Section 422A of the Code.

     2.   Exercise of Option. This Option shall be exercisable during its term
          ------------------
in accordance with the Vesting Schedule set out in the Notice of Grant and with
the provisions of Section 9 of the Plan as follows:

          (i)  Right to Exercise.

               (a)  This Option may not be exercised for a fraction of a share.

               (b)  In the event of Optionee's death, disability or other
termination of employment, the exercisability of the Option is governed by
Sections 7, 8 and 9 below, subject to the limitation contained in subsection
2(i)(c).

               (c)  In no event may this Option be exercised after the date of
expiration of the term of this Option as set forth in the Notice of Grant.

          (ii) Method of Exercise. This Option shall be exercisable by written
               ------------------
notice (in the form attached as Exhibit A) which shall state the election to
exercise the Option, the number of Shares in respect of which the Option is
being exercised, and such other representations and agreements as to the
holder's investment intent with respect to such shares of Common Stock as may be
required by the Company pursuant to the provisions of the Plan. Such written
notice shall be signed by the Optionee and shall be delivered in person or by
certified mail to the Secretary of the Company. The written notice shall be
accompanied by payment of the exercise price. This Option shall be deemed to be
exercised upon receipt by the Company of such written notice accompanied by the
Exercise Price.

          No Shares will be issued pursuant to the exercise of an Option unless
such issuance and such exercise shall comply with all relevant provisions of law
and the requirements of any stock exchange upon which the Shares may then be
listed. Assuming such compliance, for income tax purposes the Shares shall be
considered transferred to the Optionee on the date on which the Option is
exercised with respect to such Shares.

                                      -3-
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     3.   Optionee's Representations. In the event the Shares purchasable
          --------------------------
pursuant to the exercise of this Option have not been registered under the
Securities Act of 1933, as amended, at the time this Option is exercised,
Optionee shall, if required by the Company, concurrently with the exercise of
all or any portion of this Option, deliver to the Company his Investment
Representation Statement in the form attached hereto as Exhibit B, and shall
read the applicable rules of the Commissioner of Corporations attached to such
Investment Representation Statement.

     4.   Method of Payment. Payment of the Exercise Price shall be by any of
          -----------------
the following, or a combination thereof, at the election of the Optionee:

          (i)   cash; or

          (ii)  check; or

          (iii) surrender of other shares of Common Stock of the Company which
(A) either have been owned by the Optionee for more than six (6) months on the
date of surrender or were not acquired, directly or indirectly, from the Company
and (B) have a fair market value on the date of surrender equal to the Exercise
Price of the Shares as to which the Option is being exercised.

     5.   Restrictions on Exercise. This Option may not be exercised until such
          ------------------------
time as the Plan has been approved by the shareholders of the Company, or if the
issuance of such Shares upon such exercise or the method of payment of
consideration for such shares would constitute a violation of any applicable
federal or state securities or other law or regulation, including any rule under
Part 207 of Title 12 of the Code of Federal Regulations ("Regulation G") as
promulgated by the Federal Reserve Board. As a condition to the exercise of this
Option, the Company may require Optionee to make any representation and warranty
to the Company as may be required by any applicable law or regulation.

     6.   Section 16 Restrictions. Options granted to persons who are subject to
          -----------------------
Section 16 of the Exchange Act ("Insiders") may not be exercised for a period of
at least six months from the date of grant, except in the case of death or
disability.

     7.   Termination of Relationship. In the event Optionee's Continuous Status
          ---------------------------
as an Employee or Consultant terminates, Optionee may, to the extent otherwise
so entitled at the date of such termination (the "Termination Date"), exercise
this Option during the Termination Period set out in the Notice of Grant. To the
extent that Optionee was not entitled to exercise this Option at the date of
such termination, or if Optionee does not exercise this Option within the time
specified herein, the Option shall terminate.

      8.  Disability of Optionee. Notwithstanding the provisions of Section 7
          ----------------------
above, in the event Optionee's Continuous Status as an Employee or Consultant
terminates as a result of total and permanent disability (as defined in Section
22(e)(3) of the Code), Optionee may, but only within six (6) months from the
date of termination of employment or consultancy (but in no event later than the
date of expiration of the term of this Option as set forth in Section 11 below),
exercise the Option to the extent otherwise so entitled at the date of such
termination. To the extent that Optionee was not entitled to exercise the Option
at the date of termination, or if Optionee does not exercise such Option (to the
extent otherwise so entitled) within the time specified herein, the Option
shall terminate.

                                      -4-
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     9. Death of Optionee. The Option may be exercised at any time within
        -----------------
six (6) months after the Optionee's death (but in no event later than the date
of expiration of the term of this Option as set forth in Section 11 below), by
Optionee's estate or by a person who acquired the right to exercise the Option
by bequest or inheritance, but only to the extent the Optionee could exercise
the Option at the date of death.

     10.  Non-Transferability of Option. This Option may not be transferred or
          -----------------------------
assigned in any manner otherwise than by will or by the laws of descent or
distribution and may be exercised during the lifetime of Optionee only by him.
The terms of this Option shall be binding upon the executors, administrators,
heirs, successors and assigns of the Optionee.

     11.  Term of Option. This Option may be exercised only within the term set
          --------------
out in the Notice of Grant, and may be exercised during such term only in
accordance with the Plan and the terms of this Option.

     12.  Tax Consequences. Set forth below is a brief summary as of the date of
          ----------------
this Option of some of the federal tax consequences of exercise of this Option
and disposition of the Shares. THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE
TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE. OPTIONEE SHOULD CONSULT A TAX
ADVISER BEFORE EXERCISING THIS OPTION OR DISPOSING OF THE SHARES.

          (i)   Exercise of ISO. If this Option qualifies as an ISO, there will
                ---------------
be no regular federal income tax liability upon the exercise of the Option,
although the excess, if any, of the fair market value of the Shares on the date
of exercise over the Exercise Price will be treated as an adjustment to the
alternative minimum tax for federal tax purposes and may subject the Optionee to
the alternative minimum tax.

          (ii)  Exercise of Nonqualified Stock Option. If this Option does not
                -------------------------------------
qualify as an ISO, there may be a regular federal income tax liability upon the
exercise of the Option. The Optionee will be treated as having received
compensation income (taxable at ordinary income tax rates) equal to the excess,
if any, of the fair market value of the Shares on the date of exercise over the
Exercise Price. If Optionee is an employee, the Company will be required to
withhold from Optionee's compensation or collect from Optionee and pay to the
applicable taxing authorities an amount equal to a percentage of this
compensation income at the time of exercise.

          (iii) Disposition of Shares. In the case of an NSO, if Shares are held
                ---------------------
for at least one year, any gain realized on disposition of the Shares will be
treated as long-term capital gain for federal income tax purposes. In the case
of an ISO, if Shares transferred pursuant to the Option are held for at least
one year after exercise and are disposed of at least two years after the Date of
Grant, any gain realized on disposition of the Shares will also be treated as
long-term capital gain for federal income tax purposes. If Shares purchased
under an ISO are disposed of within such one-year period or within two years
after the Date of Grant, any gain realized on such disposition will be treated
as compensation income (taxable at ordinary income rates) to the extent of the
excess, if any, of the fair market value of the Shares on the date of exercise
over the Exercise Price.

          (iv)  Notice of Disqualifying Disposition of ISO Shares. If the Option
                -------------------------------------------------
granted to Optionee herein is an ISO, and if Optionee sells or otherwise
disposes of any of the Shares acquired

                                      -5-
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pursuant to the ISO on or before the later of (1) the date two years after the
Date of Grant, or (2) the date one year after transfer of such Shares to the
Optionee upon exercise of the ISO, the Optionee shall immediately notify the
Company in writing of such disposition. Optionee agrees that Optionee may be
subject to income tax withholding by the Company on the compensation income
recognized by the Optionee from the early disposition by payment in cash or out
of the current earnings paid to the Optionee.

                          NATUS MEDICAL INCORPORATED
                          a Delaware corporation

                          By: _______________________________________
                                Tim C. Johnson
                                President and Chief Executive Officer

     OPTIONEE ACKNOWLEDGES AND AGREES THAT THE VESTING OF SHARES PURSUANT TO THE
OPTION HEREOF IS EARNED ONLY BY CONTINUING CONSULTANCY OR EMPLOYMENT AT THE WILL
OF THE COMPANY (NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS OPTION OR
ACQUIRING SHARES HEREUNDER).  OPTIONEE FURTHER ACKNOWLEDGES AND AGREES THAT
NOTHING IN THIS OPTION, NOR IN THE COMPANY'S 2000 SUPPLEMENTAL STOCK OPTION PLAN
WHICH IS INCORPORATED HEREIN BY REFERENCE, SHALL CONFER UPON OPTIONEE ANY RIGHT
WITH RESPECT TO CONTINUATION OF EMPLOYMENT OR CONSULTANCY BY THE COMPANY, NOR
SHALL IT INTERFERE IN ANY WAY WITH HIS RIGHT OR THE COMPANY'S RIGHT TO TERMINATE
HIS EMPLOYMENT OR CONSULTANCY AT ANY TIME, WITH OR WITHOUT CAUSE.

     Optionee acknowledges receipt of a copy of the Plan and certain information
related thereto and represents that he is familiar with the terms and provisions
thereof, and hereby accepts this Option subject to all of the terms and
provisions of the Plan.  Optionee has reviewed the Plan and this Option in their
entirety, has had an opportunity to obtain the advice of counsel prior to
executing this Option and fully understands all provisions relating to this
Option.  Optionee hereby agrees to accept as binding, conclusive and final all
decisions or interpretations of the Board upon any questions arising under the
Plan or this Option.

Dated: ______________________________             _____________________________
                                                   Optionee

                                      -6-
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                                   EXHIBIT A
                                   ---------

                                EXERCISE NOTICE

Natus Medical Incorporated
1501 Industrial Road
San Carlos, CA 94070

Attention:  Secretary

     1.   Exercise of Option. Effective as of today, __________________, ______,
          ------------------
the undersigned ("Optionee") hereby elects to exercise Optionee's option to
purchase ____________ shares of the Common Stock (the "Shares") of Natus Medical
Incorporated (the "Company") under and pursuant to the Company's 2000
Supplemental Stock Option Plan, as amended (the "Plan") and the [ ] Incentive [
] Nonqualified Stock Option Agreement dated _________________, ______ (the
"Option Agreement").

     2.   Representations of Optionee.  Optionee acknowledges that Optionee has
          ---------------------------
received, read and understood the Plan and the Option Agreement and agrees to
abide by and be bound by their terms and conditions.  Optionee represents that
Optionee is purchasing the Shares for Optionee's own account for investment and
not with a view to, or for sale in connection with, a distribution of any of
such Shares.

     3.   Compliance with Securities Laws. Optionee understands and acknowledges
          -------------------------------
that the Shares have not been registered under the Securities Act of 1933, as
amended (the "1933 Act"), and, notwithstanding any other provision of the Option
Agreement to the contrary, the exercise of any rights to purchase any Shares is
expressly conditioned upon compliance with the 1933 Act, all applicable state
securities laws and all applicable requirements of any stock exchange or over
the counter market on which the Company's Common Stock may be listed or traded
at the time of exercise and transfer. Optionee agrees to cooperate with the
Company to ensure compliance with such laws.

     4.   Federal Restrictions on Transfer. Optionee understands that the Shares
          --------------------------------
have not been registered under the 1933 Act and therefore cannot be resold and
must be held indefinitely unless they are registered under the 1933 Act or
unless an exemption from such registration is available and that the
certificate(s) representing the Shares may bear a legend to that effect.
Optionee understands that the Company is under no obligation to register the
Shares and that an exemption may not be available or may not permit Optionee to
transfer Shares in the amounts or at the times proposed by Optionee.
Specifically, Optionee has been advised that Rule 144 promulgated under the 1933
Act, which permits certain resales of unregistered securities, is not presently
available with respect to the Shares and, in any event requires that the Shares
be paid for and then be held for at least two years (and in some cases three
years) before they may be resold under Rule 144.

     5.   Rights as Shareholder.  Subject to the terms and conditions of this
          ---------------------
Agreement, Optionee shall have all of the rights of a shareholder of the Company
with respect to the Shares from

                                      -7-
<PAGE>

and after the date that Optionee delivers full payment of the Exercise Price
until such time as Optionee disposes of the Shares or the Company and/or its
assignee(s) exercises the Right of First Refusal hereunder. Upon such exercise,
Optionee shall have no further rights as a holder of the Shares so purchased
except the right to receive payment for the Shares so purchased in accordance
with the provisions of this Agreement, and Optionee shall forthwith cause the
certificate(s) evidencing the Shares so purchased to be surrendered to the
Company for transfer or cancellation.

     6.   Company's Right of First Refusal. Before any Shares held by Optionee
          --------------------------------
or any transferee (either being sometimes referred to herein as the "Holder")
may be sold or otherwise transferred (including transfer by gift or operation of
law), the Company or its assignee(s) shall have a right of first refusal to
purchase the Shares on the terms and conditions set forth in this Section (the
"Right of First Refusal").

          (a)  Notice of Proposed Transfer. The Holder of the Shares shall
               ---------------------------
deliver to the Company a written notice (the "Notice") stating: (i) the Holder's
bona fide intention to sell or otherwise transfer such Shares; (ii) the name of
each proposed purchaser or other transferee ("Proposed Transferee"); (iii) the
number of Shares to be transferred to each Proposed Transferee; and (iv) the
bona fide cash price or other consideration for which the Holder proposes to
transfer the Shares (the "Offered Price"), and the Holder shall offer the Shares
at the Offered Price to the Company or its assignee(s).

          (b)  Exercise of Right of First Refusal. At any time within thirty
               ----------------------------------
(30) days after receipt of the Notice, the Company and/or its assignee(s) may,
by giving written notice to the Holder, elect to purchase all, but not less than
all, of the Shares proposed to be transferred to any one or more of the Proposed
Transferees, at the purchase price determined in accordance with subsection (c)
below.

          (c)  Purchase Price. The purchase price ("Purchase Price") for the
               --------------
Shares purchased by the Company or its assignee(s) under this Section shall be
the Offered Price. If the Offered Price includes consideration other than cash,
the cash equivalent value of the non-cash consideration shall be determined by
the Board of Directors of the Company in good faith.

          (d)  Payment. Payment of the Purchase Price shall be made, at the
               -------
option of the Company or its assignee(s), in cash (by check), by cancellation of
all or a portion of any outstanding indebtedness of the Holder to the Company
(or, in the case of repurchase by an assignee, to the assignee), or by any
combination thereof within 30 days after receipt of the Notice or in the manner
and at the times set forth in the Notice.

          (e)  Holder's Right to Transfer. If all of the Shares proposed in the
               --------------------------
Notice to be transferred to a given Proposed Transferee are not purchased by the
Company and/or its assignee(s) as provided in this Section, then the Holder may
sell or otherwise transfer such Shares to that Proposed Transferee at the
Offered Price or at a higher price, provided that such sale or other transfer is
consummated within 120 days after the date of the Notice and provided further
that any such sale or other transfer is effected in accordance with any
applicable securities laws and the Proposed Transferee agrees in writing that
the provisions of this Section shall continue to apply to the Shares in the
hands of such Proposed Transferee. If the Shares described in the Notice are not

                                      -8-
<PAGE>

transferred to the Proposed Transferee within such period, a new Notice shall be
given to the Company, and the Company and/or its assignees shall again be
offered the Right of First Refusal before any Shares held by the Holder may be
sold or otherwise transferred.

          (f)  Exception for Certain Family Transfers. Anything to the contrary
               --------------------------------------
contained in this Section notwithstanding, the transfer of any or all of the
Shares during the Optionee's lifetime or on the Optionee's death by will or
intestacy to the Optionee's immediate family or a trust for the benefit of the
Optionee's immediate family shall be exempt from the provisions of this Section.
"Immediate Family" as used herein shall mean spouse, lineal descendant or
antecedent, father, mother, brother or sister. In such case, the transferee or
other recipient shall receive and hold the Shares so transferred subject to the
provisions of this Section, and there shall be no further transfer of such
Shares except in accordance with the terms of this Section.

          (g)  Termination of Right of First Refusal. The Right of First Refusal
               -------------------------------------
shall terminate as to any Shares 90 days after the first sale of Common Stock of
the Company to the general public pursuant to a registration statement filed
with and declared effective by the Securities and Exchange Commission under the
1933 Act.

     7.   Tax Consultation. Optionee understands that Optionee may suffer
          ----------------
adverse tax consequences as a result of Optionee's purchase or disposition of
the Shares. Optionee represents that Optionee has consulted with any tax
consultants Optionee deems advisable in connection with the purchase or
disposition of the Shares and that Optionee is not relying on the Company for
any tax advice.

     8.   Restrictive Legends and Stop-Transfer Orders.
          --------------------------------------------
          (a)  Legends. Optionee understands and agrees that the Company shall
               -------
cause the legends set forth below or legends substantially equivalent thereto,
to be placed upon any certificate(s) evidencing ownership of the Shares together
with any other legends that may be required by state or federal securities laws:

          THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE
          SECURITIES ACT OF 1933 (THE "ACT") AND MAY NOT BE OFFERED, SOLD OR
          OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL
          REGISTERED UNDER THE ACT OR, IN THE OPINION OF COUNSEL IN FORM AND
          SUBSTANCE SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER,
          SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE THEREWITH.

          THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN
          RESTRICTIONS ON TRANSFER AND RIGHT OF FIRST REFUSAL OPTIONS HELD BY
          THE ISSUER OR ITS ASSIGNEE(S) AS SET FORTH IN THE EXERCISE NOTICE
          BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF
          WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER.

                                      -9-
<PAGE>

          SUCH TRANSFER RESTRICTIONS AND RIGHT OF FIRST REFUSAL ARE BINDING ON
          TRANSFEEES OF THESE SHARES.

          IT IS UNLAWFUL TO CONSUMMATE A SALE OR TRANSFER OF THIS SECURITY, OR
          ANY INTEREST THEREIN, OR TO RECEIVE ANY CONSIDERATION THEREFOR,
          WITHOUT THE PRIOR WRITTEN CONSENT OF THE COMMISSIONER OF CORPORATIONS
          OF THE STATE OF CALIFORNIA, EXCEPT AS PERMITTED IN THE COMMISSIONER'S
          RULES.

          (b)  Stop-Transfer Notices. Optionee agrees that, in order to ensure
               ---------------------
compliance with the restrictions referred to herein, the Company may issue
appropriate "stop transfer" instructions to its transfer agent, if any, and
that, if the Company transfers its own securities, it may make appropriate
notations to the same effect in its own records.

          (c)  Refusal to Transfer. The Company shall not be required (i) to
               -------------------
transfer on its books any Shares that have been sold or otherwise transferred in
violation of any of the provisions of this Agreement or (ii) to treat as owner
of such Shares or to accord the right to vote or pay dividends to any purchaser
or other transferee to whom such Shares shall have been so transferred

     9.   Market Standoff Agreement. Optionee hereby agrees that if so requested
          -------------------------
by the Company or any representative of the underwriters in connection with any
registration of the offering of any securities of the Company under the 1933
Act, Optionee shall not sell or otherwise transfer any Shares or other
securities of the Company during the 180-day period following the effective date
of a registration statement of the Company filed under the 1933 Act; provided,
however, that such restriction shall only apply to the first two registration
statements of the Company to become effective under the 1933 Act which include
securities to be sold on behalf of the Company to the public in an underwritten
public offering under the 1933 Act. The Company may impose stop-transfer
instructions with respect to securities subject to the foregoing restrictions
until the end of such 180-day period.

     10.   Successors and Assigns. The Company may assign any of its rights
           ----------------------
under this Agreement to single or multiple assignees, and this Agreement shall
inure to the benefit of the successors and assigns of the Company. Subject to
the restrictions on transfer herein set forth, this Agreement shall be binding
upon Optionee and his or her heirs, executors, administrators, successors and
assigns.

     11.  Interpretation. Any dispute regarding the interpretation of this
          --------------
Agreement shall be submitted by Optionee or by the Company forthwith to the
Company's Board of Directors or the committee thereof that administers the Plan,
which shall review such dispute at its next regular meeting. The resolution of
such a dispute by the Board or committee shall be final and binding on the
Company and on Optionee.

     12.  Governing Law; Severability. This Agreement shall be governed by and
          ---------------------------
construed in accordance with the laws of the State of California excluding that
body of law pertaining to conflicts

                                      -10-
<PAGE>

of law. Should any provision of this Agreement be determined by a court of law
to be illegal or unenforceable, the other provisions shall nevertheless remain
effective and shall remain enforceable.

    13.   Notices.  Any notice required or permitted hereunder shall be given in
          -------
writing and shall be deemed effectively given upon personal delivery or upon
deposit in the United States mail by certified mail, with postage and fees
prepaid, addressed to the other party at its address as shown below beneath its
signature, or to such other address as such party may designate in writing from
time to time to the other party.

     14.  Further Instruments. The parties agree to execute such further
          -------------------
instruments and to take such further action as may be reasonably necessary to
carry out the purposes and intent of this Agreement.

     15.  Delivery of Payment. Optionee herewith delivers to the Company the
          -------------------
full Exercise Price for the Shares.

     16.  Entire Agreement.  The Plan and Notice of Grant/Option Agreement are
          ----------------
incorporated herein by reference.  This Agreement, the Plan and the Notice of
Grant/Option Agreement constitute the entire agreement of the parties and
supersede in their entirety all prior undertakings and agreements of the Company
and Optionee with respect to the subject matter hereof, and is governed by
California law except for that body of law pertaining to conflict of laws.

Submitted by:                                        Accepted by:

OPTIONEE:                                            NATUS MEDICAL INCORPORATED

 _________________________________                   By: _______________________
                (Signature)
                                                     Its:_______________________

 __________________________________
               (Print Name)

Address:                                             Address:
-------                                              -------

___________________________________                  1501 Industrial Road
___________________________________                  San Carlos, CA  94070

                                      -11-
<PAGE>

                                   EXHIBIT B
                                   ---------
                      INVESTMENT REPRESENTATION STATEMENT

OPTIONEE              :  _____________________________

COMPANY               :  NATUS MEDICAL INCORPORATED

SECURITY              :  COMMON STOCK

AMOUNT                :  ______________________________

DATE                  :  ______________________________

     In connection with the purchase of the above-listed Securities, the
undersigned Optionee represents to the Company the following:

          (a)  Optionee is aware of the Company's business affairs and financial
condition and has acquired sufficient information about the Company to reach an
informed and knowledgeable decision to acquire the securities.  Optionee is
acquiring these securities for investment for Optionee's own account only and
not with a view to, or for resale in connection with, any "distribution" thereof
within the meaning of the Securities Act of 1933, as amended (the "Securities
Act").

          (b)  Optionee acknowledges and understands that the securities
constitute "restricted securities" under the Securities Act and have not been
registered under the Securities Act in reliance upon a specific exemption
therefrom, which exemption depends upon, among other things, the bona fide
nature of Optionee's investment intent as expressed herein. In this connection,
Optionee understands that, in the view of the Securities and Exchange
Commission, the statutory basis for such exemption may be unavailable if
Optionee's representation was predicated solely upon a present intention to hold
these Securities for the minimum capital gains period specified under tax
statutes, for a deferred sale, for or until an increase or decrease in the
market price of the Securities, or for a period of one year or any other fixed
period in the future. Optionee further understands that the Securities must be
held indefinitely unless they are subsequently registered under the Securities
Act or an exemption from such registration is available. Optionee further
acknowledges and understands that the Company is under no obligation to register
the securities. Optionee understands that the certificate evidencing the
securities will be imprinted with a legend which prohibits the transfer of the
Securities unless they are registered or such registration is not required in
the opinion of counsel satisfactory to the Company, a legend prohibiting their
transfer without the consent of the Commissioner of Corporations of the State of
California and any other legend required under applicable state securities laws.

          (c)  Optionee is familiar with the provisions of Rule 144, promulgated
under the Securities Act, which, in substance, permit limited public resale of
"restricted securities" acquired, directly or indirectly from the issuer
thereof, in a non-public offering subject to the satisfaction of certain
conditions. In the event that the Company does not qualify under Rule 701 at the
time of exercise of the Option, then

          The securities may be resold in certain limited circumstances subject
to the provisions of Rule 144, which requires among other things:  (1) the
resale occurring not less than one year after

                                      -12-
<PAGE>

the party has purchased, and made full payment for, within the meaning of Rule
144, the securities to be sold; and, in the case of an affiliate, or of a non-
affiliate who has held the securities less than two years, (2) the availability
of certain public information about the Company, (3) the sale being made through
a broker in an unsolicited "broker's transaction" or in transactions directly
with a market maker (as said term is defined under the Securities Exchange Act
of 1934), and (4) the amount of securities being sold during any three month
period not exceeding the specified limitations stated therein, if applicable.

          (d)  Optionee agrees, in connection with the Company's initial
underwritten public offering of the Company's securities, (1) not to sell, make
short sale of, loan, grant any options for the purchase of, or otherwise dispose
of any shares of Common Stock of the Company held by Optionee (other than those
shares included in the registration) without the prior written consent of the
Company or the underwriters managing such initial underwritten public offering
of the Company's securities for one hundred eighty (180) days from the effective
date of such registration, and (2) further agrees to execute any agreement
reflecting (1) above as may be requested by the underwriters at the time of the
public offering; provided however that the officers and directors of the Company
                 -------- -------
who own the stock of the Company also agree to such restrictions.

          (e)  Optionee further understands that in the event all of the
applicable requirements of Rule 144 are not satisfied, registration under the
Securities Act, compliance with Regulation A, or some other registration
exemption will be required; and that, notwithstanding the fact that Rule 144 is
not exclusive, the Staff of the Securities and Exchange Commission has expressed
its opinion that persons proposing to sell private placement securities other
than in a registered offering and otherwise than pursuant to Rule 144 will have
a substantial burden of proof in establishing that an exemption from
registration is available for such offers or sales, and that such persons and
their respective brokers who participate in such transactions do so at their own
risk. Optionee understands that no assurances can be given that any such other
registration exemption will be available in such event.

                            Signature of Optionee:

                            _________________________________________

                            Date: ___________________, _________

                                      -13-<PAGE>

                                 EXHIBIT 10.13

                       PERICOM SEMICONDUCTOR CORPORATION

                       2000 EMPLOYEE STOCK PURCHASE PLAN
                       ---------------------------------

          The following constitute the provisions of the 2000 Employee Stock
Purchase Plan of Pericom Semiconductor Corporation.

          1.   Purpose.  The purpose of the Plan is to provide employees of the
               -------
Company and its Designated Parents or Subsidiaries with an opportunity to
purchase Common Stock of the Company through accumulated payroll deductions.  It
is the intention of the Company to have the Plan qualify as an "Employee Stock
Purchase Plan" under Section 423 of the Code.  The provisions of the Plan,
accordingly, shall be construed so as to extend and limit participation in a
manner consistent with the requirements of that section of the Code.

          2.   Definitions.  As used herein, the following definitions shall
               -----------
apply:

          (a)  "Administrator" means either the Board or a committee of the
                -------------
Board that is responsible for the administration of the Plan as is designated
from time to time by resolution of the Board.

          (b)  "Applicable Laws" means the legal requirements relating to the
                ---------------
administration of employee stock purchase plans, if any, under applicable
provisions of federal securities laws, state corporate and securities laws, the
Code, the rules of any applicable stock exchange or national market system, and
the rules of any foreign jurisdiction applicable to participation in the Plan by
residents therein.

          (c)  "Board" means the Board of Directors of the Company.
                -----

          (d)  "Change in Control" means a change in ownership or control of the
                -----------------
Company effected through the direct or indirect acquisition by any person or
related group of persons (other than an acquisition from or by the Company or by
a Company-sponsored employee benefit plan or by a person that directly or
indirectly controls, is controlled by, or is under common control with, the
Company) of beneficial ownership (within the meaning of Rule 13d-3 of the
Exchange Act) of securities possessing more than fifty percent (50%) of the
total combined voting power of the Company's outstanding securities.

          (e)  "Code" means the Internal Revenue Code of 1986, as amended.
                ----

          (f)  "Common Stock" means the common stock of the Company.
                ------------

          (g)  "Company" means Pericom Semiconductor Corporation, a California
                -------
corporation.

                                       1
<PAGE>

          (h)  "Compensation" means an Employee's base salary from the Company
                ------------
or one or more Designated Parents or Subsidiaries, including such amounts of
base salary as are deferred by the Employee (i) under a qualified cash or
deferred arrangement described in Section 401(k) of the Code, or (ii) to a plan
qualified under Section 125 of the Code. Compensation does not include overtime,
bonuses, annual awards, other incentive payments, reimbursements or other
expense allowances, fringe benefits (cash or noncash), moving expenses, deferred
compensation, contributions (other than contributions described in the first
sentence) made on the Employee's behalf by the Company or one or more Designated
Parents or Subsidiaries under any employee benefit or welfare plan now or
hereafter established, and any other payments not specifically referenced in the
first sentence.

          (i)  "Corporate Transaction" means any of the following transactions:
                ---------------------

               (1) a merger or consolidation in which the Company is not the
          surviving entity, except for a transaction the principal purpose of
          which is to change the state in which the Company is incorporated;

               (2) the sale, transfer or other disposition of all or
          substantially all of the assets of the Company (including the capital
          stock of the Company's subsidiary corporations) in connection with
          complete liquidation or dissolution of the Company;

               (3) any reverse merger in which the Company is the surviving
          entity but in which securities possessing more than fifty percent
          (50%) of the total combined voting power of the Company's outstanding
          securities are transferred to a person or persons different from those
          who held such securities immediately prior to such merger; or

               (4) acquisition by any person or related group of persons (other
          than the Company or by a Company-sponsored employee benefit plan) of
          beneficial ownership (within the meaning of Rule 13d-3 of the Exchange
          Act) of securities possessing more than fifty percent (50%) of the
          total combined voting power of the Company's outstanding securities
          (whether or not in a transaction also constituting a Change in
          Control), but excluding any such transaction that the Administrator
          determines shall not be a Corporate Transaction

          (j)  "Designated Parents or Subsidiaries" means the Parents or
                ----------------------------------
Subsidiaries which have been designated by the Administrator from time to time
as eligible to participate in the Plan.

          (k)  "Effective Date" means November 1, 2000.  However, should any
                --------------
Designated Parent or Subsidiary become a participating company in the Plan after
such date, then such entity shall designate a separate Effective Date with
respect to its employee-participants.

          (l)  "Employee" means any individual, including an officer or
                --------
director, who is an employee of the Company or a Designated Parent or Subsidiary
for purposes of Section 423 of

                                       2
<PAGE>

the Code. For purposes of the Plan, the employment relationship shall be treated
as continuing intact while the individual is on sick leave or other leave of
absence approved by the individual's employer. Where the period of leave exceeds
ninety (90) days and the individual's right to reemployment is not guaranteed
either by statute or by contract, the employment relationship will be deemed to
have terminated on the ninety-first (91st) day of such leave, for purposes of
determining eligibility to participate in the Plan.

          (m)  "Enrollment Date" means the first day of each Offer Period.
                ---------------

          (n)  "Exchange Act" means the Securities Exchange Act of 1934, as
                ------------
amended.

          (o)  "Exercise Date" means the last day of each Purchase Period.
                -------------

          (p)  "Fair Market Value" means, as of any date, the value of Common
                -----------------
Stock determined as follows:

               (1) Where there exists a public market for the Common Stock, the
          Fair Market Value shall be (A) the closing price for a share of Common
          Stock for the last market trading day prior to the time of the
          determination (or, if no closing price was reported on that date, on
          the last trading date on which a closing price was reported) on the
          stock exchange determined by the Administrator to be the primary
          market for the Common Stock or the Nasdaq National Market, whichever
          is applicable or (B) if the Common Stock is not traded on any such
          exchange or national market system, the average of the closing bid and
          asked prices of a share of Common Stock on the Nasdaq Small Cap Market
          for the day prior to the time of the determination (or, if no such
          prices were reported on that date, on the last date on which such
          prices were reported), in each case, as reported in The Wall Street
          Journal or such other source as the Administrator deems reliable; or

               (2) In the absence of an established market of the type described
          in (1), above, for the Common Stock, the Fair Market Value thereof
          shall be determined by the Administrator in good faith.

          (q)  "Offer Period" means an Offer Period established pursuant to
                ------------
Section 4 hereof.

          (r)  "Parent" means a "parent corporation," whether now or hereafter
                ------
existing, as defined in Section 424(e) of the Code.

          (s)  "Participant" means an Employee of the Company or Designated
                -----------
Parent or Subsidiary who is actively participating in the Plan.

          (t)  "Plan" means this Employee Stock Purchase Plan.
                ----

          (u)  "Purchase Period" means a period of approximately three months,
                ---------------
commencing on November 1, February 1, May 1 and August 1 of each year and
terminating on the next  following January 31, April 30, July 31 or October 31,
respectively.

                                       3
<PAGE>

          (v)  "Purchase Price" shall  mean an amount equal to 85% of the Fair
                --------------
Market Value of a share of Common Stock on the Enrollment Date or on the
Exercise Date, whichever is lower.

          (w)  "Reserves" means the sum of the number of shares of Common Stock
                --------
covered by each option under the Plan which have not yet been exercised and the
number of shares of Common Stock which have been authorized for issuance under
the Plan but not yet placed under option.

          (x)  "Subsidiary" means a "subsidiary corporation," whether now or
                ----------
hereafter existing, as defined in Section 424(f) of the Code.

          3.   Eligibility.
               -----------

          (a)  General.  Any individual who is an Employee on a given Enrollment
               -------
Date shall be eligible to participate in the Plan for the Offer Period
commencing with such Enrollment Date.

          (b)  Limitations on Grant and Accrual.  Any provisions of the Plan to
               --------------------------------
the contrary notwithstanding, no Employee shall be granted an option under the
Plan (i) if, immediately after the grant, such Employee (taking into account
stock owned by any other person whose stock would be attributed to such Employee
pursuant to Section 424(d) of the Code) would own stock and/or hold outstanding
options to purchase stock possessing five percent (5%) or more of the total
combined voting power or value of all classes of stock of the Company or of any
Parent or Subsidiary, or (ii) which permits the Employee's rights to purchase
stock under all employee stock purchase plans of the Company and its Parents or
Subsidiaries to accrue at a rate which exceeds Twenty-Five Thousand Dollars
($25,000) worth of stock (determined at the Fair Market Value of the shares at
the time such option is granted) for each calendar year in which such option is
outstanding at any time.  The determination of the accrual of the right to
purchase stock shall be made in accordance with Section 423(b)(8) of the Code
and the regulations thereunder.

          (c)  Other Limits on Eligibility.  Notwithstanding Subsection (a),
               ---------------------------
above, the following Employees shall not be eligible to participate in the Plan
for any relevant Offer Period: (i) Employees whose customary employment is 20 or
fewer hours or less per week; (ii) Employees whose customary employment is for
not more than 5 or fewer months in any calendar year; and (iii) Employees who
are subject to rules or laws of a foreign jurisdiction that prohibit or make
impractical the participation of such Employees in the Plan.

          4.   Offer Periods.
               -------------

          (a)  The Plan shall be implemented through overlapping or consecutive
Offer Periods until such time as (i) the maximum number of shares of Common
Stock available for issuance under the Plan shall have been purchased or (ii)
the Plan shall have been sooner terminated in accordance with Section 19 hereof.
The maximum duration of an Offer Period shall be twenty-four (24) months.
Initially, the Plan shall be implemented through overlapping

                                       4
<PAGE>

Offer Periods of twenty-four (24) months' duration commencing each November 1,
February 1, May 1 and August 1 following the Effective Date.

          (b)  A Participant shall be granted a separate option for each Offer
Period in which he or she participates.  The option shall be granted on the
Enrollment Date and shall be automatically exercised in successive installments
on the Exercise Dates ending within the Offer Period.

          (c)  An Employee may participate in only one Offer Period at a time.
Accordingly, except as provided in Section 4(d), an Employee who wishes to join
a new Offer Period must withdraw from the current Offer Period in which the
Employee is participating and must also enroll in the new Offer Period prior to
the Enrollment Date for that Offer Period.

          (d)  If on the first day of any Purchase Period in an Offer Period in
which a Participant is participating, the Fair Market Value of the Common Stock
is less than the Fair Market Value of the Common Stock on the Enrollment Date of
the Offer Period (after taking into account any adjustment during the Offer
Period pursuant to Section 18(a)), the Offer Period shall be terminated
automatically and the Participant shall be enrolled automatically in the new
Offer Period which has its first Purchase Period commencing on that date,
provided the Participant is eligible to participate in the Plan on that date and
has not elected to terminate participation in the Plan.

          (e)  Except as specifically provided herein, the acquisition of Common
Stock through participation in the Plan for any Offer Period shall neither limit
nor require the acquisition of Common Stock by a Participant in any subsequent
Offer Period.

          5.   Participation.
               -------------

          (a)  An eligible Employee may become a Participant in the Plan by
completing a subscription agreement authorizing payroll deductions in the form
of Exhibit A to this Plan and filing it with the designated payroll office of
the Company at least ten (10) business days prior to the Enrollment Date for the
Offer Period in which such participation will commence, unless a later time for
filing the subscription agreement is set by the Administrator for all eligible
Employees with respect to a given Offer Period.

          (b)  Payroll deductions for a Participant shall commence with the
first partial or full payroll period beginning on the Enrollment Date and shall
end on the last complete payroll period during the Offer Period, unless sooner
terminated by the Participant as provided in Section 10.

          6.   Payroll Deductions.
               ------------------

          (a)  At the time a Participant files a subscription agreement, the
Participant shall elect to have payroll deductions made during the Offer Period
in amounts between one percent (1%) and not exceeding ten percent (10%) of the
Compensation which the Participant receives during the Offer Period.

                                       5
<PAGE>

          (b)  All payroll deductions made for a Participant shall be credited
to the Participant's account under the Plan and will be withheld in whole
percentages only. A Participant may not make any additional payments into such
account.

          (c)  A Participant may discontinue participation in the Plan as
provided in Section 10, or may increase or decrease the rate of payroll
deductions during the Offer Period by completing and filing with the Company a
change of status notice in the form of Exhibit B to this Plan authorizing an
increase or decrease in the payroll deduction rate.  Any increase or decrease in
the rate of a Participant's payroll deductions shall be effective with the first
full payroll period commencing ten (10) business days after the Company's
receipt of the change of status notice unless the Company elects to process a
given change in participation more quickly.  A Participant's subscription
agreement (as modified by any change of status notice) shall remain in effect
for successive Offer Periods unless terminated as provided in Section 10.  The
Administrator shall be authorized to limit the number of payroll deduction rate
changes during any Offer Period.

          (d)  Notwithstanding the foregoing, to the extent necessary to comply
with Section 423(b)(8) of the Code and Section 3(b) herein, a Participant's
payroll deductions may be decreased to 0% at such time during any Purchase
Period which is scheduled to end during the current calendar year (the "Current
Purchase Period") that the aggregate of all payroll deductions which were
previously used to purchase stock under the Plan in a prior Purchase Period
which ended during that calendar year plus all payroll deductions accumulated
with respect to the Current Purchase Period equal $21,250.  Payroll deductions
shall recommence at the rate provided in such Participant's subscription
agreement, as amended, at the beginning of the first Purchase Period which is
scheduled to end in the following calendar year, unless terminated by the
Participant as provided in Section 10.

          7.   Grant of Option.  On the Enrollment Date, each Participant shall
               ---------------
be granted an option to purchase (at the applicable Purchase Price) up to eight
thousand (8,000) shares of the Common Stock, subject to adjustment as provided
in Section 18 hereof; provided (i) that such option shall be subject to the
limitations set forth in Sections 3(b), 6 and 12 hereof, and (ii) the maximum
number of shares of Common Stock a Participant shall be permitted to purchase in
any Purchase Period shall be one thousand (1,000) shares, subject to adjustment
as provided in Section 18 hereof.  Exercise of the option shall occur as
provided in Section 8, unless the Participant has withdrawn pursuant to Section
10, and the option, to the extent not exercised, shall expire on the last day of
the Offer Period.

          8.   Exercise of Option.  Unless a Participant withdraws from the Plan
               ------------------
as provided in Section 10, below, the Participant's option for the purchase of
shares will be exercised automatically on each Exercise Date, by applying the
accumulated payroll deductions in the Participant's account to purchase the
number of full shares subject to the option by dividing such Participant's
payroll deductions accumulated prior to such Exercise Date and retained in the
Participant's account as of the Exercise Date by the applicable Purchase Price.
No fractional shares will be purchased; any payroll deductions accumulated in a
Participant's account which are not sufficient to purchase a full share shall be
carried over to the next Purchase Period or Offer Period, whichever applies, or
returned to the Participant, if the Participant

                                       6
<PAGE>

withdraws from the Plan. Notwithstanding the foregoing, any amount remaining in
a Participant's account following the purchase of shares on the Exercise Date
due to the application of Section 423(b)(8) of the Code or Section 7, above,
shall be returned to the Participant and shall not be carried over to the next
Offer Period. During a Participant's lifetime, a Participant's option to
purchase shares hereunder is exercisable only by the Participant.

          9.   Delivery.  Upon receipt of a request from a Participant after
               --------
each Exercise Date on which a purchase of shares occurs, the Company shall
arrange the delivery to such Participant, as promptly as practicable, of a
certificate representing the shares purchased upon exercise of the Participant's
option.

          10.  Withdrawal; Termination of Employment.
               -------------------------------------

          (a)  A Participant may either (i) withdraw all but not less than all
the payroll deductions credited to the Participant's account and not yet used to
exercise the Participant's option under the Plan or (ii) terminate future
payroll deductions, but allow accumulated payroll deductions to be used to
exercise the Participant's option under the Plan at any time by giving written
notice to the Company in the form of Exhibit B to this Plan.  If the Participant
elects withdrawal alternative (i) described above, all of the Participant's
payroll deductions credited to the Participant's account will be paid to such
Participant as promptly as practicable after receipt of notice of withdrawal,
such Participant's option for the Offer Period will be automatically terminated,
and no further payroll deductions for the purchase of shares will be made during
the Offer Period.  If the Participant elects withdrawal alternative (ii)
described above, no further payroll deductions for the purchase of shares will
be made during the Offer Period, all of the Participant's payroll deductions
credited to the Participant's account will be applied to the exercise of the
Participant's option on the next Exercise Date, and after such Exercise Date,
such Participant's option for the Offer Period will be automatically terminated.
If a Participant withdraws from an Offer Period, payroll deductions will not
resume at the beginning of the succeeding Offer Period unless the Participant
delivers to the Company a new subscription agreement.

          (b)  Upon termination of a Participant's employment relationship (as
described in Section 2(k)) at a time more than three (3) months from the next
scheduled Exercise Date, the payroll deductions credited to such Participant's
account during the Offer Period but not yet used to exercise the option will be
returned to such Participant or, in the case of his/her death, to the person or
persons entitled thereto under Section 14, and such Participant's option will be
automatically terminated.  Upon termination of a Participant's employment
relationship (as described in Section 2(k)) within three (3) months of the next
scheduled Exercise Date, the payroll deductions credited to such Participant's
account during the Offer Period but not yet used to exercise the option will be
applied to the purchase of Common Stock on the next Exercise Date, unless the
Participant (or in the case of the Participant's death, the person or persons
entitled to the Participant's account balance under Section 14) withdraws from
the Plan by submitting a change of status notice in accordance with subsection
(a) of this Section 10.  In such a case, no further payroll deductions will be
credited to the Participant's account following the Participant's termination of
employment and the Participant's option under the Plan will be

                                       7
<PAGE>

automatically terminated after the purchase of Common Stock on the next
scheduled Exercise Date.

          11.  Interest.  No interest shall accrue on the payroll deductions
               --------
credited to a Participant's account under the Plan.

          12.  Stock.
               -----

          (a)  Subject to adjustment upon changes in capitalization of the
Company as provided in Section 18, the maximum number of shares of Common Stock
which shall be made available for sale under the Plan shall be 600,000 shares,
plus an annual increase to be added on the first day of the Company's fiscal
year beginning in 2001 equal to the lesser of (i) 300,000 shares, (ii) one and
one-half percent (1.5%) of the outstanding shares on such date, or (iii) a
lesser number of shares determined by the Administrator.  If on a given Exercise
Date the number of shares with respect to which options are to be exercised
exceeds the number of shares then available under the Plan, the Administrator
shall make a pro rata allocation of the shares remaining available for purchase
in as uniform a manner as shall be practicable and as it shall determine to be
equitable.

          (b)  A Participant will have no interest or voting right in shares
covered by the Participant's option until such shares are actually purchased on
the Participant's behalf in accordance with the applicable provisions of the
Plan.  No adjustment shall be made for dividends, distributions or other rights
for which the record date is prior to the date of such purchase.

          (c)  Shares to be delivered to a Participant under the Plan will be
registered in the name of the Participant or in the name of the Participant and
his or her spouse.

          13.  Administration.  The Plan shall be administered by the
               --------------
Administrator which shall have full and exclusive discretionary authority to
construe, interpret and apply the terms of the Plan, to determine eligibility
and to adjudicate all disputed claims filed under the Plan.  Every finding,
decision and determination made by the Administrator shall, to the full extent
permitted by Applicable Law, be final and binding upon all persons.

          14.  Designation of Beneficiary.
               --------------------------

          (a)  Each Participant will file a written designation of a beneficiary
who is to receive any shares and cash, if any, from the Participant's account
under the Plan in the event of such Participant's death.  If a Participant is
married and the designated beneficiary is not the spouse, spousal consent shall
be required for such designation to be effective.

          (b)  Such designation of beneficiary may be changed by the Participant
(and the Participant's spouse, if any) at any time by written notice.  In the
event of the death of a Participant and in the absence of a beneficiary validly
designated under the Plan who is living (or in existence) at the time of such
Participant's death, the Company shall deliver such shares and/or cash to the
executor or administrator of the estate of the Participant, or if no such
executor or administrator has been appointed (to the knowledge of the
Administrator), the Administrator

                                       8
<PAGE>

shall deliver such shares and/or cash to the executor or administrator of the
estate of the Participant, or if no such executor or administrator has been
appointed (to the knowledge of the Administrator), the Administrator shall
deliver such shares and/or cash to the spouse (or domestic partner, as
determined by the Administrator) of the Participant, or if no spouse (or
domestic partner) is known to the Administrator, then to the issue of the
Participant, such distribution to be made per stirpes (by right of
representation), or if no issue are known to the Administrator, then to the
heirs at law of the Participant determined under in accordance with Section 27.

          15.  Transferability.  Neither payroll deductions credited to a
               ---------------
Participant's account nor any rights with regard to the exercise of an option or
to receive shares under the Plan may be assigned, transferred, pledged or
otherwise disposed of in any way (other than by will, the laws of descent and
distribution or as provided in Section 14 hereof) by the Participant.  Any such
attempt at assignment, transfer, pledge or other disposition shall be without
effect, except that the Administrator may treat such act as an election to
withdraw funds from an Offer Period in accordance with Section 10.

          16.  Use of Funds.  All payroll deductions received or held by the
               ------------
Company under the Plan may be used by the Company for any corporate purpose, and
the Company shall not be obligated to segregate such payroll deductions.

          17.  Reports.  Individual accounts will be maintained for each
               -------
Participant in the Plan.  Statements of account will be given to Participants at
least annually, which statements will set forth the amounts of payroll
deductions, the Purchase Price, the number of shares purchased and the remaining
cash balance, if any.

          18.  Adjustments Upon Changes in Capitalization; Corporate
               -----------------------------------------------------
Transactions.
------------

          (a)  Adjustments Upon Changes in Capitalization.  Subject to any
               ------------------------------------------
required action by the stockholders of the Company, the Reserves, the Purchase
Price, as well as any other terms that the Administrator determines require
adjustment shall be proportionately adjusted for (i) any increase or decrease in
the number of issued shares of Common Stock resulting from a stock split,
reverse stock split, stock dividend, combination or reclassification of the
Common Stock, (ii) any other increase or decrease in the number of issued shares
of Common Stock effected without receipt of consideration by the Company, or
(iii) as the Administrator may determine in its discretion, any other
transaction with respect to Common Stock to which Section 424(a) of the Code
applies; provided, however that conversion of any convertible securities of the
Company shall not be deemed to have been "effected without receipt of
consideration."  Such adjustment shall be made by the Administrator and its
determination shall be final, binding and conclusive.  Except as the
Administrator determines, no issuance by the Company of shares of stock of any
class, or securities convertible into shares of stock of any class, shall
affect, and no adjustment by reason hereof shall be made with respect to, the
Reserves and the Purchase Price.

          (b)  Corporate Transactions.  In the event of a proposed Corporate
               ----------------------
Transaction, each option under the Plan shall be assumed by such successor
corporation or a parent or subsidiary of such successor corporation, unless the
Administrator determines, in the exercise of its sole discretion and in lieu of
such assumption, to shorten the Offer Period then in progress by setting a new
Exercise Date (the "New Exercise Date").  If the Administrator shortens the
Offer Period then in progress in lieu of assumption in the event of a Corporate
Transaction, the

                                       9
<PAGE>

Administrator shall notify each Participant in writing, at least ten (10) days
prior to the New Exercise Date, that the Exercise Date for the Participant's
option has been changed to the New Exercise Date and that the Participant's
option will be exercised automatically on the New Exercise Date, unless prior to
such date the Participant has withdrawn from the Offer Period as provided in
Section 10. For purposes of this Subsection, an option granted under the Plan
shall be deemed to be assumed if, in connection with the Corporate Transaction,
the option is replaced with a comparable option with respect to shares of
capital stock of the successor corporation or Parent thereof. The determination
of option comparability shall be made by the Administrator prior to the
Corporate Transaction and its determination shall be final, binding and
conclusive on all persons.

          19.  Amendment or Termination.
               ------------------------

          (a)  The Administrator may at any time and for any reason terminate or
amend the Plan.  Except as provided in Section 18, no such termination can
affect options previously granted, provided that an Offer Period may be
terminated by the Administrator on any Exercise Date if the Administrator
determines that the termination of the Offer Period is in the best interests of
the Company and its stockholders.  Except as provided in Section 18, no
amendment may make any change in any option theretofore granted which adversely
affects the rights of any Participant without the consent of affected
Participants.  To the extent necessary to comply with Section 423 of the Code
(or any successor rule or provision or any other Applicable Law), the Company
shall obtain stockholder approval in such a manner and to such a degree as
required.

          (b)  Without stockholder consent and without regard to whether any
Participant rights may be considered to have been "adversely affected," the
Administrator shall be entitled to limit the frequency and/or number of changes
in the amount withheld during Offer Periods, change the length of Purchase
Periods within any Offer Period, determine the length of any future Offer
Period, whether future Offer Periods shall be consecutive or overlapping,
establish the exchange ratio applicable to amounts withheld in a currency other
than U.S. dollars, establish additional terms, conditions, rules or procedures
to accommodate the rules or laws of applicable foreign jurisdictions, permit
payroll withholding in excess of the amount designated by a Participant in order
to adjust for delays or mistakes in the Company's processing of properly
completed withholding elections, establish reasonable waiting and adjustment
periods and/or accounting and crediting procedures to ensure that amounts
applied toward the purchase of Common Stock for each Participant properly
correspond with amounts withheld from the Participant's Compensation, and
establish such other limitations or procedures as the Administrator determines
in its sole discretion advisable and which are consistent with the Plan.

          20.  Notices.  All notices or other communications by a Participant to
               -------
the Company under or in connection with the Plan shall be deemed to have been
duly given when received in the form specified by the Administrator at the
location, or by the person, designated by the Administrator for the receipt
thereof.

          21.  Conditions Upon Issuance of Shares.  Shares shall not be issued
               ----------------------------------
with respect to an option unless the exercise of such option and the issuance
and delivery of such shares pursuant thereto shall comply with all Applicable
Laws and shall be further subject to the

                                       10
<PAGE>

approval of counsel for the Company with respect to such compliance. As a
condition to the exercise of an option, the Company may require the Participant
to represent and warrant at the time of any such exercise that the shares are
being purchased only for investment and without any present intention to sell or
distribute such shares if, in the opinion of counsel for the Company, such a
representation is required by any of the aforementioned Applicable Laws. In
addition, no options shall be exercised or shares issued hereunder before the
Plan shall have been approved by stockholders of the Company as provided in
Section 23.

          22.  Term of Plan.  The Plan shall become effective upon the earlier
               ------------
to occur of its adoption by the Board or its approval by the stockholders of the
Company.  It shall continue in effect for a term of ten (10) years unless sooner
terminated under Section 19.

          23.  Stockholder Approval.  Continuance of the Plan shall be subject
               --------------------
to approval by the stockholders of the Company within twelve (12) months before
or after the date the Plan is adopted.  Such stockholder approval shall be
obtained in the degree and manner required under Applicable Laws.

          24.  No Employment Rights.  The Plan does not, directly or indirectly,
               --------------------
create any right for the benefit of any employee or class of employees to
purchase any shares under the Plan, or create in any employee or class of
employees any right with respect to continuation of employment by the Company or
a Designated Parent or Subsidiary, and it shall not be deemed to interfere in
any way with such employer's right to terminate, or otherwise modify, an
employee's employment at any time.

          25.  No Effect on Retirement and Other Benefit Plans.  Except as
               -----------------------------------------------
specifically provided in a retirement or other benefit plan of the Company or a
Designated Parent or Subsidiary, participation in the Plan shall not be deemed
compensation for purposes of computing benefits or contributions under any
retirement plan of the Company or a Designated Parent or Subsidiary, and shall
not affect any benefits under any other benefit plan of any kind or any benefit
plan subsequently instituted under which the availability or amount of benefits
is related to level of compensation.  The Plan is not a "Retirement Plan" or
"Welfare Plan" under the Employee Retirement Income Security Act of 1974, as
amended.

          26.  Effect of Plan.  The provisions of the Plan shall, in accordance
               --------------
with its terms, be binding upon, and inure to the benefit of, all successors of
each Participant, including, without limitation, such Participant's estate and
the executors, administrators or trustees thereof, heirs and legatees, and any
receiver, trustee in bankruptcy or representative of creditors of such
Participant.

          27.  Governing Law.  The Plan is to be construed in accordance with
               -------------
and governed by the internal laws of the State of California (as permitted by
Section 1646.5 of the California Civil Code, or any similar successor provision)
without giving effect to any choice of law rule that would cause the application
of the laws of any jurisdiction other than the internal laws of the State of
California to the rights and duties of the parties, except to the extent the
internal laws of the State of California are superseded by the laws of the
United States.  Should

                                       11
<PAGE>

any provision of the Plan be determined by a court of law to be illegal or
unenforceable, the other provisions shall nevertheless remain effective and
shall remain enforceable.

                                       12
<PAGE>

             Pericom Semiconductor Corporation 2000 Employee Stock Purchase Plan
                                                          SUBSCRIPTION AGREEMENT

                                   Effective with the Offer Period beginning on:

 [_] November 1, 20__  [_] February 1, 20__  [_] May 1, 20__   [_] August 1,20__

Personal Information <modify data requested as appropriate>

<TABLE>
<S>                                                                              <C>                       <C>
Legal Name (Please Print) ____________________________________________________   ________________________  ________________________
                              (Last)          (First)        (MI)                   Location                  Department

Street Address________________________________________________________________   __________________________________________________
                                                                                    Daytime Telephone

City, State/Country, Zip _____________________________________________________   __________________________________________________
                                                                                    E-Mail Address

Social Security No. __ __ __ - __ __ - __ __ __ __  Employee I.D. No. ________   __________________________________________________
                                                                                    Manager                   Mgr. Location
</TABLE>

Eligibility   Any Employee whose customary employment is more than 20 hours per
week and more than 5 months per calendar year and who does not hold (directly or
indirectly) five percent (5%) or more of the combined voting power of the
Company, a parent or a subsidiary, whether in stock or options to acquire stock
is eligible to participate in the Pericom Semiconductor Corporation 2000
Employee Stock Purchase Plan (the "ESPP"); provided, however, that Employees who
are subject to the rules or laws of a foreign jurisdiction that prohibit or make
impractical the participation of such Employees in the ESPP are not eligible to
participate.
Definitions   Each capitalized term in this Subscription Agreement shall have
the meaning set forth in the ESPP.
Subscription   I hereby elect to participate in the ESPP and subscribe to
purchase shares of the Company's Common Stock in accordance with this
Subscription Agreement and the ESPP. I have received a complete copy of the ESPP
and a prospectus describing the ESPP and understand that my participation in the
ESPP is in all respects subject to the terms of the ESPP. The effectiveness of
this Subscription Agreement is dependent on my eligibility to participate in the
ESPP.
Payroll Deduction Authorization I hereby authorize payroll deductions from my
Compensation during the Offer Period in the percentage specified below (payroll
deductions may not exceed 10% of Compensation nor $21,250 per calendar year):

--------------------------------------------------------------------------------
Percentage to be Deducted (circle one)   1%  2%  3%  4%  5%  6%  7%  8%  9%  10%
--------------------------------------------------------------------------------

ESPP Accounts and Purchase Price   I understand that all payroll deductions will
be credited to my account under the ESPP. No additional payments may be made to
my account. No interest will be credited on funds held in the account at any
time including any refund of the account caused by withdrawal from the ESPP. All
payroll deductions shall be accumulated for the purchase of Company Common Stock
at the applicable Purchase Price determined in accordance with the ESPP.
Withdrawal and Changes in Payroll Deduction   I understand that I may
discontinue my participation in the ESPP at any time prior to an Exercise Date
as provided in Section 10 of the ESPP, but if I do not withdraw from the ESPP,
any accumulated payroll deductions will be applied automatically to purchase
Company Common Stock. I may decrease the rate of my payroll deductions in whole
percentage increments to not less than one percent (1%) during any Offer Period
by completing and timely filing a Change of Status Notice. Any decrease will be
effective for the full payroll period occurring after ten (10) business days
from the Company's receipt of the Change of Status Notice. I may increase the
rate of my payroll deductions in whole percentage increments to not more than
ten percent (10%) during any Offer Period by completing and timely filing a
Change of Status Notice. Any increase will be effective for the next Purchase
Period after the Company's receipt of the Change of Status Notice. Perpetual
Subscription   I understand that this Subscription Agreement shall remain in
effect for successive Offer Periods until I withdraw from participation in the
ESPP, or termination of the ESPP. Taxes I have reviewed the ESPP prospectus
discussion of the federal tax consequences of participation in the ESPP and
consulted with tax consultants as I deemed advisable prior to my participation
in the ESPP. I hereby agree to notify the Company in writing within thirty (30)
days of any disposition (transfer or sale) of any shares purchased under the

                                      A-1
<PAGE>

ESPP if such disposition occurs within two (2) years of the Enrollment Date (the
first day of the Offer Period during which the shares were purchased) or within
one (1) year of the Exercise Date (the date I purchased such shares), and I will
make adequate provision to the Company for foreign, federal, state or other tax
withholding obligations, if any, which arise upon the disposition of the shares.
In addition, the Company may withhold from my Compensation any amount necessary
to meet applicable tax withholding obligations incident to my participation in
the ESPP, including any withholding necessary to make available to the Company
any tax deductions or benefits contingent on such withholding.
Designation of Beneficiary   In the event of my death, I hereby designate the
following person or trust as my beneficiary to receive all payments and shares
due to me under the ESPP:    [_] I am single   [_] I am married

<TABLE>
<S>                                                                              <C>
Beneficiary (please print) ___________________________________________________   Relationship to Beneficiary (if any)
                                   (Last)        (First)            (MI)

Street Address _______________________________________________________________   ____________________________________
</TABLE>

City, State/Country, Zip _____________________________________________________

Termination of ESPP   I understand that the Company has the right, exercisable
in its sole discretion, to amend or terminate the ESPP at any time, and a
termination may be effective as early as an Exercise Date (after purchase of
shares on such date) within each outstanding Offer Period.

Date:_____________________  Employee Signature:_________________________

                                               _________________________
                                               spouse's signature (if
                                               beneficiary is other than spouse)

                                      A-2
<PAGE>

             Pericom Semiconductor Corporation 2000 Employee Stock Purchase Plan
                                                         CHANGE OF STATUS NOTICE

___________________________________________
 Participant Name (Please Print)

___________________________________________
 Social Security Number

================================================================================
       Withdrawal From ESPP

       I hereby withdraw from the Pericom Semiconductor Corporation 2000
       Employee Stock Purchase Plan (the "ESPP") and agree that my option under
       the applicable Offer Period will be automatically terminated and all
       accumulated payroll deductions credited to my account will be refunded to
       me or applied to the purchase of Common Stock depending on the
       alternative indicated below. No further payroll deductions will be made
       for the purchase of shares in the applicable Offer Period and I shall be
       eligible to participate in a future Offer Period only by timely delivery
       to the Company of a new Subscription Agreement.

  [_]  Withdrawal and Purchase of Common Stock

       Payroll deductions will terminate, but your account balance will be
       applied to purchase Common Stock on the next Exercise Date. Any remaining
       balance will be refunded.

  [_]  Withdrawal Without Purchase of Common Stock

       Entire account balance will be refunded to me and no Common Stock will be
       purchased on the next Exercise Date provided this notice is submitted to
       the Company ten (10) business days prior to the next Exercise Date.

================================================================================

  [_]  Change in Payroll Deduction

       I hereby elect to change my rate of payroll deduction under the ESPP as
       follows (select one):
--------------------------------------------------------------------------------
 Percentage to be Deducted (circle one)  1%  2%  3%  4%  5%  6%  7%  8%  9%  10%
--------------------------------------------------------------------------------

       A decrease in payroll deduction will be effective for the first full
       payroll period commencing no fewer than ten (10) business days following
       the Company's receipt of this notice, unless this change is processed
       more quickly.

       Any increase will be effective for the next Purchase Period after the
       Company's receipt of the Change of Status Notice.

================================================================================

                                      B-1
<PAGE>

  [_]  Change of Beneficiary          [_]  I am single     [_]  I am married

       This change of beneficiary shall terminate my previous beneficiary
       designation under the ESPP. In the event of my death, I hereby designate
       the following person or trust as my beneficiary to receive all payments
       and shares due to me under the ESPP:

<TABLE>
<S>                                                                              <C>
   Beneficiary (please print) ___________________________________________________   Relationship to Beneficiary (if any)
                                   (Last)        (First)            (MI)

   Street Address _______________________________________________________________   ____________________________________
</TABLE>

   City, State/Country, Zip ____________________________________________________

================================================================================

   Date:__________________  Employee Signature:______________________________

                                               ______________________________
                                               spouse's signature (if
                                               beneficiary is other than spouse)

                                      B-1

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00020-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00020-of-00352.parquet"}]]