<PAGE>
                                                                   EXHIBIT 10.64

NOTICE OF GRANT OF STOCK OPTIONS                   ESS TECHNOLOGY, INC
AND OPTION AGREEMENT ID:                           48401 Fremont Boulevard
                                                   Fremont, CA 94538
                                                   (510) 492-1088

[NAME OF OPTIONEE]                                  OPTION NUMBER:
[ADDRESS OF OPTIONEE]                               PLAN:  95D
                                                    ID:


Effective [Grant Date], you have been granted a(n) Non-Qualified Stock Option to
buy [Number] shares of ESS TECHNOLOGY, INC. (the "Company") stock at $[Option
Price] per share.

The total option price of the shares granted is $[Total Grant Price].

Shares in each period will become fully vested on the date shown.

<TABLE>
<CAPTION>
         SHARES           VEST TYPE        FULL VEST           EXPIRATION
         ------           ---------        ---------           ----------
<S>     <C>               <C>              <C>                 <C>







</TABLE>

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By your signature and the Company's signature below, you and the Company agree
that these options are granted under and governed by the terms and conditions of
the Company's Stock Option Plan as amended and the Option Agreement, all of
which are attached and made a part of this document.
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--------------------------------         ---------------------------
ESS TECHNOLOGY, INC.                     Date

--------------------------------         ---------------------------
[Name of Optionee]                       Date

                                         Date:
                                         Time:
<PAGE>
                              ESS TECHNOLOGY, INC.
                        1995 DIRECTORS STOCK OPTION PLAN

                             DIRECTORS NONQUALIFIED
                     SUCCEEDING STOCK OPTION GRANT AGREEMENT

     This Succeeding Stock Option Grant Agreement (this "GRANT") is made and
entered into pursuant to the Company's 1995 Directors Stock Option Plan (the
"PLAN") as of the date of grant (the "GRANT DATE") set forth in the Notice of
Grant of Stock Options and Option Agreement attached hereto (the "NOTICE") by
and between ESS Technology, Inc., a California corporation (the "COMPANY"), and
the Optionee named in the Notice ("OPTIONEE").

     1.   GRANT OF OPTION. The Company hereby grants to Optionee an option (this
"OPTION") to purchase up to the total number of shares of Common Stock of the
Company set forth in the Notice (collectively, the "SHARES") at the exercise
price per share set forth in the Notice (the "EXERCISE PRICE"), subject to all
of the terms and conditions of this Grant, the Notice, and the Plan. Unless
otherwise defined herein, capitalized terms used herein shall have the meanings
ascribed to them in the Plan.

     2.   EXERCISE AND VESTING OF OPTION. Subject to the terms and conditions of
the Plan, the Notice, and this Grant, this Option shall become exercisable as it
vests. Subject to the terms and conditions of the Plan, the Notice, and this
Grant, this Option shall vest as to 1/48th of the Shares monthly on the same day
each month as the Grant Date beginning with the first month following the Grant
Date, so long as the Optionee continuously remains a member of the Board of
Directors of the Company (a "BOARD MEMBER").

     3.   RESTRICTION ON EXERCISE. This Option may not be exercised unless such
exercise is in compliance with the Securities Act, and all applicable state
securities laws, as they are in effect on the date of exercise, and the
requirements of any stock exchange or national market system on which the
Company's Common Stock may be listed at the time of exercise. Optionee
understands that the Company is under no obligation to register, qualify or list
the Shares with the SEC, any state securities commission or any stock exchange
or national market system to effect such compliance.

     4.   TERMINATION OF OPTION. Except as provided below in this Section, this
Option shall terminate and may not be exercised on the earlier of the expiration
date set forth in the Notice or the date Optionee ceases to be a Board Member.
The date on which Optionee ceases to be a Board Member shall be referred to as
the "TERMINATION DATE." If Optionee ceases to be a Board Member for any reason,
then this Option, to the extent (and only to the extent) that it would have been
exercisable by Optionee on the Termination Date, may be exercised by Optionee
(or Optionee's legal representative) within three (3) years after the
Termination Date, but in no event later than the expiration date set forth in
the Notice.

     5.   MANNER OF EXERCISE.

          5.1  Exercise Agreement. This Option shall be exercisable by delivery
to the Company of an executed written Directors Stock Option Exercise Agreement
in the form attached hereto as Exhibit A, or in such other form as may be
approved by the Committee, which shall set forth Optionee's election to exercise
some or all of this Option,


<PAGE>

the number of Shares being purchased, any restrictions imposed on the Shares and
such other representations and agreements as may be required by the Company to
comply with applicable securities laws.

          5.2  Payment. Payment for the Shares purchased upon exercise of this
Option may be made (a) in cash or by check; (b) by surrender of shares of Common
Stock of the Company that have been owned by Optionee for more than six (6)
months (and which have been paid for within the meaning of SEC Rule 144 and, if
such shares were purchased from the Company by use of a promissory note, such
note has been fully paid with respect to such shares) or were obtained by the
Optionee in the open public market, having a Fair Market Value equal to the
Exercise Price of the Option; (c) by waiver of compensation due or accrued to
Optionee for services rendered; (d) provided that a public market for the
Company's stock exists, through a "same day sale" commitment from the Optionee
and a broker-dealer that is a member of the National Association of Securities
Dealers (an "NASD Dealer") whereby the Optionee irrevocably elects to exercise
the Option and to sell a portion of the Shares so purchased to pay for the
Exercise Price and whereby the NASD Dealer irrevocably commits upon receipt of
such Shares to forward the Exercise Price directly to the Company; or (e) by any
combination of the foregoing.

          5.3  Withholding Taxes. Prior to the issuance of the Shares upon
exercise of this Option, Optionee shall pay or make adequate provision for any
applicable federal or state withholding obligations of the Company.

          5.4  Issuance of Shares. Provided that such notice and payment are in
form and substance satisfactory to counsel for the Company, the Company shall
cause the Shares to be issued in the name of Optionee or Optionee's legal
representative. To enforce any restrictions on Optionee's Shares, the Committee
may require Optionee to deposit all certificates, together with stock powers or
other instruments of transfer approved by the Committee appropriately endorsed
in blank, with the Company or an agent designated by the Company to hold in
escrow until such restrictions have lapsed or terminated, and the Committee may
cause a legend or legends referencing such restrictions to be placed on the
certificates.

     6.   NONTRANSFERABILITY OF OPTION. During the lifetime of the Optionee,
this Option shall be exercisable only by Optionee or by Optionee's guardian or
legal representative, unless otherwise permitted by the Committee. This Option
may not be sold, pledged, assigned, hypothecated, transferred or disposed of in
any manner other than by will or by the laws of descent and distribution.

     7.   INTERPRETATION. Any dispute regarding the interpretation of this Grant
shall be submitted by Optionee or the Company to the Committee that administers
the Plan, which shall review such dispute at its next regular meeting. The
resolution of such a dispute by the Committee shall be final and binding on the
Company and on Optionee. Nothing in the Plan or this Grant shall confer on
Optionee any right to continue as a Board Member.

     8.   ENTIRE AGREEMENT. The Plan, the Grant, and the Directors Stock Option
Exercise Agreement in the form attached hereto as Exhibit A, and the terms and
conditions thereof, are incorporated herein by this reference. The Notice, this
Grant, the Plan and the Directors Stock Option Exercise Agreement constitute the
entire agreement and understanding of the parties hereto with respect to the
subject matter hereof and supersede all prior understandings and agreements with
respect to such subject matter.

                                       2
<PAGE>

                                    EXHIBIT A
                              ESS TECHNOLOGY, INC.
                        1995 DIRECTORS STOCK OPTION PLAN
                    DIRECTORS STOCK OPTION EXERCISE AGREEMENT

I hereby elect to purchase the number of shares of common stock of ESS
TECHNOLOGY, INC. (the "COMPANY") as set forth below:

<TABLE>
<CAPTION>
<S>                                               <C>
Optionee:______________________________________   Number of Shares Purchased: ___________________________________
Address:_______________________________________   Purchase Price per Share: _____________________________________
_______________________________________________   Aggregate Purchase Price: _____________________________________
Type of Stock Option: Nonqualified Stock Option   Date of Stock Option Grant: ___________________________________
                                                  Exact Name of Title to Shares: ________________________________
</TABLE>


1.   DELIVERY OF PURCHASE PRICE. Optionee hereby delivers to the Company the
     Aggregate Purchase Price, to the extent permitted in the Directors
     Nonqualified Stock Option Grant referred to above (the "GRANT"), as follows
     (check as applicable and complete):

[ ]  in cash (by check) in the amount of $__________, receipt of which is
     acknowledged by the Company;

[ ]  by delivery of _________ fully-paid, nonassessable and vested shares of
     the common stock of the Company owned by Optionee for at least six (6)
     months prior to the date hereof (and which have been paid for within the
     meaning of SEC Rule 144), or obtained by Optionee in the open public
     market, and owned free and clear of all liens, claims, encumbrances or
     security interests, valued at the current Fair Market Value of $________
     per share;

[ ]  by the waiver hereby of compensation due or accrued to Optionee for
     services rendered in the amount of $_________; or

[ ]  through a "same-day-sale" commitment, delivered herewith, from Optionee
     and the NASD Dealer named therein, in the amount of $__________.

2.   MARKET STANDOFF AGREEMENT. Optionee, if requested by the Company and an
     underwriter of Common Stock (or other securities) of the Company, agrees
     not to sell or otherwise transfer or dispose of any Common Stock (or other
     securities) of the Company held by Optionee during the period requested by
     the managing underwriter following the effective date of a registration
     statement of the Company filed under the Securities Act, provided that all
     officers and directors of the Company are required to enter into similar
     agreements. Such agreement shall be in writing in a form satisfactory to
     the Company and such underwriter. The Company may impose stop-transfer
     instructions with respect to the shares (or other securities) subject to
     the foregoing restriction until the end of such period.

3.   TAX CONSEQUENCES. 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
     CONSULTANT(S) 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.

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


Date:________________________________         _________________________________
                                              Signature of Optionee
<PAGE>

                              ESS TECHNOLOGY, INC.
                        1995 DIRECTORS STOCK OPTION PLAN
                                SPOUSE'S CONSENT

     I acknowledge that I have read the foregoing Directors Stock Option
Exercise Agreement (the "AGREEMENT") and that I know its contents. I hereby
consent to and approve all the provisions of the Agreement and agree that the
shares of the Common Stock of ESS Technology, Inc. purchased thereunder (the
"SHARES") and any interest I may have in such Shares are subject to all the
provisions of the Agreement. I will take no action at any time to hinder
operation of the Agreement on these Shares or any interest I may have on them.

Spouse of Optionee
_______________________________________        Date: __________________________

_______________________________________        Date: __________________________
Optionee's Name