Exhibit 31.1


                                  CERTIFICATION


I, Steven J. Bilodeau, certify that:

        1. I have  reviewed  this  quarterly  report  on Form  10-Q of  Standard
Microsystems Corporation;

        2.  Based on my  knowledge,  this  report  does not  contain  any untrue
statement of a material fact or omit to state a material fact  necessary to make
the statements made, in light of the  circumstances  under which such statements
were made, not misleading with respect to the period covered by this report;

        3. Based on my knowledge, the financial statements,  and other financial
information included in this report, fairly present in all material respects the
financial  condition,  results of operations and cash flows of the registrant as
of, and for, the periods presented in this report;

        4. The registrant's  other certifying  officer and I are responsible for
establishing and maintaining  disclosure  controls and procedures (as defined in
Exchange Act Rules 13a-15 (e) and 15d-15 (e)) for the registrant and have:

        a) Designed  such  disclosure  controls and  procedures,  or caused such
disclosure  controls and  procedures to be designed  under our  supervision,  to
ensure that  material  information  relating to the  registrant,  including  its
consolidated subsidiaries,  is made known to us by others within those entities,
particularly during the period in which this report is being prepared;

        b) Evaluated the effectiveness of the registrant's  disclosure  controls
and  procedures  and  presented  in  this  report  our  conclusions   about  the
effectiveness  of the disclosure  controls and procedures,  as of the end of the
period covered by this report based on such evaluation; and

        c)  Disclosed  in this  report any change in the  registrant's  internal
control over financial  reporting  that occurred  during the  registrant's  most
recent fiscal quarter that has materially  affected,  or is reasonably likely to
materially affect, the registrant's  internal control over financial  reporting;
and

        5. The registrant's other certifying officer and I have disclosed, based
on our most recent evaluation of internal control over financial  reporting,  to
the registrant's  auditors and the audit committee of the registrant's  board of
directors (or persons performing the equivalent function):

        a) All significant deficiencies and material weaknesses in the design or
operation of internal  control over  financial  reporting  which are  reasonably
likely  to  adversely  affect  the  registrant's  ability  to  record,  process,
summarize and report financial information; and

        b) Any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant's  internal control over
financial reporting.


Date: January 10, 2005                By: /s/ Steven J. Bilodeau
                                      --------------------------
                                             (signature)

                                      Steven J. Bilodeau
                                      Chairman of the Board, President and
                                      Chief Executive Officer