Exhibit 99.1




                                 CERTIFICATION


Pursuant to Section 906 of the  Sarbanes-Oxley  Act of 2002 (subsections (a) and
(b) of Section 1350,  Chapter 63 of Title 18,  United States Code),  each of the
undersigned officers of Standard  Microsystems  Corporation (the Company),  does
hereby certify, to such officer's knowledge, that:

The  Quarterly  Report on Form 10-Q for the  quarter  ended May 31,  2003 of the
Company fully  complies,  in all material  respects,  with the  requirements  of
section 13(a) or 15(d) of the Securities  Exchange Act of 1934, and  information
contained  in the Form 10-Q  fairly  presents,  in all  material  respects,  the
financial condition and results of operations of the Company.


Dated: July 15, 2003                       By: /s/ Steven J. Bilodeau
                                           --------------------------
                                                    (signature)

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


                                           By: /s/ Andrew M. Caggia
                                           ------------------------
                                                     (signature)

                                           Andrew M. Caggia
                                           Senior Vice President - Finance
                                           and Chief Financial Officer




A signed  original of this  written  statement  required by Section 906 has been
provided to the Company and will be retained by the Company and furnished to the
Securities and Exchange Commission or its staff upon request.