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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 RaYqgo9uZd/T3Iw+M8xYnrG6jvyCI+ECTIVWZxHH9Hb/wVtoEv4xPoFzxdxdqJXg
 zr3jwaCswgCKDomaACmrWA==

<SEC-DOCUMENT>0001005477-03-004807.txt : 20031219
<SEC-HEADER>0001005477-03-004807.hdr.sgml : 20031219
<ACCEPTANCE-DATETIME>20031219084102
ACCESSION NUMBER:		0001005477-03-004807
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031217
FILED AS OF DATE:		20031219

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STANDARD MICROSYSTEMS CORP
		CENTRAL INDEX KEY:			0000093384
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				112234952
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0228

	BUSINESS ADDRESS:	
		STREET 1:		80 ARKAY DRIVE
		CITY:			HAUPPAUGE
		STATE:			NY
		ZIP:			11934
		BUSINESS PHONE:		5164342904

	MAIL ADDRESS:	
		STREET 1:		80 ARKAY DR
		CITY:			HAUPPAUGE
		STATE:			NY
		ZIP:			11934

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HOLLINGSWORTH ROBERT E
		CENTRAL INDEX KEY:			0001217402

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-07422
		FILM NUMBER:		031063634

	BUSINESS ADDRESS:	
		STREET 1:		C/O STANDARD MICROSYSTEMS CORP
		STREET 2:		PO BOX 18047
		CITY:			HAUPPAUGE
		STATE:			NY
		ZIP:			11788
		BUSINESS PHONE:		6314356401

	MAIL ADDRESS:	
		STREET 1:		C/O STANDARD MICROSYSTEMS CORP
		STREET 2:		PO BOX 18047
		CITY:			HAUPPAUGE
		STATE:			NY
		ZIP:			11788
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar123.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
    <periodOfReport>2003-12-17</periodOfReport>
    <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000093384</issuerCik>
        <issuerName>STANDARD MICROSYSTEMS CORP</issuerName>
        <issuerTradingSymbol>SMSC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>

        <reportingOwnerId>
            <rptOwnerCik>0001217402</rptOwnerCik>
            <rptOwnerName>HOLLINGSWORTH ROBERT E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>80 ARKAY DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HAUPPAUGE</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>11788</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
        <isDirector>0</isDirector>
        <isOfficer>1</isOfficer>
        <isTenPercentOwner>0</isTenPercentOwner>
        <isOther>0</isOther>
        <officerTitle>Sr. Vice President</officerTitle>
    </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>

        <securityTitle>
            <value>Common Stock</value>
        </securityTitle>

        <transactionDate>
            <value>2003-12-17</value>
        </transactionDate>
    <transactionCoding>
        <transactionFormType>4</transactionFormType>
        <transactionCode>A</transactionCode>
        <equitySwapInvolved>0</equitySwapInvolved>
    </transactionCoding>
        <transactionAmounts>

            <transactionShares>
                <value>490</value>
            </transactionShares>

            <transactionPricePerShare>
                <value>0</value>
            </transactionPricePerShare>

            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>

            <sharesOwnedFollowingTransaction>
                <value>13011</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>

            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
        </nonDerivativeTransaction>

        <nonDerivativeHolding>

        <securityTitle>
            <value>Common Stock</value>
        </securityTitle>
        <postTransactionAmounts>

            <sharesOwnedFollowingTransaction>
                <value>10098</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>

            <directOrIndirectOwnership>
                <value>I</value>
            </directOrIndirectOwnership>

            <natureOfOwnership>
                <value>By Trust</value>
                <footnoteId id="F1"/>
            </natureOfOwnership>
        </ownershipNature>
        </nonDerivativeHolding>

    </nonDerivativeTable>
    <footnotes>
        <footnote id="F1">Held in Incentive Savings and Retirement Plan as of 12/17/03.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Michael LaBosco (as Attorney-in-Fact)</signatureName>
        <signatureDate>2003-12-18</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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