<SUBMISSION>
<ACCESSION-NUMBER>0001104659-10-060678
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20101102
<FILING-DATE>20101201
<DATE-OF-FILING-DATE-CHANGE>20101201
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>MCARTHUR BARBARA L
<CIK>0001232820
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-21970
<FILM-NUMBER>101224527
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>955 EAST ARQUES AVE
<CITY>SUNNYVALE
<STATE>CA
<ZIP>94086
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>ACTEL CORP
<CIK>0000907687
<ASSIGNED-SIC>3674
<IRS-NUMBER>770097724
<STATE-OF-INCORPORATION>CA
<FISCAL-YEAR-END>0103
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>2061 STIERLIN COURT
<CITY>MOUNTAIN VIEW
<STATE>CA
<ZIP>94043-4655
<PHONE>6503184200
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>2061 STIERLIN COURT
<CITY>MOUNTAIN VIEW
<STATE>CA
<ZIP>94043-4655
</MAIL-ADDRESS>
</ISSUER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>a4.xml
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    <footnotes>
        <footnote id="F1">Pursuant to the merger agreement between the issuer, Microsemi Corporation (&quot;Microsemi&quot;) and Artful Acquisition Corp., (&quot;Artful&quot;) (the &quot;Merger Agreement&quot;), and in connection with the completion of a cash tender offer by Artful to purchase all of issuer's issued and outstanding common stock, (the &quot;Tender Offer&quot;), this option was not assumed by Microsemi and was cancelled in exchange for a cash payment to Reporting Person equal to the difference between the offer price per share of $20.88 and the exercise price per share of the option; less all applicable deductions and tax withholdings.</footnote>
        <footnote id="F2">Pursuant to the Merger Agreement and in connection with the Tender Offer, this Stock Appreciation Right (&quot;SAR&quot;) was not assumed by Microsemi and was cancelled in exchange for a cash payment to Reporting Person equal to the difference between the offer price per share of $20.88 and the exercise price per share of the SAR; less all applicable deductions and tax withholdings.</footnote>
        <footnote id="F3">Each Restricted Stock Unit (&quot;RSU&quot;) represented a contingent right to receive one share of issuer common stock.</footnote>
        <footnote id="F4">Pursuant to the Merger Agreement and in connection with the Tender Offer, this RSU was not assumed by Microsemi and was cancelled in exchange for a cash payment to Reporting Person equal to the offer price per share of $20.88 multiplied by the number of shares of issuer common stock subject to such RSU; less all applicable deductions and tax withholdings.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Barbara McArthur</signatureName>
        <signatureDate>2010-11-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
