POWER OF ATTORNEY



 Know all by these presents, that the undersigned hereby constitutes and

appoints each of Steve Sanghi and Deborah L. Wussler, signing singly, the

undersigned's true and lawful attorney-in-fact to:



(1) execute for and on behalf of the undersigned Forms 3, 4, and 5 in

accordance with Section 16(a) of the Securities Exchange Act of

1934 and the rules thereunder;



(2) do and perform any and all acts for and on behalf of the

undersigned which may be necessary or desirable to complete and

execute any such Form 3, 4, or 5, complete and execute any

amendment or amendments thereto, and timely file such form with the

United States Securities and Exchange Commission and any stock

exchange or similar authority; and



(3) take any other action of any type whatsoever in connection with the

foregoing which, in the opinion of such attorney-in-fact, may be of

benefit to, in the best interest of, or legally required by, the

undersigned, it being understood that the documents executed by

such attorney-in-fact on behalf of the undersigned pursuant to this

Power of Attorney shall be in such form and shall contain such

terms and conditions as such attorney-in-fact may approve in such

attorney-in-fact's discretion.



 The undersigned hereby grants to each such attorney-in-fact full power

and authority to do and perform any and every act and thing whatsoever

requisite, necessary, or proper to be done in the exercise of any of the rights

and powers herein granted, as fully to all intents and purposes as the

undersigned might or could do if personally present, with full power of

substitution or revocation, hereby ratifying and confirming all that such

attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall

lawfully do or cause to be done by virtue of this power of attorney and the

rights and powers herein granted.  The undersigned acknowledges that the

foregoing attorneys-in-fact, in serving in such capacity at the request of the

undersigned, are not assuming any of the undersigned's responsibilities to

comply with Section 16 of the Securities Exchange Act of 1934.



 This Power of Attorney shall remain in full force and effect until the

undersigned is no longer required to file Forms 3, 4, and 5 with respect to the

undersigned's holdings of and transactions in securities, unless earlier

revoked by the undersigned in a signed writing delivered to the foregoing

attorneys-in-fact.



 IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to

be executed as of this 9th day of March, 2010.



       MICROCHIP TECHNOLOGY INC.





       /s/ Kim van Herk

       Kim van Herk, Corporate Secretary









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D. Wussler

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