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, in the

undersigned's capacity as an officer and/or director of Microchip

Technology Incorporated (the "Company"), 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, nor is the Company 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 issued by the Company, 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 2nd day of January , 2009.





/s/ J. Eric Bjornholt

Signature



J. Eric Bjornholt

Print Name