EXHIBIT 23
Published on May 25, 2007
Exhibit
23.1
CONSENT
OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We
consent to the incorporation by reference in the Registration Statements (Form
S-8 Nos. 33-59686, 33-80072, 33-81690, 33-83196, 333-872, 333-40791, 333-67215,
333-93571, 333-51322, 333-53876, 333-73506, 333-96791, 333-99655, 333-101696,
333-103764, 333-109486, 333-119939 and 333-140773) of Microchip Technology
Incorporated of our reports dated May 23, 2007 with respect to the consolidated
financial statements of Microchip Technology Incorporated, Microchip Technology
Incorporated management’s assessment of the effectiveness of internal control
over financial reporting, and the effectiveness of internal control over
financial reporting of Microchip Technology Incorporated, included in
this Annual Report (Form 10-K) for the year ended March 31, 2007.
/s/
Ernst & Young
LLP
Phoenix,
Arizona
May
23,
2007