Integrated Circuit Systems, Inc. has purchased 2,475,000 shares under this program through today and continues to purchase shares under this program.

About ICS

Integrated Circuit Systems, Inc. is a leader in the design, development and marketing of silicon timing devices for communications, networking, computing and digital multimedia applications. The Company is headquartered in Norristown, PA, with key facilities in San Jose, CA; Tempe, AZ; Worcester, MA and Singapore.

Statements included in this release, to the extent they are forward looking, involve a number of risks and uncertainties related to competitive factors, technological developments and market demand. Further information on these and other potential factors that could affect the Company’s financial results can be found in the Company’s Form 10-K filed on September 16, 2004.