Integrated Circuit Systems Conference Call Alert

Business Wire, Jan 3, 2005

NORRISTOWN, Pa. -- Integrated Circuit Systems, Inc. (NASDAQ:ICST)

What:                   Q2 FY 2005 EARNINGS RESULTS

                        Hock Tan, President/CEO and Justine Lien, Vice
                        President/CFO will host a conference call to
                        discuss Q2 FY2005 beginning at 9:30 AM
                        (eastern time), followed by a question and
                        answer session concerning the release.

When:                   Friday, January 21, 2005

Time:                   9:30 AM Eastern Time

Toll Free Dial In:      1-877-405-3430

International Dial In:  706-634-6397

Conference ID:          2985136

Leader's Name:          Hock Tan

Replay #:               1-800-642-1687 / Access Code 2985136

International Replay #: 706-645-9291 / Access Code 2985136

Internet Access:        www.icst.com click on the investors tab then
                        on the calendar of events tab to register for
                        the event.  If you are unable to listen to the
                        live webcast, the call will be archived on the
                        Company's website at www.icst.com  (Minimum
                        requirements to listen to broadcast:  The
                        RealPlayer software, downloadable free from
                        www.real.com/products/player/index.html, and
                        at least a 14.4 kbps connection to the
                        internet.)

NOTE:                   Replay of call will be available from 10:30 AM
                        (eastern time), Friday, January 21st until
                        midnight, Thursday, January 27th.

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.