Federal Trade Commission Terminates HSR Waiting Period for IDT and ICS Merger

Integrated Device Technology, Inc. ("IDT")(Nasdaq:IDTI)
and Integrated Circuit Systems, Inc. ("ICS")(Nasdaq:ICST) have been
notified by the Federal Trade Commission that the FTC has terminated
the waiting period under the Hart-Scott-Rodino Antitrust Improvements
Act of 1976, as amended, relating to their pending merger. The parties
anticipate that the transaction will close in the fall of calendar
year 2005, subject to approval by IDT and ICS stockholders and the
satisfaction of other closing conditions.

   About IDT

   IDT is a global leader in semiconductor solutions for advanced
network services. IDT serves communications equipment vendors by
applying its advanced hardware, software and memory technologies to
create flexible, highly integrated products that enhance the
functionality and processing of network equipment. IDT accelerates
innovation with products such as network search engines (NSEs),
flow-control management (FCM) ICs and its commitment to and products
for standards-based serial switching. The portfolio also comprises
products optimized for communications applications, including telecom
products, FIFOs, multi-ports, and timing solutions. In addition, the
product mix includes high-performance digital logic and high-speed
SRAMs to meet the requirements of leading communications companies.

   About ICS

   ICS is a world leader in the design, development, and marketing of
silicon timing devices for communications, networking, computing, and
digital multimedia applications. ICS is headquartered in Norristown,
PA, with key facilities in San Jose, CA; Tempe, AZ; Worcester, MA; and
Singapore. For more information, visit the company's web site at:
http://www.icst.com.

   Safe Harbor Statement

   This release contains, in addition to statements of historical
fact, certain forward-looking statements. These forward-looking
statements relate to the proposed merger and the combined company and
involve risk and uncertainty. Actual results could differ from those
currently anticipated due to a number of factors, including those
mentioned in documents filed with the SEC by both IDT and ICS.
Forward-looking statements are based on information available to
management at the time, and they involve judgments and estimates.
There can be no assurance as to the timing of the closing of the
merger, or whether the merger will close at all, or that the expected
synergies and cost savings will be realized. Factors that could cause
results to differ from expectations include: the failure of IDT and
ICS stockholders to approve the transaction; the risk that the
businesses will not be integrated successfully; the risk that the cost
savings and any other synergies from the transaction may not be fully
realized or may take longer to realize than expected; disruption from
the transaction making it more difficult to maintain relationships
with customers, employees or suppliers; transaction costs; the level
of market demand for the products of the companies; competitive
pressures; economic conditions in the U.S. and other countries where
the companies operate; information technology spending; technological
obsolescence; industry competition; and other specific factors
discussed in IDT's and ICS's most recent Annual Reports on Form 10-K
and IDT's and ICS's Quarterly Reports on Form 10-Q and Current Reports
on Form 8-K. IDT and ICS assume no responsibility to update any
forward-looking statements as a result of new information or future
developments.

   Additional Information And Where To Find It

   IDT has filed a registration statement on Form S-4, and IDT and
ICS have filed a related joint proxy statement/prospectus, in
connection with the merger transaction involving IDT and ICS.
Investors and security holders are urged to read the registration
statement on Form S-4 and the related joint proxy/prospectus because
they contain important information about the proposed merger.
Investors and security holders may obtain free copies of these
documents and other documents filed with the SEC at the SEC's web site
at www.sec.gov. In addition, investors and security holders may obtain
free copies of the documents filed with the Securities and Exchange
Commission by IDT by contacting IDT Investor Relations. Investors and
security holders may obtain free copies of the documents filed by ICS
by contacting ICS Investor Relations.
   IDT, ICS and their respective executive officers and directors may
be deemed to be participants in the solicitation of proxies from their
respective stockholders with respect to the proposed transaction.
Information about the directors and executive officers of IDT and
their ownership of IDT shares is set forth in the proxy statement for
IDT's 2005 annual meeting of stockholders. Information about the
directors and executive officers of ICS and their ownership of ICS
stock is set forth in the proxy statement for ICS's 2004 annual
meeting of stockholders. Investors may obtain additional information
regarding the interests of such participants by reading the joint
proxy statement/prospectus.
   This communication shall not constitute an offer to sell or the
solicitation of an offer to buy securities, nor shall there by any
sale of securities in any jurisdiction in which such solicitation or
sale would be unlawful prior to registration or qualification under
the securities laws of such jurisdiction.