ICS Helps to Break Memory Bandwidth Bottleneck, Plans New Direct Rambus Frequency Generator Chips.

VALLEY FORGE, Pa.--(BUSINESS WIRE)--Sept. 30, 1997--

Leading Supplier of PC, Workstation Clocking Solutions Will

Provide Frequency Timing Generators To Support 1.6 GB/Second

Memory Interface

Integrated Circuit Systems Inc. (NASDAQ:ICST) today announced that it will support the Direct Rambus high-bandwidth memory interface technology developed by Rambus Inc. (NASDAQ:RMBS), and will design and manufacture frequency timing generator (FTG) products for use in high-performance computers and other electronic systems using RAMBUS memory products.

ICS joined more than 15 suppliers of system memory infrastructure products to announce support for Direct Rambus technology during the Intel Developers Forum, hosted by Intel Corp. (NASDAQ:INTC). With this support, and previously announced agreements with more than a dozen leading DRAM manufacturers, the Direct Rambus technology is emerging as the next generation standard high-speed memory interface.

Capable of delivering peak single-device bandwidth of 1.6 gigabytes per second, and supporting DRAM densities from 32 Mbit through 1 Gbit, Direct Rambus technology provides a stable memory platform for high-performance computers well into the next century.

"The Direct Rambus Channel builds on the success of Rambus in establishing the industry's preferred solution to memory bandwidth limitations in high-performance computers and personal electronics products," said Greg Richmond, vice president of the FTG Business Group at Integrated Circuit Systems. "ICS, which has already demonstrated the ability to operate PLL circuit designs at Gigahertz speeds, will provide a family of clock generators for PC and workstation designs, as well as other future digital electronic systems that utilize Direct RAMBUS technologies."

"Clock solutions from ICS are already part of the Rambus high-speed memory interface infrastructure," said Subodh Toprani, vice president of Rambus Inc. "With its support for Direct RDRAM devices, ICS will continue to play an important role in enabling high-performance system designs for computers and advanced, multimedia products."

ICS already provides 300 MHz clock chips supporting Rambus' memory interface systems and plans to introduce 400 MHz clocks to support the higher-performance Direct Rambus technology. The Rambus architecture transfers data on both rising and falling edges, achieving data rates twice as fast as the clock speed. With its expertise in phase-locked loop (PLL) and high-speed CMOS process technologies, ICS is well positioned to provide FTGs that meet the precise timing requirements of the 800 MHz Direct Rambus Channel today, and Gigahertz performance in the future.

ICS Inc. is headquartered in Valley Forge, with west coast design and engineering operations in San Jose, Calif., and a product test and distribution center in Singapore. The company is a leading supplier of Fast Ethernet ICs and frequency timing generators for digital systems, including computers and data storage devices. ICS's customer list includes major worldwide vendors of networking, personal computer and new digital products. ICS applies its expertise in CMOS-process mixed signal integrated circuit design to provide solutions used by the world's leading manufacturers of computer and data communications products. More information is available on the company's web site, at http://www.icst.com .

CONTACT: Integrated Circuit Systems Inc.

Victor Herrick, 408/271-2510

or

FS Communications

Matt Schmidt/Joe Fowler, 650/691-1488