Rambus DDR2 and XDR Memory Interfaces Selected by Matsushita

DDR2 and XDR interfaces provide scalable performance for broad product offering

LOS ALTOS, Calif., July 19, 2004 - Rambus Inc. (Nasdaq:RMBS), a leading developer of chip interface products and services, today announced that Matsushita Electric Industrial Co., Ltd. (NYSE: MC), commonly known by the brand name Panasonic, has selected its DDR2 and XDR memory interfaces. Under the agreement, Matsushita Electric will integrate Rambus's drop-in DDR2 interface cell into its next-generation digital television (DTV) chipsets. For higher performance and richer feature sets in a future product, Matsushita has also licensed Rambus's interface cell supporting XDR memory which provides increased memory bandwidth. Using both DDR2 and XDR interfaces enables Matsushita to deliver high-volume consumer products to the market that will span a wide range of price-performance points.

"The Rambus memory interface family provides us with flexible solutions for both high-volume applications with DDR2 DRAM and best-in-class products with XDR DRAM," said Hakuhei Kawakami, Director of System LSI Development Division at Matsushita's Semiconductor Company. "Integrating these new interface designs into our chips will further support more rapid development of leading-edge, innovative Panasonic digital products to please our customers worldwide."

Rambus is the only company to provide DDR memory controller interfaces with an optional performance mode supporting XDR DRAM, providing a two-to-eight times increase in system memory bandwidth. Using this capability, customers can develop a single chip that spans multiple price/performance points depending on which memory type is connected.

"We are pleased to be working with Matsushita Electric again supporting development of their new high-quality consumer devices," said Laura Stark, vice president of the Memory Interface Division at Rambus. "Our drop-in DDR interfaces use proven technology which allows customers to not only save development time, but also enables them to focus on the other critical portions of the chip."

Rambus DDR and XDR interfaces support a wide variety of standard CMOS processes from 0.25-micron to 65-nanometer, and are available immediately on a 0.13-micron process. Rambus memory controller interfaces for consumer and graphics applications are available now, and those for main memory applications will be available soon.

About Rambus Inc.

Rambus is one of the world's leading providers of advanced chip interface products and services. Since its founding in 1990, the company's innovations, breakthrough technologies and integration expertise have helped industry-leading chip and system companies solve their most challenging and complex I/O problems and bring their products to market. Rambus's interface solutions can be found in numerous computing, consumer, and communications products and applications. Rambus is headquartered in Los Altos, Calif., with regional offices in Chapel Hill, North Carolina, Taiwan and Japan. Additional information is available at www.rambus.com.