Toshiba Selects Rambus Yellowstone Interface Solution for Memory

Yellowstone technology provides ultra high speed for next generation DRAM

LOS ALTOS , Calif., October 31, 2002 -- Rambus Inc. (Nasdaq:RMBS), the leader in chip-to-chip interface technology, and Toshiba Corporation, a world leader in semiconductors development and manufacture, today announced that Toshiba has signed a licensing agreement to incorporate Rambus' Yellowstone technology into Toshiba's high-value added DRAM products for use in next generation, high performance systems.

"The Rambus Yellowstone interface technology is a key component for us to incorporate into our advanced DRAM design," said Takeshi Nakagawa, Corporate Senior Vice President of Toshiba Corporation and President and Chief Executive Officer of Toshiba's Semiconductor Company. "Rambus has developed breakthrough interface technologies that are extremely valuable to the consumer marketplace. As the first licensee of this state-of-the-art technology, Toshiba can ensure its leading position in the industry with time-to-market introduction of high-performance memory."

Yellowstone offers a quantum leap in performance in memory signaling while lowering system cost through pin-count reduction and support for low-cost, high-volume PCBs and packages. The flexible architecture enables customized memory solutions to satisfy various market needs over the next decade, including digital consumer, networking, and graphics application.

About Rambus Inc.
Rambus is the leading developer and marketer of breakthrough chip-to-chip interface technology, products and solutions to the electronics industry. The company licenses its technology in the form of ASIC cells that are incorporated into high-performance memory and logic chips by 25 of the world's top semiconductor makers. The company's ASIC cells and system-level solutions are incorporated into hundreds of products.

About Toshiba
Toshiba Corporation is a leader in information and communications systems, electronic components, consumer products, and power systems. The company's integration of these wide-ranging capabilities assures its position as a leading company in semiconductors, displays and other electronic devices. Toshiba has 176,000 employees worldwide and annual sales of over US$40 billion. Visit Toshiba's website at http://www.toshiba.co.jp/index.htm.

Rambus is a registered trademark of Rambus Inc. Other trademarks that may be mentioned in this release are the intellectual property of their respective owners.

This press release contains forward-looking statements. These statements are based on current expectations, estimates and projections about the Company's industry, management's beliefs, and certain assumptions made by the Company's management. You can identify these and other forward-looking statements by the use of words such as "may," "will," "should," "expects," "plans," "anticipates," "believes," "estimates," "predicts," "intends," "potential," "continue" or the negative of such terms, or other comparable terminology. Forward-looking statements also include the assumptions underlying or relating to the foregoing statements. Actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including those identified in the Company's recent filings with the Securities and Exchange Commission, including its recently filed Form 10-Q, and also including the uncertainty of new technologies; and the uncertainty regarding the technical and market demands for such technologies. All forward-looking statements included in this press release are based on information available to Rambus on the date hereof. Rambus assumes no obligation to update any forward-looking statements.