Rambus PCI Express PHY Passes Standard Compliance Testing; Silicon-Proven IP Achieves Five Entries on PCI-SIG Integrators List

LOS ALTOS, Calif., Jun 02, 2005 (BUSINESS WIRE) -- Rambus Inc. (Nasdaq:RMBS), one of the world's premier technology licensing companies specializing in high-speed chip interfaces, today announced that its PCI Express(1) PHY intellectual property (IP) has achieved the necessary PCI Special Interest Group (PCI-SIG) compliance testing with five entries on the PCI-SIG Integrators List. This accomplishment makes Rambus's PCI Express PHYs the most widely compliance-tested PCI Express PHYs available today. The PCI-SIG is the special interest group that owns and manages PCI specifications as open industry standards. The PCI-SIG Integrators List includes all products that have successfully completed the rigorous testing procedures of the PCI-SIG Compliance Workshop.

"Appearing multiple times on the PCI-SIG Integrators List is a significant milestone to reach, as it demonstrates the versatility our PHYs have as they work in conjunction with our customers' platforms to ensure the highest level of compatibility," said Jean-Marc Patenaude, director of marketing for the Platform Solutions Group at Rambus. "Our customers rely on PHYs that work seamlessly with other components in a manner that allows them to get their products to market quickly."

Rambus PCI Express PHYs have passed PCI-SIG compliance and interoperability testing by Rambus digital controller partners such as Cadence Design Systems, Inc., Mentor Graphics Corporation and Zuken Inc., as well as Rambus's PCI Express SerDes IP customer PLX Technology Inc. The complete Rambus solution consists of the Rambus PCI Express PHY and the PCI Express Digital Controller IP acquired by Rambus from GDA Technologies, Inc. in April.

Rambus PCI Express PHYs are complete serial communication cells optimized for implementing the physical layer of the PCI Express standard. The silicon-proven serial interfaces feature point-to-point, full duplex signaling and support up to a 3.2Gbps data rate. Rambus has also demonstrated its Turbo PCI Express platform with serial links operating at 5.0Gbps and 6.25Gbps data rates to meet future PCI Express requirements.

The Rambus PCI Express PHY design is available on multiple foundry and captive processes at process nodes ranging from 180nm to 65nm. The PHYs are in production in high-volume applications such as PC graphics, chipsets, switch and bridge chips, and supported by a comprehensive suite of digital controllers and support services to provide chip developers with a complete system solution. For more information on Rambus's broad PCI Express offering, visit www.rambus.com/products/pciexpress.

About Rambus Inc.

Rambus is one of the world's premier technology licensing companies specializing in the invention and design of high-speed chip interfaces. 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, California, with regional offices in Chapel Hill, North Carolina; Bangalore, India; Taipei, Taiwan; and Tokyo, Japan. Additional information is available at www.rambus.com

(1) PCI Express is a trademark of PCI-SIG;

Rambus and the Rambus logo are registered trademarks of Rambus Inc. All other trade names are the service marks, trademarks, or registered trademarks of their respective owners.

SOURCE: Rambus Inc.