IDT Selects Rambus PCI Express Serial Interfaces For Its Family Of Bridging And Switching Solutions

Rambus chosen for its ability to enable quality solutions at an accelerated time to market

Los Altos, CA - April 20, 2005 –   Rambus Inc. (Nasdaq:RMBS), one of the world's premier technology licensing companies specializing in high-speed chip interfaces, today announced that IDT™(Integrated Device Technology, Inc.; Nasdaq: IDTI), a leading communications IC company, has licensed Rambus's PCI Express* serial link interface PHYs for its PRECISE switching and bridging solutions optimized for server and storage applications.

"Nearly twelve months ago, we announced our entry into the PCI Express marketplace," said Mario Montana, director of marketing for the serial-switching division at IDT. "Licensing Rambus's proven serial I/O IP enabled us to focus on other core design issues, while leveraging their off-the-shelf solution to accelerate the introduction of our family of PCI Express products. We are pleased to have collaborated with Rambus for this first family of PCI Express products, and as a result, look forward to satisfying our customers' stringent performance and time-to-market requirements."

A member of the Rambus RaSer™ serial link interface family, the Rambus PCI Express serial interface is a complete serial communication cell 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. The PHYs are shipping on multiple foundry and captive processes and are available at process nodes ranging from 180nm to 65nm. 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.

"IDT has an aggressive plan to offer a family of PCI Express-based bridging and switching products," said Jean-Marc Patenaude, director of marketing at Rambus. "Rambus's extensive experience in the development of high volume, high speed I/Os and our comprehensive suite of support services help IDT to provide optimized system solutions to its customers."

The Rambus RaSer family of serial link interfaces offers designers scalable serial link architectures proven in volume production and is optimized to address current and future serial link systems applications requiring the highest bandwidth and channel count on a single chip. The RaSer serial link interfaces have been implemented across a variety of computing, consumer and communication systems, including networking switch backplanes, Gigabit and 10-Gigabit Ethernet interfaces, numerous PCI Express applications, 1/2/4 Gbps Fibre Channel systems, other fiber-optic network interfaces, as well as several custom high-speed chip interface applications. The RaSer cells are delivered with a complete set of design and integration tools for layout, verification, signal integrity and timing analysis. Rambus also provides consulting services for integration of the cell in the customer's silicon. System level consulting services are also available to address all aspects of signal and system integrity. For more information about Rambus's family of serial link products, please visit www.rambus.com/products.

About IDT

> IDT is a global leader in preemptive semiconductor solutions that accelerate packet processing for advanced network services. IDT serves communications equipment vendors by applying its advanced hardware and software technologies to create flexible, highly integrated solutions that enhance the functionality and processing of network equipment. IDT accelerates intelligent packet processing with products such as switching and bridging solutions, network search engines (NSEs), flow-control management (FCM) ICs and its family of Interprise™ integrated communications processors. 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.

Currently headquartered in Santa Clara, Calif., the company employs approximately 3,000 people worldwide and has a wafer manufacturing facility in Oregon, and test and assembly facilities in the Philippines and Malaysia. IDT stock is traded on the Nasdaq Stock Market® under the symbol "IDTI." The company is included in the S&P 1000, which is a combination of the S&P MidCap 400 and S&P SmallCap 600 Indices, and is also part of the S&P SuperComposite 1500, which combines the S&P 500, MidCap 400, and SmallCap 600. Additional information about IDT is accessible at www.IDT.com. >

About Rambus Inc.

Rambus is one of the world's premier technology licensing companies specializing in the invention and design of high-speed chip interface. 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; Bangalore, India; Taipei, Taiwan; and Tokyo, Japan. Additional information is available at www.rambus.com.

*PCI Express is a trademark of PCI-SIG.

Rambus and the Rambus logo are registered trademarks of Rambus Inc. RaSer is a trademark of Rambus Inc.

IDT, Interprise and the IDT logo are trademarks of Integrated Device Technology, Inc. Other brands, product names and marks are trademarks, registered trademarks, or trade names of their respective owners.