TranSwitch Licenses RaSer Serial Link Technology from Rambus Inc.

LOS ALTOS, Calif.--(BUSINESS WIRE)--Nov. 5, 2001--Rambus Inc. (Nasdaq:RMBS - news) today announced that TranSwitch Corporation (Nasdaq:TXCC - news) has licensed RaSer(TM) serial link cell for integration into its Sertopia(TM) device, a single chip solution for broadband communication systems such as high-end network routers, relay switches and ATM internetworking equipment.

TranSwitch's Sertopia device connects two remote UTOPIA ports transparently across a high-speed serial link. Integration of the RaSer cell into the Sertopia device enables transfer of cell, packet and UTOPIA interface information at 1.25 Gigabits per second (Gbps) full duplex. In addition, the RaSer cell provided the ability to reliably extend the transfer of data between two UTOPIA interfaces up to ten meters apart.

"Rambus is the leading IP provider of serial link cell technology," stated Dave DiOrio, vice president of Engineering and R&D at TranSwitch Corporation. "The integration of the RaSer cell in the Sertopia transceiver provides a simple, single chip solution supporting the development of cost-effective, high-performance systems. The scaleable RaSer technology will help to address next generation speed and interconnect requirements."

"TranSwitch offers leadership backplane components for the fast growing communications access markets," said Kevin Donnelly, vice president of the Network Connections Division at Rambus Inc. "The Sertopia product takes advantage of RaSer technology performance and will meet TranSwitch's OEM system interconnect and speed requirements."

RaSer(TM) Cell Technology

Rambus RaSer technology offers designers a scalable serial link architecture that addresses current and future serial link applications requiring the highest bandwidth. RaSer technology can be employed across a variety of different networking applications, including WAN router and switch backplanes, Gigabit and 10-Gigabit Ethernet, InfiniBand, Fibre Channel, and fiber optic network interfaces and any other custom chip-to-chip applications.

Rambus RaSer cells are offered as an analog core library cell, for ASIC and ASSP designs. A complete serial link solution, the RaSer cell contains serializer, transmitter, receiver, deserializer, and clock recovery circuitry. The cell is designed to meet the physical layer requirements for a wide range of serial link applications, each of which may have different logical requirements (protocol, framing, coding, etc.). As a replacement to stand-alone discrete serial link components, the RaSer cell may be integrated with other communications functions in order to offer higher value network services and reduced component count.

For more information on RaSer technology, visit Rambus' web site at http://www.rambus.com/technology/raser_overview.html

About TranSwitch Corporation:

TranSwitch Corporation, headquartered in Shelton, Connecticut, is a leading developer and global supplier of innovative high-speed VLSI semiconductor solutions -- Connectivity Engines (TM) -- to original equipment manufacturers who serve three fast-growing end-markets: the Worldwide Public Network Infrastructure, the Internet Infrastructure, and corporate Wide Area Networks (WANs). Combining its in-depth understanding of applicable global communication standards and its world-class expertise in semiconductor design, TranSwitch Corporation implements communications standards in VLSI solutions that deliver high levels of performance. Committed to providing high-quality products and service, TranSwitch is ISO 9001 registered. Detailed information on TranSwitch products, news announcements, seminars, service and support is available on TranSwitch's home page at the World Wide Web site -- http://www.transwitch.com.

About Rambus Inc.

Rambus Inc. (Nasdaq:RMBS - news) designs, develops and licenses high-bandwidth chip-connection technology, and provides the comprehensive engineering support necessary for a complete system solution. Rambus' technology and intellectual property are licensed to leading semiconductor suppliers, including DRAM, controller and microprocessor manufacturers, ASIC developers, and foundries for use in computer, consumer and networking systems such as personal computers, workstations, servers, game consoles, set top boxes, digital HDTVs, high-speed switches and routers.

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

Contact:
     Rambus
     Kristine Wiseman, 650/947-5319
     pr@rambus.com
      or
     TranSwitch Corporation
     Mary Lombardo, 203/929-8810 Ext. 2254
     mary@txc.com