FOR MORE INFORMATION:

Laurie Falconer
Centillium Communications, Inc.
(510) 771-3647
[email protected]

 

CENTILLIUM COMMUNICATIONS INTRODUCES FULL RATE ANNEX C ADSL

Chipset Launches Japan's Full Rate ADSL Market

FREMONT, Calif., September 5, 2000 - Centillium Communications, Inc. (Nasdaq:CTLM), innovator of broadband communications technology, announced today availability of Full Rate Annex C Asymmetric DSL (ADSL) chipsets for use in Central Office (CO) and Customer Premise Equipment (CPE) for Japan. Centillium's CopperFlite and Universal Flite Optimizer Chipsets for Full Rate ADSL Annex C are the first chipsets utilized by the Japanese market for both CO and CPE.

Centillium's chipsets are the industry's first and only to conform to the ADSL G.dmt (ITU-T G.992.1) Annex C standard. Annex C addresses the unique characteristics of Japanese copper loop plants consisting of copper wires with pulp insulation. This type of wiring creates very challenging technical issues for ADSL in order to co-exist with Japanese Integrated Services Digital Network (ISDN). Centillium's Annex C implementation supports both FBM (Far End Cross Talk Bit-Map) and DBM (Dual Bit-Map) implementations for handling ISDN cross-talk noise - a feature specifically requested by CLECs in Japan and required by NTT. As the only ADSL chipset vendor with both FBM and DBM technology, Centillium is able to offer full downstream data rates of 8Mbps and upstream rates of up to 1Mbps.

"Since early 1999, network equipment makers in Asia have chosen Centillium's CopperLite chipset. It is the only ADSL solution that has been deployed by NTT and CLECs in Japan, both on the CO and the CPE sides of the network", said Al Gharakhanian, director of network access products, Centillium Communications, Inc. "With the addition of the Annex C Full Rate ADSL solutions, our customers are now able to provide the higher bit rate services demanded by some of their clients."

Centillium's Chipsets for Full Rate ADSL Annex C

Centillium's CopperFlite CO chipset is a fully programmable multi-mode ADSL transceiver that consumes less than 1 watt of power. CopperFlite uses just two chips to deliver all of the integrated silicon and software needed to design low-power ADSL line cards with four ports.

Centillium's Universal Flite Optimizer CPE chipset delivers a complete multi-mode ADSL modem with just two chips, significantly reducing the form factor, power usage, component count, and bill of material costs normally associated with broadband access devices. The Optimizer chipset features highly integrated Universal Serial Bus (USB) and Peripheral Component Interconnect (PCI, Mini PCI, and CardBus) interfaces.

About Centillium Communications

Centillium Communications, Inc. is combining technical innovation and customer commitment to make broadband communications a mass-market reality. Centillium consistently delivers value to its customers by providing broadband networking systems for applications across all market segments. The company designs and markets communications chipset solutions for central office equipment, DLC line cards, and customer premise equipment for Digital Subscriber Line (DSL), home networking and Voice-over-Packet. Centillium Communications, Inc. is located at 47211 Lakeview Blvd., Fremont, CA 94538. Additional information is available at www.centillium.com

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Statements Looking Forward

Except for historical information contained in this press release, the foregoing contains forward-looking statements that involve risks and uncertainties. Actual results may differ materially from those indicated by such forward-looking statements based on a variety of risks and uncertainties, including the risks and uncertainties relating to actual quantities and timing of any orders received under the contract and the successful development and market acceptance of Centillium's new products. Information about potential factors that could affect Centillium's financial results is included in Centillium's prospectus and will be included in Centillium's Annual Report on Form 10-K and Quarterly Reports on Form 10-Q, which will be filed with the Securities and Exchange Commission.

Copyright 2000 Centillium Communications, Inc. CopperFlite is a trademark of Centillium Communications, Inc. All other products or service names mentioned herein are the property of their respective owners.

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