Press Releases
Intersil’s RSLIC18™ Family Puts the Voice into Copper Mountain’s New VoDSL Product

HC55185 RSLIC Provides Low Power, Cost-Efficient Voice over DSL Interface

PALM BAY, FL — April 24, 2000 — Intersil Holding Corporation (NASDAQ: ISIL), a leading developer of silicon technology for integrated communications applications, announced today that its HC55185 has been selected by Copper Mountain Networks, Inc. (Nasdaq: CMTN) for use in its CopperRocket^® 408 Symmetric DSL (SDSL) Integrated Access Device (IAD).

The CopperRocket 408 SDSL IAD delivers multiple simultaneous services — eight voice lines plus high-speed data over a single-pair, conventional copper telephone line via digital subscriber line (DSL) — offering businesses, remote offices, and teleworkers a cost-effective alternative for toll-quality, multi-line voice and high-speed broadband services.

" The Voice over DSL (VoDSL) market is expected to grow from just over a million dollars this year to almost $2 billion by 2004. The fact that Copper Mountain selected our ringing subscriber line interface circuits (RSLIC) reinforces our commitment to supply innovative products in support of leading-edge communications products," said John Krehbiel, vice president of Intersil’s Signal Processing Products. "The advanced design of the HC55185 will enable the development of high performance communications products in support of this very exciting emerging market."

The HC55185 is a member of the Intersil RSLIC18™ family of products, which is used in remote subscriber units. The HC55185 is a high quality, cost-effective voice interface solution that uses the lowest power and provides the longest ringing loop range with minimal board space area in communications products. It is the only single chip RSLIC that combines guaranteed 100V operation with low 80mW standby power and low active power consumption in a non-proprietary solution. With the high operating voltage, subscriber loop lengths can be extended to 5,000 feet and beyond.

There are five product offerings of the HC55185 that provide high battery voltage grading options for applications over longer distances, longitudinal balance for enhanced voice clarity, and temperature ranges that meet commercial or industrial standards. The voltage feed amplifier design uses low fixed loop gains to achieve high analog performance with low susceptibility to system induced noise. In addition to VoDSL, the HC55185 is used in Voice Over Internet Protocol (VoIP), Cable Modems, Short Loop Access Platforms, Remote Subscriber Units and Terminal Adapters.

About Intersil
Intersil uses its semiconductor expertise to enable highly integrated voice, data and video communications. Intersil's integrated communications portfolio includes PRISM^® Wireless Local Area Network (WLAN) chip sets that enable mobile connectivity products for the home and office; analog, mixed-signal and digital integrated circuits for broadband access to wireless and wired Wide Area Networks (WANs); and power management products that enable 24x7 reliability in network servers, next generation PCs and information appliances. For more information about Intersil, visit the company's Internet homepage at www.intersil.com.

PRISM is a registered trademark of Intersil Corporation.
RSLIC18 is a registered trademark of Intersil Corporation.
Copper Mountain, CopperRocket^®, and all Copper Mountain product names are trademarks of Copper Mountain Networks, Inc.

This press release contains information relating to forecasted results of Intersil, including certain projections and business trends, that are forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from these forward-looking statements as a result of certain risks and uncertainties. These risks and uncertainties include, but are not limited to global and market conditions as well as other risks and uncertainties detailed from time to time in Intersil's filings with the Securities Exchange Commission. These forward-looking statements are made only as of the date of this press release and Intersil undertakes no obligation to update or revise the forward-looking statements, whether as a result of new information, future events, or otherwise. Specific risk factors can be found in Intersil’s filings with the Securities and Exchange Commission.

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