News & Events
Intersil Announces New Ringing SLIC Tailored for Voice over Internet Protocol (VoIP) Applications

— Brings POTS functionality to broadband access products
– Provides high voltage ringing signals without ring generator or relay circuitry

PALM BAY, FL, March 9, 2000 – Intersil Corporation (NASDAQ: ISIL) announced today the availability of a new Ringing Subscriber Line Interface Circuit (RSLIC) that integrates voice capability for residential broadband access and enterprise data router products. When utilizing Intersil Corporation’s new RSLIC for Voice over Internet Protocol (VoIP), broadband interface designers benefit from the only single chip RSLIC to offer guaranteed 100-volt operation with low standby power at 80 milliwatts (mW).

"With the HC55185, Intersil further solidifies its position as a leading RSLIC supplier for growth applications," said Christopher Ludeman, product marketing manager at Intersil. "We allow designers a choice of standard product telephony line circuit solutions, using codecs available from multiple suppliers, thereby lowering the cost to the user."

The HC55185 RSLIC-VoIP is the latest addition to the RSLIC18TM family from Intersil. The device provides power to the phone, detects off-hook conditions and transmits the ringing signal. An integrated ringing function eliminates the necessity for the ring generators and electromechanical relays that are required with non-ringing SLICS. It meets all the requirements of the Plain Old Telephone Service (POTS) interfaces in voice and data routers, cable modems and set top boxes. The HC55185 also meets the telephony requirements for Voice over DSL access multiplexers, Wide Area Network (WAN) integrated access devices and VoIP gateway products.

The HC55185 RSLIC—VoIP comes in a number of product grades ranging from 100V supply voltage capability with 58dB longitudinal balance to 75V supply voltage capability with 53dB longitudinal balance. The device generates sinusoidal, trapezoidal and square wave ringing signals. It also features polarity reversal and a battery switch that allows for the implementation of two supply voltages so that high voltage can be utilized during ringing signal generation, and low voltage supply can be used during the speech phase of the call. As a result, the power consumed and the heat generated by the line card and router is minimized. The HC55185 also provides a number of self and loop test features such as two-wire loopback and a high voltage test access switch. These allow residential service providers, who may be providing voice over cable modem or voice over digital subscriber line (VoDSL), to perform crucial tests that help ensure maximum "up-time" for access lines.

About the RSLIC18
The RSLIC18 offers "best in class" features that greatly extend the performance and functionality of telecom line cards. The family is comprised of six devices supporting short and longer loop applications including Wireless Local Loop, Fiber-in-the-Loop, Pairgain, Integrated Services Digital Network, Private Branch eXchange, and computer and video telephony.

Pricing and Availability
The HC55185 is now available in production quantities. OEM pricing, based upon 10,000 pieces, is between $3.25 and $5.24 and depending upon product grade. For further information on this device, dial 1-888-INTERSIL ext. 7978 or visit Intersil’s Web site at www.intersil.com.

About Intersil Corporation
Intersil Corporation uses 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.

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.

RSLIC18 is a registered trademark of Intersil Corporation

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