AMCC CMOS Solution Significantly Reduces Power Consumption in the OC-48 Section Terminator Transceiver.

SAN DIEGO--(BUSINESS WIRE)--Oct. 21, 1998--

Complete Chipset Integrates Four OC-12 Data

Streams to One OC-48 Optical Interface

Applied Micro Circuits Corp.,(AMCC)(R),(Nasdaq:AMCC), a leader in high-bandwidth silicon connectivity solutions, today announced the S3045, a CMOS SONET/SDH section terminator transceiver used for integrating four STS-12/STM-4 data streams into a single STS-48/STM-16 data stream.

Combined with the S3041 transmitter and S3042 receiver, the three chipset reduces power consumption by an astounding 350% over competing solutions, setting a new precedent in power reduction for OC-48 solutions. The S3041/42/45 chipset's compatibility with both off-the-shelf and proprietary solutions, guaranteed compliance with ANSI, Bellcore, and ITU-T specifications and 2.5 GHz operation make it the ideal solution for designers of both SONET/SDH-based and Wavelength Division Multiplexing (WDM) applications.

As part of the OC-48 Silicon Sonet Transport (SST)(tm) solution, AMCC's S3041 (transmitter) and S3042 (receiver) chipset adds superior jitter performance, low power consumption and superior economics to the tremendous power reduction benefits of the S3045.

"To achieve our power, price and performance design goals, we distributed functions that require high-speed bipolar process ctions into the low-power CMOS S3045. The resultto design high-speed off-the-shelf and proprietstreams between the S3041 and S3042. The attached diagram (Figure 1) illustrates a typical network application using the S3045.

To ensure communications integrity, the S3045 calculates and inserts Byte Interleaved Parity (B1). The S3045 also performs optional frame synchronous sclock synthesis, system decoupling, line loopback and diagnostic loopback functions, while the S3042 receiver chip performs all serial-to-parallel and framing functions.d SONET OC-48 interface devices, the S3041 and n release scheduled for fourth quarter CY, 1998ucture. The company utilizes its world class expertise in mixed-signal design and multiple silicon process technologies to provide high performance silicon solutions for technologies also address ATE and high-speed co For further information regarding AMCC and itsail [e-mail]; or visit our website at httpcertainties that could cause actual results to ount of customer requests for product shipments;oducts and technologies by the Company's competitors; the availability of external foundry capacity, purchase parts, and raw materials; competitive pressures on selling

acceptance of the Company's and its customer'sosed new manufacturing facility; the timing andto the use or ownership of intellectual propertyic conditions in Asia and the risk factors that are detailed in the Final Prospectus relating to the recent ng, and the Company's other filings with the Secs Corporation.