AMCC's Potomac Delivers Outstanding Mixed-Signal Integration; Single-Chip Offers Low Power, Low Cost and Small Form Factor For OC-48c ATM and Packet-Over-Sonet Applications.Business Editors/High-Tech Writers NOTE TO MEDIA: A photo is available in a Smart News Release(TM) on Business Wire's Home Page at www.businesswire.com and at www.newstream.com SAN DIEGO--(BUSINESS WIRE)--March 18, 2002 Company's Leading IC Technology Expertise Demonstrated By Latest Device's Excellent Performance And Dramatic Reductions In Board Space, Power And Cost In A Proven Third Generation Design Applied Micro Circuits Corp. (AMCC AMCC Applied Micro Circuits Corporation AMCC Air Mobility Control Center AMCC Ashore Mobile Contingency Communications AMCC Advanced Materials Commercialization Center AMCC allied movement coordination center (US DoD) ) (Nasdaq:AMCC), today announced the availability of Potomac (S4808PBI PBI protein-bound iodine. PBI abbr. protein-bound iodine PBI, n See iodine, protein-bound. PBI protein-bound iodine. ), a highly-integrated single-chip OC-48c SONET/SDH Framer/POS-ATM Mapper with integrated clock recovery (CDR (1) See CD-R and extension. (2) (Call Detail Reporting) See call accounting. (3) (Common Data Rate) A standard sampling rate for digital video for 480i and 576i systems. The rate is 13.5 MHz. See ITU-R BT. ) and clock synthesis (CSU See DSU/CSU. 1. CSU - California State University. 2. CSU - Cleveland State University. 3. CSU - Channel Service Unit. ). Potomac's high level of integration offers a significant reduction in board real estate compared to existing solutions. AMCC's commitment to providing high-levels of functionality is again realized by the device's ability to provide full-duplex mapping of HDLC (High-level Data Link Control) A data link protocol from ISO for point-to-point communications over serial links. Derived from IBM's SDLC protocol, HDLC has been the basis for numerous protocols including X.25, ISDN, T1, SS7, GSM, CDPD, PPP and others. encapsulated packets or ATM cells into SONET/SDH payloads for OC-48 data streams. In addition, a Direct Map Mode is available for clear-channel mapping directly into the SPE SPE - Software Practice and Experience for Ethernet over SONET (EOS Eos (ē`ŏs), in Greek religion and mythology, goddess of dawn; daughter of the Titans Hyperion and Theia. Every morning she arose early and preceded her brother Helios into the heavens. ) applications. Building upon AMCC's success with both the Yukon and Amazon solutions, Potomac offers a proven and reliable third generation single device solution. When combined with AMCC's single-chip OC-48c network processor (nP7250) and 10Gbps Traffic Management chipset (nPX5700), it provides a unified fiber-to-fabric for IP router or ATM switch applications. "Potomac yet again proves AMCC's expertise in mixed-signal designs at multi-gigabit rates by combining an integrated SERDES See serializer/deserializer. and CDR with standards compliant jitter tolerance in a single device while offering low power, low cost and small form factor," said Mark Boone, product marketing manager, framer-layer products division at AMCC. "Potomac joins AMCC's portfolio of leading edge data framers to help customers build low power, small form factor systems," said Amit Banerjee, director of marketing for framer products at AMCC. "AMCC can offer complete solutions to customers for all their SONET/SDH framer requirements." Utilizing only two watts of power, Potomac enables direct connection to optical transceivers via serial differential CML 1. CML - A query language. ["Towards a Knowledge Description Language", A. Borgida et al, in On Knowledge Base Management Systems, J. Mylopoulos et al eds, Springer 1986]. 2. CML - Concurrent ML. interface at 2.48832 Gbps, while also enabling the integration of OC-48 CDR, SERDES with excellent jitter tolerance. The device terminates and generates OC-48c SONET/SDH section, line and path layers with transport/section overhead serial interfaces in both transmit and receive directions. Potomac's flexible functionality offers full duplex mapping of HDLC encapsulated packets, ATM cells, or direct clear channel mapping into SONET/SDH payloads. Potomac offers a SPI-3/Utopia-L3 compliant 32-bit parallel interface, operating at 100 MHz (MegaHertZ) One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1 MHz) means some number of bits (16, 32, 64, etc. on the system side, and imparts a low-cost, low power mapping solution that will offer high reliability, lower board debug and easier control of EMI (ElectroMagnetic Interference) An electrical disturbance in a system due to natural phenomena, low-frequency waves from electromechanical devices or high-frequency waves (RFI) from chips and other electronic devices. Allowable limits are governed by the FCC. for SONET, Packet HDLC and ATM processing. Implemented in 2.5V/1.8V .18 micron CMOS (Complementary Metal Oxide Semiconductor) Pronounced "c-moss." The most widely used integrated circuit design. It is found in almost every electronic product from handheld devices to mainframes. technology, this single-chip solution provides a fully integrated, highly reliable and proven third generation design with outstanding jitter tolerance and low power. To simplify board design, Potomac is available in a 25x25 mm 575 FC-PBGA, reducing the amount of board space required by being the smallest form factor device of its kind. Pricing and Availability Potomac is currently sampling to development partners and is priced at $199 in volume. Datasheets, simulation models, software models, recommended layout schematics and evaluation platforms are currently available. High-level software support is provided through Nakra Labs Inc. About AMCC AMCC designs, develops, manufactures, and markets high-performance, high-bandwidth silicon solutions empowering intelligent optical networks. AMCC utilizes a combination of digital, mixed-signal and high frequency analog design expertise coupled with system-level knowledge and multiple silicon process technologies to offer integrated circuit products that enable the transport of voice and data over fiber optic networks. The company's system solution portfolio includes switch fabric, traffic management, network processor, framer/mapper, PHY See physical layer and physical. and PMD (Polarization Mode Dispersion) The type of dispersion that occurs in singlemode fiber due to a lack of perfect symmetry in the fiber and from external pressures on the cable. Light travels over singlemode fiber in two polarization states. devices that address the high-performance needs of the evolving intelligent optical network. AMCC's corporate headquarters and wafer fabrication facilities are located in San Diego. Sales and engineering offices are located throughout the world. For further information regarding AMCC, please visit our Web site at http://www.amcc.com. Forward-Looking Statements The statements contained in this press release that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Such forward-looking statements, including statements relating to the products discussed in this press release are subject to a number of risks and uncertainties, including the risk that the products would not be successfully or timely, developed or manufactured or achieve market acceptance, risks relating to general economic conditions, as well as the risks and uncertainties set forth in the company's Annual Report on Form 10-K for the year ended March 31, 2001, and in other filings of the company with the Securities and Exchange Commission. As a result of these risks and uncertainties, actual results may differ materially from these forward-looking statements. The forward-looking statements contained in this news release are made as of the date hereof and AMCC does not assume any obligation to update any forward-looking statement. Product photos, datasheets and application notes are available upon request. AMCC is a registered trademark of Applied Micro Circuits Corp. 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