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National Semiconductor Delivers Highly Integrated, Dual-Port Gigabit Ethernet Transceiver to Enable End-to-End Network Solutions

National's Third-Generation Gig PHYTER? Enables Low-Cost, High-Density Gigabit Ethernet Solutions

Dec 21, 2000

December 21, 2000 - Strengthening its position as the leading enabler for driving Gigabit to the desktop, National Semiconductor Corporation (NYSE:NSM) today announced a low-cost, highly integrated dual-port 10/100/1000 physical layer transceiver.  This new solution, now shipping to key customers, provides the lowest cost per port, Gigabit over copper physical layer solution.  With its very low power consumption and high performance, the DP83862 Dual Gig PHYTER? is ideal for such applications as high-density Gigabit switches, Dual port Gigabit node cards, and high-speed uplinks.  Together with National's industry-leading 10/100/1000 Gigabit over copper network interface card (NIC) reference design, this new Gigabit over copper transceiver has put National at the forefront to deliver a complete end-to-end network solution. http://networks.national.com

The DP83862 Dual Gig PHYTER is National's third-generation, full-feature physical layer transceiver with integrated PMD sub layers to support 10BASE-T, 100BASE-TX and 1000BASE-T Ethernet protocols.  Based on a field proven architecture, the DP83862 Gig PHYTER is manufactured on the company's state-of-the-art 0.18-micron CMOS technology, providing the highest level of integration at a very low power consumption.  This also provides National's customers with an ease of mind regarding availability and meeting their expected cycle time requirements including the unexpected upsides.

"With the introduction of the DP83862 Dual Gig PHYTER, National now becomes the only vendor who is able to provide an end-to-end network solution with the optimal combination of price, performance and power consumption," said Gobi Padmanabhan, senior vice president of Network Products group at National Semiconductor.  "With a roadmap that continually offers improvements on all of the network applications our customers care about, it is clear that National is committed to driving Gigabit to the desktop."

The DP83862 Gig PHYTER is the industry's first to provide PHY level cyclical redundancy checking (CRC), on received packets and PHY level CRC generation for test mode transmit packets.  It supports JPAG, and Auto media dependent interface crossover (Auto-X) that automatically detects and corrects wiring mishandling such as swapped wires in addition it also provides for and automatically corrects reversed polarity.

The DP83862 is designed for easy implementation of 10/100/1000 Mbps Ethernet LAN Switches.  Each of the two ports interfaces directly to Twisted Pair media via an external transformer.  This device interfaces directly to the media access controller (MAC) layer through the IEEE 802.3u Standard Media Independent Interface (MII) of the IEEE 802.3u Gigabit Media Independent Interface (GMII).  It also supports the reduced pin count serial GMII (SGMII) interface with eight pins per port. 

Major features of the DP83862 Dual Gig PHYTER includes: single Quad TX-Transformer interface for all speeds; adaptive equalization and Baseline Wander compensation; IEEE 802.3u Auto-Negotiation and parallel detection; 3.3 v/1.8 v MAC interfaces; LED support; management register set; acceptance of 125 MHz or 25 MHz clock input, among others. 

Packaging and Availability
Offered in 432-pin EBGA package, National Semiconductor's DP83862 Dual Gig PHYTER is now sampling to key customers.  

About National Semiconductor
National Semiconductor provides system-on-a-chip solutions for the information age. Combining real-world analog and state-of the-art digital technology, the company's chips lead many sectors of the personal computer, communications, and consumer markets. With headquarters in Santa Clara, California, National reported sales of $2.1 billion for its last fiscal year and has about 10,500 employees worldwide. Additional Company and product information is available on the World Wide Web at www.national.com