PMC-Sierra Offers RGMII Parallel Interface in New Gigabit Transceivers

8/26/2003 - PMC-Sierra(TM), Inc. (Nasdaq: PMCS - News) introduced the 6-channel PM8373 HexPHY 1GR and 4-channel PM8363 QuadPHY® 1GR serializer/deserializer (SERDES) devices for high-speed serial backplanes and Gigabit Ethernet (GE) transceivers. The HexPHY 1GR and QuadPHY 1GR features support for the RGMII v2.0 industry standard parallel interface to enable low power, low cost and compact Ethernet-based system designs. Both devices use PMC-Sierra's proven mixed- signal technology to provide superior signal integrity performance that exceeds IEEE 802.3 Gigabit Ethernet requirements. These devices are ideal for a broad range of multi-gigabit serial connections including enterprise Ethernet switches, blade servers, access and metro transport network equipment. In addition, the devices support the growing adaptation of Gigabit serial technology into office automation, digital imaging, industrial control and avionics applications. The HexPHY 1GR and QuadPHY 1GR devices' industrial temperature ratings provide robust operation in the most challenging system environments.

RGMII Interface Reduces System Costs and Eases Migration to 10 Gigabit Ethernet
RGMII (Reduced Gigabit Media Independent Interface) v2.0 simplifies board design by reducing the number of routing layers required which also lowers board manufacturing costs. RGMII provides greater than 50 percent signal pin savings over current interface solutions (12 pins versus 25 pins for GMII). To provide flexibility for low power system design, the HexPHY 1GR and QuadPHY 1GR devices support either 1.5V and 1.8V HSTL input/output levels on the RGMII interface. In addition, the 1.5V HSTL input/output levels are upward compatible with the IEEE standard 10 Gigabit Ethernet XGMII interface, providing system designers with a seamless migration path from Gigabit Ethernet to 10 Gigabit Ethernet.

Enabling High Density Modular Line Cards
The emergence of 1000Base-T copper transceivers in Small Form-Factor Pluggable (SFP) modules enable system designers to deploy RGMII interfaces in both copper and optical line card applications. Using this approach, equipment manufacturers can develop modular GE line card solutions to address IT managers' needs for flexibility between optical and Category 5 copper cable connections thereby eliminating the need to purchase and maintain separate line cards.

"The HexPHY 1GR and QuadPHY 1GR products add support for the RGMII v2.0 interface and continues PMC-Sierra's commitment to providing customers with a broad portfolio of multi-gigabit serial solutions," said Stuart Robinson, strategic marketing and applications manager of PMC-Sierra's Enterprise and Storage Division. "These new products deliver an optimized solution for low power, low cost and small footprint Gigabit Ethernet line card and backplane designs."

Pricing, Availability and Customer Support
The HexPHY 1GR and QuadPHY 1GR devices are sampling to customers, priced at $29.90 and $21.90 for 1K quantities, respectively. Both devices are packaged in a 15 x 15 mm2, thermally enhanced 196 pin CABGA, have typical power consumption of less than 200 milliwatt per port, and are rated for operation at industrial temperature range (-40 to +85 degrees C). The devices are fabricated using the same low power, 0.18 micron CMOS process proven on multiple PMC-Sierra SERDES products. A comprehensive support product package including datasheets, application notes, device models, and evaluation system is available. Contact applications support for more information at or visit

About PMC-Sierra's SERDES Product Family
PMC-Sierra's multi-gigabit SERDES products offer superior performance, flexibility and reliability. The CMOS SERDES devices meet or exceed IEEE Gigabit Ethernet, 1 and 2G Fibre Channel, 10GE and 10GFC standards. The SERDES products are ideal for multi-gigabit serial backplane interfaces in networking, storage, computing, and wireless applications, as well as high- density GE, 10GE, Fibre Channel, and InfiniBand transceivers. PMC-Sierra's growing multi-gigabit SERDES and Retimer product portfolio includes: PM8373 HexPHY 1GR, PM8363 QuadPHY 1GR, PM8352 OctalPHY 1G, and PM8354 QuadPHY 1G, PM8356 QuadPHY FC, PM8355 QuadPHY II, PM8358 QuadPHY 10GX, PM8385 QuadPHY RT and PM8387 QuadPHY XR. For more information, visit PMC-Sierra's SERDES web portal at

About PMC-Sierra
PMC-Sierra is a leading provider of high speed broadband communications and storage semiconductors and MIPS-based(TM) processors for Enterprise, Access, Metro Optical Transport, Storage Area Networking and Wireless network equipment. The company offers worldwide technical and sales support, including a network of offices throughout North America, Europe and Asia. PMC-Sierra is included in the S&P 500 Index which consists of 500 stocks chosen for market size, liquidity, and industry group representation. The company is publicly traded on the NASDAQ Stock Market under the PMCS symbol. For more information, visit

QuadPHY is a registered trademark of PMC-Sierra, Inc. PMC-Sierra, PMC, PMCS and Thinking you can build on are trademarks of PMC-Sierra, Inc.

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