SUNNYVALE, Calif. -- February 25, 2003 -- As industry-wide adoption of broadband connectivity continues, the Electronic Device Group of Mitsubishi Electric & Electronics USA, Inc., today announced an 18-megabit (Mbit) SigmaRAM™ Network SRAM that achieves a 350-MHz clock speed and offers a 72-bit bus width. The new double-late-write device offers 100 percent data-bus efficiency and an exceptionally fast data throughput of 25 gigabits per second, making it an ideal choice for broadband networking and telecommunications system applications, such as routers and switches.

"Telecom engineers and network designers are always looking to push the envelope when it comes to data throughput, but not compromise on space and power consumption," said Tad Keeley, senior product marketing manager for SRAMs at Mitsubishi Electric & Electronics USA, Inc. "Operating at a fast clock speed across a wide bus, this new Network SRAM achieves a higher data throughput than competing products. In addition, this chip offers all the benefits of the SigmaRAM architecture, including easy scalability, low EMI, and lower system cost."

The SigmaRAM architecture presents an open set of standards that deliver very fast clock speeds, exceptionally quick access times, high density, outstanding noise immunity, and extremely wide buses. The architecture also offers memory scaling using the same package in future product generations. Customers can incorporate the 18-Mbit device in an existing design, then replace it with a 36-Mbit, 72-Mbit, or 144-Mbit device without expensive redesign, enabling future products to come to market quicker and more cost-effectively.

"This new chip shows Mitsubishi Electric's continued commitment to bring high-quality products to market that mirror the needs of our customers," added Keeley. "We continue to expand our Network SRAM product portfolio to give system designers a complete choice, no matter what memory challenge they are facing."

The new 350-MHz SigmaRAM device is available in both 72-bit-wide (M5M5Y5672TG) and 36-bit-wide (M5M5Y5636TG) configurations, operating with a 1.8-volt power supply to offer low power consumption at the fastest speeds. The devices conform to the SigmaRAM Consortium's 1x1Dp double-late-write, pipeline-read specification, which enables 100 percent data bus efficiency and avoids data bus collision even in read/write alternate operation. Devices conforming to the SigmaRAM 1x1Lp late-write, pipeline-read specification are also available in both 72-bit-wide (M5M5Y5972TG) and 36-bit-wide (M5M5Y5936TG) configurations.

Packaging and Availability
Mitsubishi Electric's SigmaRAM devices are housed in a 209-ball BGA package with a 14-mm x 22-mm footprint and a 1-mm ball pitch.
Samples are available now, with volume production scheduled for April 2003.

Key Features of M5M5Y5672TG Device:

-	350-MHz clock speed (2.0-ns access time)
-	72-bit-wide data bus -- Common I/O
-	Single 1.8-volt power supply
-	209-ball BGA package
-	Echo clock function available

Additional Network SRAMs Available:

-	M5M5T5672TG -- 200-MHz, 72-bit bus, 2.5-volt supply, 209-ball BGA package.
-	M5M5T5636UG -- 250-MHz, 36-bit bus, 2.5-volt supply, 165-ball BGA package.
-	M5M5T5636GP -- 200-MHz, 36-bit bus, 2.5-volt supply, 100-pin TQFP package.
-	M5M5V5636GP -- 167-MHz, 36-bit bus, 3.3-volt supply, 100-pin TQFP package.

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About Mitsubishi Electric & Electronics USA, Inc.
A top-tier semiconductor supplier, Mitsubishi Electric Corporation offers a broad range of memory products, such as DRAM, SRAM, and flash memory as well as an extensive range of other semiconductors. The company offers its semiconductors in North America through the Electronic Device Group of Mitsubishi Electric & Electronics USA, Inc. Additional information on the Mitsubishi Electric Semiconductor Group is available at http://www.mitsubishichips.com/.
Mitsubishi Electric Corporation and its North American affiliate, Mitsubishi Electric & Electronics USA, Inc., are world-class suppliers of semiconductors and electronic products for communications, industrial, Internet-enabled, automotive, and visual applications. Mitsubishi combines its systems-level expertise and high-level silicon process technologies to provide chip, chipset and system-on-chip solutions. The company is ranked among the top-tier worldwide semiconductor suppliers and offers an extensive range of semiconductor and computer system components for the North American marketplace, including DRAM, flash, SRAM, ASIC, ASSP, MCU, microwave/RF, and optoelectronic devices.
Additional information on the Mitsubishi Electric Semiconductor Group is available at http://www.mitsubishichips.com.


About SigmaRAM
The SigmaRAM SRAM architecture is a set of open standards for powerful, high-speed SRAM devices that are targeted specifically for the networking and communications markets. Developed through the collaboration of several leading SRAM companies and approved by JEDEC, the architecture enables all SRAM manufacturers to develop compatible devices based on the same specifications.


Trademark Information
Mitsubishi and the Mitsubishi logo are registered trademarks of Mitsubishi Electric Corporation in the USA, Japan, and other countries. SigmaRAM is a trademark of the SigmaRAM Consortium. All other companies and products referenced herein are trademarks or registered trademarks of their respective holders.

Keywords
Mitsubishi, SRAM, SigmaRAM, Network SRAM, networking, communications, telecom, telecommunications.

 

Editorial Contacts: Positio Investor & Public Relations Dave Richardson (650) 815-1006, Ext. 108 dave@positiopr.com Mitsubishi Electric & Electronics USA, Inc. John Garner (408) 774-3191 garner_john@edg.mea.com

Customer Contact: (408) 774-3189 customerservice@edg.mea.com