SUNNYVALE, Calif. — February 5, 2002 — To meet the requirements of high-performance networking and telecom systems, the Electronic Device Group of Mitsubishi Electric & Electronics USA, Inc., announced the sample availability of JEDEC-standard, 18-Mbit SigmaRAM™ high-speed SRAMs. Available in x72-bit and x36-bit configurations and conforming to the SigmaRAM Consortium’s S1x1Dp specification, the devices offer a data throughput of up to 24 gigabits per second (Gbps) and up to 18 Gbps, respectively, at the 333-MHz and 250-MHz speed grades.

"Networking and telecom designers are demanding SRAMs that are designed for their unique system needs," said Tad Keeley, senior product marketing manager for SRAMs at Mitsubishi Electric & Electronics USA, Inc. "The SigmaRAM architecture delivers very fast clock speeds, quick access times, high density, exceptionally wide busses, excellent noise immunity, and low power consumption. It also gives system designers a stable and easy development path to higher densities over many product generations. The addition of SigmaRAM SRAMs significantly enhances our diverse memory product portfolio."

Manufactured in a leading-edge 0.15-mm CMOS process technology, Mitsubishi Electric’s SigmaRAM devices offer access times as fast as 2.1 ns and operate on a single 1.8-volt power supply for low power consumption. The devices are available in a 209-ball BGA package with a 14-mm x 22-mm footprint.

• Fully registered inputs and outputs for pipelined operation
• Separate 1.8-volt Vddq for I/O
• Individual byte write controls
• Single read/write control pin
• Echo clock outputs track data output drivers
• ZQ mode pin for user selectable output drive strength
• Two user-programmable chip enable inputs for easy depth expansion
• Linear or interleaved burst modes
• JTAG boundary scan support

Availability
Mitsubishi Electric’s 18-Mbit SigmaRAM SRAMs will be available under the product numbers M5M5Y5636TG for the 512-kiloword x 36-bit (512K x 36) configuration device and M5M5Y5672TG for the 256K x 72 configuration device. Samples of 250-MHz speed grade version of both products will be available this month, with volume production scheduled for April 2002. Samples of 333-MHz speed grade version of both products will be available in June 2002, with volume production scheduled for the third quarter of 2002.

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.

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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/.

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, networking, communications, telecom, telecommunications.

For More Information:
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