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Mitsubishi Samples JEDEC Standard, 512-Mbyte Registered DIMM Built Using 0.18-um, 256-Mbit PC266 or PC200 DDR SDRAMs.

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SUNNYVALE, Calif.--(BUSINESS WIRE)--Jan. 18, 2000

Mitsubishi Electronics America's Electronic Device Group today announced sample availability of a 512-Mbyte registered dual in-line memory module (DIMM) that is compliant with JEDEC standards, meets PC266 and PC200 requirements, and is targeted to meet the large main memory needs of high-end servers, workstations, and PCs. Built using 18 pieces of Mitsubishi's discrete 256-Mbit PC266 or PC200 Double Data Rate (DDR) Synchronous DRAMs (SDRAMs), which are manufactured in a 0.18-um CMOS process technology, the 184-pin registered DIMM can achieve a peak data transfer rate of up to 2.1 Gbytes per second at a clock frequency of up to 133 MHz -- or up to 266 Mbits per second per data pin -- when used with a 64-bit data bus.

The 512-Mbyte registered DIMM samples are first available using 256-Mbit DDR SDRAMs in a by-4-bit configuration, which is ideally suited for server, workstation, networking, and communications system applications that require system-level error correction code (ECC) detection and correction with "chip-kill" protection. Mitsubishi is also now developing a 512-Mbyte DIMM using 256-Mbit DDR SDRAMs in a by-8-bit configuration.

"The availability of the 512-Mbyte registered DIMM demonstrates Mitsubishi's commitment to the needs of high-end server, workstation, and PC customers who want JEDEC-compliant, PC266 and PC200 DDR SDRAM module solutions as soon as possible," said Cecil Conkle, assistant vice president of DRAM marketing at Mitsubishi Electronics America Inc.

The 512-Mbyte DDR SDRAM based DIMM uses the JEDEC-standard stub series terminated logic (SSTL_2) interface. This interface typically features less than half the voltage swing of the low-voltage transistor-to-transistor logic (LVTTL) interface used in conventional SDRAM. The module offers 2.5-volt operation for low power dissipation. Input signals to the registered DIMM access memory chips through either the phase locked loop (PLL) or one of the register buffers on the DIMM.

Packaging, Availability and Pricing

Mitsubishi's 512-Mbyte DDR SDRAM based DIMM, MH64D72KLG, is available in a JEDEC-standard 184-pin module that is 133.35-mm x 43.18-mm. Samples of the DIMM will be available in February 2000, with volume production scheduled for April 2000. Sample pricing for the PC266 and PC200 versions of the DIMM are $7,048 and $5,334 each, respectively.

About Mitsubishi Electric and Mitsubishi Electronics America Inc.

Mitsubishi Electric Corporation is one of the world's top-10 DRAM suppliers and aggressively develops advanced DRAMs, such as PC100, PC133, and DDR SDRAM, RDRAM(R), and other emerging industry-standard DRAM types to support current and future customer requirements. Mitsubishi Electric is the first company to successfully integrate the process technologies of DRAM and processor logic with its highly acclaimed eRAM(TM) system integration technology, and has shipped embedded DRAM products in high volume for longer than any other supplier. eRAM is Mitsubishi Electric's brand name for its silicon process technology, products, and systems expertise that integrate memory and system-level core functions on the same integrated circuit to enable unprecedented overall system performance.

A top-tier semiconductor supplier, Mitsubishi Electric markets memory products and an extensive range of other semiconductors in North America through the Electronic Device Group of Mitsubishi Electronics America, Inc. Additional information on the Mitsubishi Electric Semiconductor Group is available at http://www.mitsubishichips.com/.

Trademark Information

eRAM is a trademark of Mitsubishi Electronics America Inc. RDRAM is a registered trademark of Rambus Inc. All other companies and products referenced herein are trademarks or registered trademarks of their respective holders.

Keywords

Mitsubishi, DDR, SDRAM, DDR SDRAM, PC266, PC133, Synchronous DRAM, DRAM.
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Publication:Business Wire
Date:Jan 18, 2000
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