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DDR2 SDRAMs provide wider data path for digital consumer apps

Posted: 15 Mar 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Ismini Scouras? Elpida Memory? DDR2? SDRAM? RDIMM?

 Elpida's 1Gbit DDR2 SDRAM

Elpida Memory Inc. unveiled its second-generation 1Gbit DDR2 SDRAM family plus six memory modules based on the devices.

The x16 devices are built using 90nm process technology and provide a wider data path for digital consumer applications. The 1Gbit DDR2 SDRAMs are housed in stacked FBGA packages to enable thinner module design, which is critical for notebook PCs and blade servers that require high-density memory.

The DIMMs based on the 1Gbit DDR2 SDRAMs include Registered and Fully-Buffered DIMMs (FB-DIMMs) for servers, as well as high-density Small Outline DIMMs (SO-DIMMs) for notebook PCs and Unbuffered DIMMs (UDIMMs) for desktop PCs.

"The expansion of our production based on 90nm process technology enables Elpida to significantly improve the speed yield and packaging options of our high-volume DDR2 products," said Jun Kitano, director of technical marketing for Elpida Memory (USA) Inc. "With this new generation of DDR2, we now offer more device configurations, including x4, x8 and x16, as well as a full line-up of memory modules, including Registered DIMMs, FB-DIMMs, UDIMMs and SO-DIMMs."

The 1Gbit DDR2 SDRAM devices are available in four different data rate speeds: 800Mbps, 667Mbps, 533Mbps or 400Mbps. They are organized as either 32-M words x 4 bits x 8 banks, 16 M words x 8 bits x 8 banks, or as 8 M words x 16 bits x 8 banks. The high-speed data transfer rate is achieved by its 4-bit pre-fetch, pipelined architecture. The supply voltage is 1.8V, 0.1V, and the operating temperature range is 0 to 95C. The devices are available in 68- or 92-ball FBGA packages for easy mounting on DIMMs.

Samples of the 1Gbit DDR2 x4 and x8 devices are already available, and RDIMMs based on the new devices are also available. Meanwhile, 1Gbit DDR2 x16 devices, FB-DIMMs, SO-DIMMs and UDIMMs will be available in Q2 2006. Pricing was not available.

- Ismini Scouras

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