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Elpida Offers DDR2 SDRAM with x32-Bit I/O Configuration

Elpida Memory has announced the availability of the industry's first 512-megabit DDR2 SDRAM with x32-bit I/O configuration. Elpida will begin sampling of this product by the end of this month.

In the past a DDR2 controller with x32-bit wide interface required two x16-bit I/O DRAMs. Now, Elpida offers a 512-megabit DDR2 SDRAM with x32-bit I/O configuration as a one-chip solution. The advantages of this x32-bit solution over a two 256-megabit DDR2 (with x16-bit configuration) solution are as follows:
- Approximately 25% memory area reduction on the board;
- Fewer package balls (40 balls);
- Approximately 20% less power consumption;
- A one-chip solution delivers low EMI and better signal quality.

Elpida developed x32-bit I/O DDR2 products to meet the need for small-size consumer electronics that feature 1.8V low-voltage operations and low-power consumption. Because the new x32-bit product is specially designed for consumer devices it is well suited for use in digital consumer appliances.

Product Features:
- 512Mbit DDR2 SDRAM (x32-bit I/O configuration) using 70nm process technology;
- Data transfer rate: 250Mbps to 1066Mbps (1GBytes/sec to 4.2GBytes/sec per DRAM device);
- ODT (On-Die-Termination): 50/75/150/225ohm;
- Enhanced 225ohm ODT reduces power consumption.
- Driver strength: normal/weak/quarter;
- Reduces overshoot, undershoot noises.

Mass production of the new x32-bit DDR2 SDRAM is scheduled to begin in September 2008.



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