Elpida Offers First DDR2 SDRAM With x32-bit I/O Configuration
Elpida Memory today 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
- 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
- Target Market: Digital TVs, set-top boxes (STB), personal navigation devices (PND), printers, digital still cameras, digital video recorders, projectors and more.
Mass production of the new x32-bit DDR2 SDRAM is scheduled to begin in September 2008.
Source: Elpida Memory
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