Monday, January 17, 2005
Elpida said that it has shipped samples of a 256 Megabit DDR SDRAM that extends the battery life for handheld electronics by reducing self refresh current.
The memory modules integrate a proprietary Super Self Refresh (SSR) technology which is able to reduce 95 percent in self refresh current (IDD6). The power saving feature does not require a trade-off in performance, Elpida said. The circuit improvements of SSR allow IDD6 to drop as low as 40 micro ampere at 25 degrees.
SSR extends the internal refresh interval by working with embedded Error Correction Circuit (ECC), according to the company. Using an on-chip temperature sensor known as Auto Temperature Compensated Self Refresh (ATCSR), SSR also automatically adjusts the self refresh timing to compensate for internal temperature variations.
By: DocMemory
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