PSRAM is dynamic RAM with built-in refresh and address-control circuitry to make it behave similarly to static RAM (SRAM). It combines the high density of DRAM with the ease of use of true SRAM. PSRAM (made by Numonyx) is used in the Apple iPhone and other embedded systems such as XFlar Platform.
Some DRAM components have a "self-refresh mode". While this involves much of the same logic that is needed for pseudo-static operation, this mode is often equivalent to a standby mode. It is provided primarily to allow a system to suspend operation of its DRAM controller to save power without losing data stored in DRAM, rather not to allow operation without a separate DRAM controller as is the case with PSRAM.
Jeju Semiconductor is one of the world largest SRAM solutions provider for mobile applications
Since Jeju Semiconductor made a debut to the SRAM (Static Random Access Memory) market in 2001 with 4M SRAM, Jeju Semiconductor continued implementing full lineup of low power SRAM products through 1M, 2M, 4M to 8M SRAM.
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Jeju Semiconductor is one of the world largest SRAM solutions provider for mobile applications
