Samsung Electronics has announced the development of a 256 Mbit
PSRAM chip based on a 90-nanometer process technology. With the announcement, the company reported that it would begin sampling
cellular phone manufacturers later this month and then go into mass production by the end of 2005.
The new JEDEC compliant PSRAM, called the 256 Mb UtRAM, has
an operational speed of 133 MHz. It is available in a stand-alone version or can be combined with different types of memory
chips such as flash in multi-chip packages (MCP). The high-growth 3G mobile phone market segment is expiated to be a major
market for the chip.
PSRAMs are generally defined as DRAM chips with on-chip DRAM controllers. That architecture simplifies
the design of cellular phones and lowers the power consumption consumed by memory when compared to SRAM chips.
