Pseudo SRAM (PSRAM) is gaining ground according to a recent study by Semico Research Corp.

PSRAM’s one-transistor DRAM cell, is unique in that typical SRAM cells have six transistors, which give PSRAM some strong advantages such as smaller size and competitive pricing, the firm also said, with manufacturers that account for 90 percent of the total SRAM market now make PSRAM.

SRAM manufacturers in general could feel good about the first half of the year, Semico says, with April and May results in, particularly since Q2 will be stronger than Q1, up approximately 6 percent in unit shipments and 1 percent in revenues.

In addition to the heavy influence PSRAM has had on the market, Semico believes the strong demand from the cell phone market could be attributed as well.

“Mobile devices require more memory density due to the increasing usage of color screens, cameras, and other features. With densities up to 128Mbit, PSRAM is replacing low-power six-transistor asynchronous SRAM, which only goes up to 16Mbit at this time,” the firm said.

For 2003 and 2004, the leading SRAM/PSRAM vendors were Samsung, Cypress, Renesas, Micron and Toshiba.

By: DocMemory
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