'Industry's first' 65nm 144Mbit srams
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Cypress Semiconductor has launched what it says are the industry's first monolithic srams at 144Mbit densities, the latest members of its 65nm sram family.
The QDRII, QDRII+, DDRII and DDRII+ memories leverage 65nm process technology developed with foundry partner UMC. According to Cypress, they feature a clock speed of 550MHz and a total data rate of 80Gbps in a 36bit I/O width QDRII+ device, and are said to consume half the power of 90nm srams.
Compared with 90nm srams, Cypress says that its 65nm QDR and DDR srams offer up to 50% lower standby and dynamic current consumption, while thhe QDRII+ and DDRII+ devices have on-die termination which can improve signal integrity and reduce board space by eliminating external termination resistors. The 65nm devices use a phase locked loop instead of a delay locked loop, which Cypress says enables a 35% wider data valid window.
Dave Kranzler, vice president of sync and timing products at Cypress, said: "As the worldwide leader in srams, we offer by far the industry's broadest portfolio. This introduction widens our lead by providing the fastest, largest devices in the industry. It's another clear indication of our commitment to the sram market."
