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High-density QDR and DDR SRAMs enable green networking applications

Cypress Semiconductor has announced QDR (Quad Data Rate) and DDR (Double Data Rate) SRAMs at 36Mbit and 18Mbit densities, which are additions to its 65nm SRAM family. They complete a portfolio of 65nm synchronous SRAMs including densities up to 144Mbit and speeds up to 550MHz. The company’s patented process technology reduces power consumption, enabling green networking infrastructure applications. The devices are form, fit and function compatible upgrades for the large installed base of 90nm QDRII/QDRII+ SRAMs (estimated at over 60 million units), and are fully compliant with the QDR Consortium specifications. This compatibility enables designers of existing products to easily upgrade system performance without requiring board redesign. The 65nm SRAMs are suitable for networking applications, including core and edge routers, fixed and modular Ethernet switches, 3G base stations, and secure routers. They also improve performance of medical imaging and military signal-processing systems. The QDRII+ and DDRII+ devices feature on-die termination, which improves signal integrity, reduces system cost, and saves board space by eliminating external termination resistors. The SRAM portfolio includes leaded and lead-free packaging; commercial, industrial and military options; various interface configurations; and a range of performance options.