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Cypress burst SRAM eyes OC-48 networks

Posted: 23 Aug 2002 ?? ?Print Version ?Bookmark and Share

Keywords:cypress semiconductor? enhanced memory systems? ramtron? no bus latency esram? nobl esram?

Cypress Semiconductor Corp. has announced that it is sampling its 72Mb No Bus Latency (NoBL) burst SRAMs for use in networking applications operating at OC-48 speeds (2.5Gbps) and above.

Jointly developed with Enhanced Memory Systems Inc., the SRAMs uses a patented one-transistor (1T) enhanced SRAM (ESRAM) technology, 4 to 8 times higher density, and four times lower power than traditional six-transistor sync SRAMs.

The NoBL architecture allows data transfer on every clock cycle, regardless of whether an R/W operation is taking place, providing full bus utilization.

The 72Mb NoBL burst SRAMs are organized in 2Mx36 configurations and operate at up to 166MHz clock speed. The products are available with 2.5V or 3.3V power supply options in a 100-pin TQFP package. In addition, these products are pin-, function-, and timing-compatible with the Cypress family of NoBL SRAMs in the burst operation, making them suitable upgrades in network systems that require larger SRAM buffer memories.

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