NoBL synchronous SRAM for high-throughput buffers
The Cypress CY7C1354CV25-166BZC is a 9 Mbit synchronous SRAM from the NoBL (No Bus Latency) family, organized as 256K x 36 bits. It clocks at 166 MHz with a 3.5 ns access time, eliminating the dead cycle between read and write operations that standard pipelined SRAMs require. The 36-bit word width suits designs needing parity or ECC alongside data — common in network switch buffers, telecom line cards, and DSP memory arrays. Supply range is 2.375 V to 2.625 V, and the part is specified for 0°C to 70°C commercial environments only.
166 MHz clock and 3.5 ns access — what it means for the bus
The 166 MHz clock rate and 3.5 ns access time define the timing budget for the memory bus. NoBL architecture allows back-to-back read and write transactions without a turnaround cycle.