QDR II synchronous SRAM — 250 MHz, 18 Mbit, 2M x 8
The Infineon CY7C1311KV18-250BZC is a QDR II (Quad Data Rate) synchronous SRAM organized as 2M x 8, delivering 18 Mbit of volatile storage with a 250 MHz clock interface. The QDR II architecture provides independent read and write data ports, eliminating bus-turnaround dead cycles that plague common-I/O SRAMs — each port transfers data on both clock edges, sustaining a 500 MT/s data rate at the 250 MHz clock.
The 250 MHz clock frequency defines the timing budget for the address/control bus and the data valid window at the receiver.
Last Buy — procurement timeline
This means Infineon has announced end-of-life for this specific variant, and there is a finite window to place final orders before production ceases. For a BOM line using this exact order code, the procurement action is time-sensitive — secure allocated quantities or a lifetime buy now, because once the Last Buy window closes, the only channel will be surplus and broker inventory.