What this QDR II SRAM does on the board
The Infineon CY7C1513KV18-300BZC is a 72 Mbit synchronous QDR II SRAM organized as 4M x 18 bits, clocked at 300 MHz. It uses a parallel memory interface and operates from a 1.7 V to 1.9 V supply. The QDR II architecture delivers two data words per clock cycle on separate read and write ports, eliminating bus-turnaround dead cycles — critical for back-to-back throughput in high-bandwidth applications like network switches, test equipment, and baseband processing.
300 MHz clock — what it buys you
At 300 MHz, the QDR II interface delivers two data words per clock cycle on separate read and write ports. The 1.7 V to 1.9 V core supply keeps I/O power reasonable at those speeds.
Temperature grade and environment
Rated for 0°C to 70°C ambient — commercial grade. This confines the part to indoor, temperature-controlled racks and benchtop gear.
Lifecycle and sourcing reality
Marked end-of-life (EOL). The manufacturer no longer produces this part in volume. No official successor order code is listed in the lifecycle record. Procurement must source through surplus or broker channels — quoted to order against an RFQ.