72 Mbit QDR II+ SRAM at 450 MHz — last-buy lifecycle
The CY7C2562XV18-450BZXC is a 72 Mbit synchronous SRAM organized as 4M x 18, using QDR II+ architecture for double-data-rate reads and writes on separate ports. The 450 MHz clock rate delivers a peak bandwidth of 900 MHz equivalent per port, making it suited for high-throughput networking buffers and test equipment that need deterministic latency and no refresh cycles. Infineon lists this part as Last Buy — the manufacturer has issued a last-time-buy notice, and future procurement will rely on the remaining factory allocation or surplus inventory.
The supply range is 1.7 V to 1.9 V, so the core rail must be regulated to 1.8 V ±0.1 V; a 1.8 V LDO with 200 mV dropout at the load current is the typical choice.
In the Last Buy window — quantities are limited to the manufacturer's final allocation and spot-market surplus. No pin-compatible direct replacement from Infineon is listed for this exact speed bin.