450 MHz QDR II+ SRAM — what the clock rate buys you
The CY7C1564XV18-450BZC is a Cypress 72Mbit synchronous SRAM using the QDR II+ architecture, clocked at 450 MHz. That clock rate means the part can sustain back-to-back read and write transactions on every rising and falling edge — effectively doubling the data rate per pin pair compared to a conventional single-data-rate SRAM. The 2M x 36 organization gives you a 36-bit wide data bus, which maps cleanly to a 32-bit processor with parity or ECC overhead, or to a 36-bit wide datapath in a networking ASIC. The 1.7V to 1.9V supply rail aligns with 1.8V-core logic families, so no extra level translation is needed when interfacing to a 1.8V FPGA or controller.
The surface-mount package is intended for reflow soldering; the tray shipping medium means the parts arrive in anti-static trays, not tape-and-reel, so plan for pick-and-place handling with a tray feeder.
For a high-speed SRAM used in telecom line cards, test equipment, or high-end networking, this active status gives confidence for both new-design qualification and ongoing production replenishment.