The CY7C1315JV18-300BZC: It runs on a 300 MHz clock with a parallel interface, built for high-throughput applications like network switches, telecom line cards, and test equipment where back-to-back read and write operations need zero dead cycles — QDR II's separate read and write data ports eliminate bus-turnaround wait states.
If this part is on your BOM, you are looking at a one-time buy from whatever inventory remains in distribution, or a board redesign around a current-generation SRAM or a pin-compatible QDR II+ part.
At 300 MHz, the QDR II architecture sustains back-to-back read and write operations at the full clock rate. The 512K x 36 organization suits systems needing a wide word fetch.
Package and mounting — 165-ball FBGA
The 165-ball FBGA (13x15 mm) is surface-mount only. The tray shipping medium means parts arrive in anti-static trays.