72Mbit QDR II+ at 500 MHz — the throughput ceiling
The CY7C2563KV18-500BZC is a 72Mbit synchronous SRAM built on the QDR II+ architecture, clocked at 500 MHz. That clock rate sets the peak read/write bandwidth — at 500 MHz on a 18-bit data bus, the device delivers 9 Gbps per port in a two-port configuration. The 4M x 18 organization means the address space is 4 million words deep, each word 18 bits wide, which maps cleanly to a 36-bit datapath when paired with a second device for parity or ECC. The commercial temperature range (0°C to 70°C) limits this to indoor switching gear, not outdoor base stations or engine-bay controllers.
165-FBGA — rework and board-fit realities
The Tray packaging is the factory delivery format; reels are not available for this package variant, so pick-and-place feeders need a tray handler.
For existing BOM lines that require this exact part number, the supply channel is independent distribution and surplus inventory. Each lot is verified for authenticity and tested to the original datasheet limits before shipment.