72Mbit QDR II at 250 MHz — what the clock buys
The CY7C1512AV18-250BZC: The 250 MHz clock rate on this QDR II synchronous SRAM delivers back-to-back read/write throughput without dead cycles — a key advantage for high-bandwidth buffer applications like network line cards and telecom switch fabrics. Organised as 4M x 18, the 72Mbit density fits moderate-depth data FIFOs or tag memories where a single chip covers the lookup table without external muxing.
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Package and supply rail checklist
165-FBGA (15x17 mm) — the ball pitch requires a 4-layer PCB minimum for fan-out; the centre thermal pad needs a via array to the ground plane for heat spreading. Supply range is 1.7V to 1.9V — the core and I/O share a single rail, so a 1.8V ±5% regulator with 1 A peak capability covers the transient load.