250 MHz DDR II — what that clock buys you
The CY7C1418KV18-250BZC: This is a 36Mbit synchronous SRAM with a Double Data Rate II interface, clocked at 250 MHz. The DDR II architecture transfers data on both clock edges, so the effective data rate is 500 MT/s per I/O pin. For a 2M x 18 configuration, that translates to a peak bandwidth of about 9 Gbit/s across the 18-bit bus — enough to feed a high-speed packet buffer or a deep cache line in a networking ASIC or FPGA without stalling the pipeline.
Supply rail and temperature — design-in boundaries
The core supply range is 1.7V to 1.9V, which aligns with standard 1.8V VDDQ rails used in DDR memory systems.
Package and handling — 165-ball FBGA
The part comes in a 165-ball Fine-Pitch Ball Grid Array (FBGA) measuring 13x15 mm.