633 MHz QDR IV SRAM for high-throughput line cards
The Infineon CY7C4121KV13-633FCXI is a 144 Mbit synchronous QDR IV SRAM organized as 8M × 18 bits, clocked at 633 MHz over a parallel interface. Supply range is 1.26 V to 1.34 V. The 361-ball FCBGA (21 × 21 mm) requires a multi-layer PCB with controlled impedance for the 633 MHz traces.
