Y7C1032 WCSS0418V1F 256K x 18 Synchronous 3.3V C.
WCSS0436V1P - 256K x 18 Synchronous 3.3V Cache RAM
Y7C1032 WCSS0418V1F 256K x 18 Synchronous 3.3V Cache RAM Features • Supports 117-MHz microprocessor cache systems with zero wait states • 256K by 18.