CY7C1325G

CY7C1325G 4-Mbit (256K × 18) Flow-Through Sync SRAM 4-Mbit (256K × 18) Flow-Through Sync SRAM Features ■ 256K × 18 common I/O ■ 3.3 V core power supply (VDD) ■ 2.5 V or 3.3 V I/O power supply (VDDQ) ■ Fast clock-to-output times ■ 6.5 ns (133 MHz version) ■ Provide high performance 2-1-1-1 access rate ■ User selectable burst counter supporting Intel Pentium interleaved or linear burst sequences ■ Separate processor and controller address strobes ■ Synchronous self timed write ■ Asynchronous output enable ■ Available in Pb-free 100-pin TQFP package ■ “ZZ” sleep mode option Logic Block Diagram Functional Description The CY7C1325G is a 256K × 18 synchronous cache RAM designed to interface with high speed microprocessors with minimum glue logic. Maximum access delay from clock rise is 6.5 ns (133 MHz version). A 2-bit on-chip counter captures the first address in a burst and increments the address automatically for the rest of the burst access. All synchron...