Functional Description[1]

The CY7C1325G is a 256 K x 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.

特性 Features

? 256K x 18 common I/O

? 3.3V core power supply (VDD)

? 2.5V or 3.3V 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 lead-free 100-Pin TQFP package, lead-free and non-lead-free 119-Ball BGA package

? “ZZ” Sleep Mode option