Functional Description[1]

The CY7C1297F is a 131,072 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

? 64K x 18 common I/O

? 3.3V –5 and +10 core power supply (VDD)

? 3.3V I/O supply (VDDQ)

? Fast clock-to-output times

— 6.5 ns (133-MHz version)

— 7.5 ns (117-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

? Supports 3.3V I/O level

? Offered in JEDEC-standard 100-pin TQFP

? “ZZ” Sleep Mode option