Functional Description[1]

The CY7C1345F is a 131,072 x 36 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.

Features

• 128K × 36 common I/O

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

• 2.5V or 3.3V I/O supply (VDDQ)

• Fast clock-to-output times

— 6.5 ns (133-MHz version)

— 7.5 ns (117-MHz version)

— 8.0 ns (100-MHz version)

— 11.0 ns (66-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 • Offered in JEDEC-standard 100-pin TQFP and 119-ball BGA packages

• “ZZ” Sleep Mode option