GENERAL DESCRIPTION

The W25S243A is a high-speed, low-power, synchronous-burst pipelined, CMOS static RAM organized as 65,536 ′ 64 bits that operates on a single 3.3-volt power supply. A built-in two-bit burst address counter supports both Pentium? burst mode and linear burst mode. The mode to be executed is controlled by the LBO pin. Pipelining or non-pipelining of the data outputs is controlled by the FT pin. A snooze mode can reduces power dissipation.

This device supports 3-1-1-1-2-1-1-1 in a two-bank, back-to-back burst read cycle.

FEATURES

? Synchronous operation

? High-speed access time: 12 nS

? Single +3.3V power supply

? Individual byte write capability

? 3.3V LVTTL compatible I/O

? Clock-controlled and registered input

? Asynchronous output enable

? Pipelined/non-pipelined data output capability

? Supports snooze mode (low-power state)

? Internal burst counter supports Intel burst (Interleaved) mode & linear burst mode

? Supports 2T/1T mode

? Packaged in 128-pin QFP and TQFP