4-Mbit (256K x 18) Pipelined SRAM with NoBL™ Architecture

Features

• Pin compatible and functionally equivalent to ZBT™ devices

• Internally self-timed output buffer control to eliminate

the need to use OE

• Byte Write capability

• 256K x 18 common I/O architecture

• 3.3V core power supply (VDD)

• 2.5V/3.3V I/O power supply (VDDQ)

• Fast clock-to-output times

— 2.6 ns (for 250-MHz device)

• Clock Enable (CEN) pin to suspend operation

• Synchronous self-timed writes

• Asynchronous output enable (OE)

• Available in lead-free 100-Pin TQFP package

• Burst Capability—linear or interleaved burst order

• ZZ” Sleep Mode Option and Stop Clock option