71V2556S srams equivalent, 3.3v synchronous srams.
* 128K x 36 memory configurations
* Supports high performance system speed - 166 MHz
(3.5 ns Clock-to-Data Access)
* ZBTTM Feature - No dead cycles between wr.
* 4-word burst capability (interleaved or linear)
* Individual byte write (BW1 - BW4) control (May tie active) .
The IDT71V2556 is a 3.3V high-speed 4,718,592-bit (4.5 Megabit) synchronous SRAM. It is designed to eliminate dead bus cycles when turning the bus around between reads and writes, or writes and reads. Thus, they have been given the name ZBTTM, or Zer.
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