M66221FP mail-box equivalent, 256 x 9-bit mail-box.
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* Memory configuration of 256 × 9 bits High-speed access, address access time 40ns (typ.) Complete asynchronous .
The M66221 is a mail box that incorporates a complete CMOS shared memory cell of 256 × 9-bit configuration using high-performance silicon gate CMOS process technology, and is equipped with two access ports of A and B. Access ports A and B are equippe.
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