M66220SP - Mitsubishi

M66220SP 256 x 8-BIT MAIL-BOX

The M66220 is a mail box that incorporates a complete CMOS shared memory cell of 256 × 8-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 equipped with independent addresses CS, WE and OE control pins and I/O pins to allow independent and asynchronous rea.

Features

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• Memory configuration of 256 × 8 bits High-speed access, address access time 40ns (typ.) Complete asynchronous accessibility from ports A and B Completely static operation Built-in port arbitration function Low power dissipation CMOS design 5V single power supply Not Ready output pin is provided (open drain output) TTL direct-coupled I/O 3-state output for I/O pins M66220SP/FP APPLICATION Inter-MPU data transfer memory, buffer memory for image processing system. Outline 42P4B 42P2R-A BLOCK DIAGRAM NOT READY OUTPUT Not Ready A 3 WRITE WEA 2 ENABLE INPUT CHIP CSA 1 SELECT .