M66222FP - Mitsubishi

M66222FP 128 x 8-BIT x 2 MAIL-BOX

The M66222 is a mail box that incorporates two complete CMOS shared memory cells of 128 × 8-bit configuration using highperformance silicon gate CMOS process technology, and are 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 .

Features

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• Memory configuration of 128 × 8 bits × 2 memory areas High-speed access, address access time 40ns (typ.) Complete asynchronous accessibility from ports A and B Fixed read/write access ports for memory Completely static operation Low power dissipation CMOS design 5V single power supply TTL direct-coupled I/O 3-state output for I/O pins M66222SP/FP APPLICATION Inter-MCU data transfer memory, communication buffer memory Outline 42P4B 42P2R-A NC: No Connection BLOCK DIAGRAM 42 VCC 41 CSB CHIP SENSE AMPLIFIER INPUT DATA CONTROL CIRCUIT OUTPUT BUFFER CHIP SELECT CSA 1 INPU.