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MC74HC242 - Quad 3-State Bus Transceiver

General Description

DATA PORTS A1 A4 (Pins 3,4,5,6) and B1

B4 (Pins 11,10,9,8) Data on these pins may be transferred between data buses.

impedance).

to B En

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Full PDF Text Transcription (Reference)

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MOTOROLA SEMICONDUCTOR TECHNICAL DATA Quad 3-State Bus Transceiver High–Performance Silicon–Gate CMOS The MC74HC242 is identical in pinout to the LS242. The device inputs are compatible with Standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This quad bus transceiver is designed for asynchronous two–way communications between data buses. The states of the Output Enables (A–to–B Enable and B–to–A Enable) determine both the direction of data flow (from A to B or from B to A) and the modes of the Data Ports (input, output, or high–impedance).