HD74HC442 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HD74HC442

Quad Tridirectional Bus Transceiver

Hitachi -> Renesas Electronics 

HD74HC442/HD74HC443/HC74HC444

Quad. Tridirectional Bus Transceiver

(with noninverted 3-state outputs)

Quad. Tridirectional Bus Transceiver

(with inverted 3-state outputs)

Quad Tridirectional Bus Transceiver

(with noninverted/inverted 3-state outputs)

Description

These bus transceivers are designed for a synchronous three-way communication between four-line data

buses. They give the designer a choice of selecting inverting, noninverting or a combination of inverting

and noninverting data paths with 3-state outputs.

The S0 and S1 inputs select the bus from which data are to be transferred. The G inputs enable the bus or

buses to which data are to be transferred. The port for any bus selected for input and any other bus not

enabled for output will be at high impedance.

Features

• High Speed Operation

• High Output Current: Fanout of 15 LSTTL Loads

• Wide Operating Voltage: VCC = 2 to 6 V

• Low Input Current: 1 µA max

• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

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