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HD74HC444

Quad. Tridirectional Bus Transceiver

Renesas Electronics 

HD74HC442, HD74HC443, HD74HC444

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)

REJ03D0627-0200

(Previous ADE-205-506)

Rev.2.00

Mar 30, 2006

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)

• Ordering Information

Part Name

Package Type

Package Code

(Previous Code)

Package

Abbreviation

HD74HC442RPEL

PRSP0020DC-A

HD74HC443RPEL SOP-20 pin (JEDEC) (FP-20DBV)

RP

HD74HC444RPEL

Taping Abbreviation

(Quantity)

EL (1,000 pcs/reel)

Rev.2.00 Mar 30, 2006 page 1 of 7

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