Rev.2.00 Jan 31, 2006 page 1 of 6

HD74HC243

Quad. Bus Transceivers (with noninverted 3-state outputs)

REJ03D0596–0200

(Previous ADE-205-473)

Rev.2.00

Jan 31, 2006

Description

The HD74HC243 is a noninverting buffer. Each device has one active high enable (GBA), and one active low enable

(

GAB). GBA enables the A output and GAB enables the B outputs. The device does not have schmitt trigger inputs.

Features

• High Speed Operation: t

• High Output Current: Fanout of 15 LSTTL Loads

• Wide Operating Voltage: V

• Low Input Current: 1 µA max

• Low Quiescent Supply Current: I

• Ordering Information

Part Name

Package Type

Package Code

(Previous Code)

Package

Abbreviation

Taping Abbreviation

(Quantity)

HD74HC243P

DILP-14 pin

PRDP0014AB-B

(DP-14AV)

P

—

HD74HC243FPEL

SOP-14 pin (JEITA)

PRSP0014DF-B

(FP-14DAV)

FP

EL (2,000 pcs/reel)

Note:

Please consult the sales office for the above package availability.

Function Table

Control Inputs

Data Port Status

GAB

GBA

A

B

H

H

O

I

L

H

Z

Z

H

L

Z

Z

L

L

I

O

H :

high level

L

:

low level

X :

irrelevant

I

:

input

O :

output

Z

:

high-impedance