Rev.3.00 Aug. 18, 2004 page 1 of 8

HD74LVCZ245A

Octal Bidirectional Transceivers with 3–state Outputs

REJ03D0372–0300

(Previous ADE-205-228A (Z))

Rev.3.00

Aug. 18, 2004

Description

The HD74LVCZ245A has eight buffers with three state outputs in a 20 pin package. When (T /

R) is high, data flows

from the A inputs to the B outputs, and when (T /

R) is low, data flows from the B inputs to the A outputs. A and B bus

are separated by making enable input (

OE) high level.

Low voltage and high-speed operation is suitable at battery drive product (note type personal computer) and low power

consumption extends the life of a battery for long time operation.

Features

• V

• All inputs V

• All inputs / outputs V

• Typical V

• Typical V

• High impedance state during power up and power down

• Power off disables outputs, permitting live insertion

• High output current ±24 mA (@V

• Ordering Information

Part Name

Package Type

Package Code

Package

Abbreviation

Taping Abbreviation

(Quantity)

HD74LVCZ245AFPEL

SOP–20 pin (JEITA)

FP–20DAV

FP

EL (2,000 pcs/reel)

HD74LVCZ245ATELL

TSSOP–20 pin

TTP–20DAV

T

ELL (2,000 pcs/reel)

Function Table

Inputs

OE

T /

R

Operation

L

L

B data to A bus

L

H

A data to B bus

HX

Z

H: High level

L: Low level

X: Immaterial

Z: High impedance