© Semiconductor Components Industries, LLC, 2005

April, 2005 − Rev. 10

1

Publication Order Number:

74VCXH245/D

74VCXH245

Low−Voltage 1.8/2.5/3.3 V

8−Bit Transceiver

(3−State, Non−Inverting with Bushold)

The 74VCXH245 is an advanced performance, non−inverting 8−bit

transceiver. It is designed for very high−speed, very low−power

operation in 1.8 V, 2.5 V or 3.3 V systems.

The 74VCXH245 is designed as a byte control. The

Transmit/Receive (T/Rn) inputs determine the direction of data flow

through the bidirectional transceiver. Transmit (active−HIGH) enables

data from A ports to B ports; Receive (active−LOW) enables data from

B to A ports. The Output Enable input (OE), when HIGH, disables

both A and B ports by placing them in a HIGH Z condition. The data

inputs include active bushold circuitry, eliminating the need for

external pullup resistors to hold unused or floating inputs at a valid

logic state.

Features

3.5 ns max for 3.0 to 3.6 V

4.2 ns max for 2.3 to 2.7 V

8.4 ns max for 1.65 to 1.95 V

±18 mA Drive at 2.3 V

±6 mA Drive at 1.65 V

Valid Logic State

Substantially Reduces System Power Requirements

Human Body Model >2000 V

Machine Model >200 V

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

http://onsemi.com

MARKING

DIAGRAM

QFN

MNR2 SUFFIX

CASE 485AA

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W

= Work Week

G

= Pb−Free Package

(Note: Microdot may be in either location)

Device

Package

ORDERING INFORMATION

74VCXH245MNR2

QFN

3000/Tape&Reel

74VCXH245MNR2G

QFN

(Pb−Free)

3000/Tape&Reel

1

VCX

H245

ALYW

G

G

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

Pinout (Top View)

PIN #1

29

19

12

20

10

11

QFN