© Semiconductor Components Industries, LLC, 2011

May, 2011 − Rev. 5

1

Publication Order Number:

MC74LVX4245/D

MC74LVX4245

Dual Supply Octal

Translating Transceiver

with 3−State Outputs

The 74LVX4245 is a 24−pin dual−supply, octal translating

transceiver that is designed to interface between a 5.0 V bus and a 3.0 V

bus in a mixed 3.0 V / 5.0 V supply environment such as laptop

computers using a 3.3 V CPU and 5.0 V LCD display. The A port

interfaces with the 5V bus; the B port interfaces with the 3.0 V bus.

The Transmit/Receive (T/R) input determines the direction of data

flow. Transmit (active−High) enables data from the A port to the B

port. Receive (active−Low) enables data from the B port to the A port.

The Output Enable (OE) input, when High, disables both A and B

ports by placing them in 3−State.

Features

Threshold Performance

Figure 1. 24−Lead Pinout

(Top View)

23

24

22

21

20

19

18

2

1

3456

7

17

8

16

9

15

10

B0

B1

B2

B3

B4

B5

B6

A0

A1

A2

A3

A4

A5

A6

A7

14

11

13

12

B7

GND

GND GND

http://onsemi.com

See detailed ordering and shipping information in the package

dimensions section on page 5 of this data sheet.

ORDERING INFORMATION

PIN NAMES

Function

Output Enable Input

Transmit/Receive Input

Side A 3−State Inputs or 3−State

Outputs

Side B 3−State Inputs or 3−State

Outputs

Pins

OE

T/R

A0−A7

B0−B7

MARKING

DIAGRAMS

SOIC−24

DW SUFFIX

CASE 751E

1

24

LVX

4245G

ALYW

LVX4245

AWLYYWWG

1

24

1

24

1

24

TSSOP−24

DT SUFFIX

CASE 948H

LVX4245 = Specific Device Code

A

= Assembly Location

WL, L

= Wafer Lot

Y

= Year

WW, W

= Work Week

G or G

= Pb−Free Package

(Note: Microdot may be in either location)