74HC245

http://onsemi.com

2

Figure 1. Pin Assignment

A5

A3

A2

A1

DIRECTION

GND

A8

A7

A6

A4

5

4

3

2

1

10

9

8

7

6

14

15

16

17

18

19

20

11

12

13

B3

B2

B1

OUTPUT ENABLE

B8

B7

B6

B5

B4

A

DATA

PORT

A8

A7

A6

A5

A3

A4

A2

A1

9

8

7

6

5

4

3

2

DIRECTION

OUTPUT ENABLE

1

19

PIN 10 = GND

18

17

16

15

14

13

12

11

B1

B2

B3

B4

B5

B6

B7

B8

B

DATA

PORT

Figure 2. Logic Diagram

FUNCTION TABLE

Control Inputs

Operation

Output

Enable

Direction

L

L

Data Transmitted from Bus B to Bus A

L

H

Data Transmitted from Bus A to Bus B

H

X

Buses Isolated (High−Impedance State)

X = don’t care

ORDERING INFORMATION

Device

Package

74HC245DTR2G

TSSOP−20*

2500 / Tape & Reel

†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.

*This package is inherently Pb−Free.