74LVC2T45

Document number: DS43360 Rev. 1 - 2

2 of 15

www.diodes.com

January 2021

© Diodes Incorporated

74LVC2T45

Pin Descriptions

Pin Name

Pin

Function

VCC(A)

1

Supply for I/O Pin A; Reference for DIR

1A

2

Data Input/Output

2A

3

Data Input/Output

GND

4

Ground

DIR

5

Direction Control

2B

6

Data Input/Output

1B

7

Data Input/Output

VCC(B)

8

Supply for I/O Pin B

Logic Diagram

DIR

1A

1B

2A

2B

Function Tables

Input

DIR (Direction Pin)

Operation

L

B Data to A Output

H

A Data to B Output

Inputs

Outputs

A

B

DIR

A

B

Note 4

L

L

L

Note 4

Note 4

H

L

H

Note 4

L

Note 4

H

Note 4

L

H

Note 4

H

Note 4

H

Note:

4. Pin condition not applicable as defined by DIR.