Pin Number

Pin Name

Description

1

Enable 1,2

This pin enables the input pin Input 1(2) and Input 2(7)

2

Input 1

Directly controls the Output 1 pin. Controlled by digital circuits

3

Output 1

Connected to one end of  Motor 1

4

Ground

Ground pins are connected to ground of circuit (0V)

5

Ground

Ground pins are connected to ground of circuit (0V)

6

Output 2

Connected to another end of  Motor 1

7

Input 2

Directly controls the Output 2 pin. Controlled by digital circuits

8

Vcc2 (Vs)

Connected to Voltage pin for running motors (4.5V to 36V)

9

Enable 3,4

This pin enables the input pin Input 3(10) and Input 4(15)

10

Input 3

Directly controls the Output 3 pin. Controlled by digital circuits

11

Output 3

Connected to one end of Motor 2

12

Ground

Ground pins are connected to ground of circuit (0V)

13

Ground

Ground pins are connected to ground of circuit (0V)

14

Output 4

Connected to another end of Motor 2

15

Input 4

Directly controls the Output 4 pin. Controlled by digital circuits

16

Vcc2 (Vss)

Connected to +5V to enable IC function