1

5

Output 5

2

1

Output 1

3

0

Output 0

4

2

Output 2

5

6

Output 6

6

7

Output 7

7

3

Output 3

8

Vss（GND）

Make connection to the ground of the   circuit.

9

8

Output 8

10

4

Output 4

11

9

Output 9

12

CARRY-OUT

This pin goes HIGH, when the counts   exceed 10 and useful for cascading IC’s.

13

ENABLE

The enable pin is active low. When it is   high, the circuit will not receive clock signals and the counter will not   count.

14

CLOCK

This is the clock input signal. On every   positive edge of a clock, counter value gets increment by 1.

15

RESET

restart the counter from 0.

16

Vcc

It is connected to the positive supply