Often Times, we need a clock signal on digital logic circuits, more often when students in a class are experimenting and learning.

This circuits used a 32.768 kHz crustal and a few frequency divider ICS to generate 12 different clocks of 0.5Hz, 1Hz, 2Hz, 4Hz, 8Hz, 32Hz, 64Hz, 128Hz, 256Hz, 512Hz, 1024Hz, 2048Hz. It plugs directly into a MB102 sized breadboard and borrows power from the headers on the top rail. (Bottom rail headers is for support only)

A 1n4148 diode provides reverse polarity protection. PCB is made with Through Hole Components to be beginner friendly. BOM

1. 1n4148 Diode x1

2. 16v 100uf Electrolytic Capacitor x 1

3. CD4060 x1

4. CD4013 x 1

5. 6.8Mohm resistors x 2

6. 1kohm x 1

7. 330kohm x 1

8. 32.768 kHz crystal x1

9. 33pF ceramic Capacitors x 2

10. 2x6 headers x 2

11. 1x12 headers x 1

12. IC socket 14 pin x1

13. IC socket 16pin x 1

14. 5mm LED ( Red Color) x1

15. 2x1 Header x2

PCB tested and confirmed to be working