3 bit Synchronous down counter

Sonali
Sonali Betageri
• Created on Nov 27, 2021 • undefined 0 • undefined 0 • undefined 2
undefined Edit Circuit undefined Copy Circuit undefined Try Yourself
3 bit Synchronous down counter
100%

undefined Integrated Circuits Used

74LS08 74LS76

undefined Procedure

  1. Connect VCC Port to Pin-5 (VCC) of ICBase-1 (74LS76).
  2. Connect GND Port to Pin-17 (Ground) of ICBase-1 (74LS76).
  3. Connect GND Port to Pin-17 (Ground) of ICBase-2 (74LS76).
  4. Connect VCC Port to Pin-5 (VCC) of ICBase-2 (74LS76).
  5. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS08).
  6. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS08).
  7. Connect Input-0 to Pin-2 (Input) of ICBase-1 (74LS76).
  8. Connect Input-0 to Pin-7 (Input) of ICBase-1 (74LS76).
  9. Connect Input-0 to Pin-2 (Input) of ICBase-2 (74LS76).
  10. Connect Input-1 to Pin-3 (Input) of ICBase-1 (74LS76).
  11. Connect Input-1 to Pin-8 (Input) of ICBase-1 (74LS76).
  12. Connect Input-1 to Pin-3 (Input) of ICBase-2 (74LS76).
  13. Connect Clock port of 1Hz frequency to Pin-1 (Input) of ICBase-1 (74LS76).
  14. Connect Clock port of 1Hz frequency to Pin-6 (Input) of ICBase-1 (74LS76).
  15. Connect Clock port of 1Hz frequency to Pin-1 (Input) of ICBase-2 (74LS76).
  16. Connect Input-2 to Pin-4 (Input) of ICBase-1 (74LS76).
  17. Connect Input-2 to Pin-20 (Input) of ICBase-1 (74LS76).
  18. Connect Output-7 to Pin-19 (Output) of ICBase-1 (74LS76).
  19. Connect Output-6 to Pin-15 (Output) of ICBase-1 (74LS76).
  20. Connect Pin-4 (Input) of ICBase-2 (74LS76) to Pin-3 (Output) of ICBase-3 (74LS08).
  21. Connect Pin-3 (Output) of ICBase-3 (74LS08) to Pin-20 (Input) of ICBase-2 (74LS76).
  22. Connect Output-5 to Pin-19 (Output) of ICBase-2 (74LS76).
  23. Connect Pin-18 (Output) of ICBase-1 (74LS76) to Pin-13 (Input) of ICBase-1 (74LS76).
  24. Connect Pin-18 (Output) of ICBase-1 (74LS76) to Pin-16 (Input) of ICBase-1 (74LS76).
  25. Connect Pin-1 (Input) of ICBase-3 (74LS08) to Pin-18 (Output) of ICBase-1 (74LS76).
  26. Connect Pin-14 (Output) of ICBase-1 (74LS76) to Pin-2 (Input) of ICBase-3 (74LS08).
  27. Add IC 74LS08 into ICBase-3 (74LS08).
  28. Add IC 74LS76 into ICBase-2 (74LS76).
  29. Add IC 74LS76 into ICBase-1 (74LS76).