3 bit synchronus down counter

Utkarsh
Utkarsh Ghom
• Created on Sep 24, 2025 • 0 • 0 • 1
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3 bit synchronus down counter
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Integrated Circuits Used

74LS76

Procedure

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