3 bit synchronus up-down using jk

Utkarsh
Utkarsh Ghom
• Created on Sep 17, 2025 • 2 • 2 • 4
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3 bit synchronus up-down using jk
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Integrated Circuits Used

74LS76 74LS08 74LS04 74LS32

Procedure

  1. Add IC 74LS76 into ICBase-1 (74LS76).
  2. Connect Pin-4 (Input) of ICBase-1 (74LS76) to Input-1.
  3. Connect Pin-20 (Input) of ICBase-1 (74LS76) to Input-1.
  4. Connect Pin-1 (Input) of ICBase-1 (74LS76) to Clock port of 1Hz frequency.
  5. Connect GND Port to Pin-17 (Ground) of ICBase-1 (74LS76).
  6. Connect VCC Port to Pin-5 (VCC) of ICBase-1 (74LS76).
  7. Add IC 74LS08 into ICBase-2 (74LS08).
  8. Connect Pin-1 (Input) of ICBase-2 (74LS08) to Pin-19 (Output) of ICBase-1 (74LS76).
  9. Connect Pin-4 (Input) of ICBase-2 (74LS08) to Pin-18 (Output) of ICBase-1 (74LS76).
  10. Add IC 74LS04 into ICBase-3 (74LS04).
  11. Add IC 74LS32 into ICBase-4 (74LS32).
  12. Connect Pin-1 (Input) of ICBase-3 (74LS04) to Input-0.
  13. Connect Pin-2 (Input) of ICBase-2 (74LS08) to Pin-2 (Output) of ICBase-3 (74LS04).
  14. Connect Pin-5 (Input) of ICBase-2 (74LS08) to Input-0.
  15. Connect Pin-1 (Input) of ICBase-4 (74LS32) to Pin-3 (Output) of ICBase-2 (74LS08).
  16. Connect Pin-2 (Input) of ICBase-4 (74LS32) to Pin-6 (Output) of ICBase-2 (74LS08).
  17. Connect Pin-13 (Input) of ICBase-1 (74LS76) to Pin-3 (Output) of ICBase-4 (74LS32).
  18. Connect Pin-16 (Input) of ICBase-1 (74LS76) to Pin-3 (Output) of ICBase-4 (74LS32).
  19. Connect Pin-6 (Input) of ICBase-1 (74LS76) to Clock port of 1Hz frequency.
  20. Connect Pin-19 (Input) of ICBase-2 (74LS08) to Pin-15 (Output) of ICBase-1 (74LS76).
  21. Connect Pin-16 (Input) of ICBase-2 (74LS08) to Pin-14 (Output) of ICBase-1 (74LS76).
  22. Connect Pin-15 (Input) of ICBase-2 (74LS08) to Pin-6 (Output) of ICBase-2 (74LS08).
  23. Connect Pin-4 (Input) of ICBase-4 (74LS32) to Pin-17 (Output) of ICBase-2 (74LS08).
  24. Connect Pin-5 (Input) of ICBase-4 (74LS32) to Pin-14 (Output) of ICBase-2 (74LS08).
  25. Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS08).
  26. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS08).
  27. Connect Pin-20 (VCC) of ICBase-3 (74LS04) to VCC Port.
  28. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS04).
  29. Connect GND Port to Pin-7 (Ground) of ICBase-4 (74LS32).
  30. Connect VCC Port to Pin-20 (VCC) of ICBase-4 (74LS32).
  31. Add IC 74LS76 into ICBase-5 (74LS76).
  32. Connect Pin-4 (Input) of ICBase-5 (74LS76) to Pin-6 (Output) of ICBase-4 (74LS32).
  33. Connect GND Port to Pin-17 (Ground) of ICBase-5 (74LS76).
  34. Connect Pin-1 (Input) of ICBase-5 (74LS76) to Clock port of 1Hz frequency.
  35. Connect Pin-20 (Input) of ICBase-5 (74LS76) to Pin-6 (Output) of ICBase-4 (74LS32).
  36. Connect Pin-18 (Input) of ICBase-2 (74LS08) to Pin-3 (Output) of ICBase-2 (74LS08).
  37. Connect Output-1 to Pin-19 (Output) of ICBase-5 (74LS76).
  38. Connect Output-2 to Pin-19 (Output) of ICBase-1 (74LS76).
  39. Connect Pin-5 (VCC) of ICBase-5 (74LS76) to VCC Port.