asynchronous 3bit updown counter

Nithin
Nithin Raj R
• Created on Oct 4, 2021 • 0 • 0 • 2
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asynchronous 3bit updown counter
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Integrated Circuits Used

74LS76 74LS86

Procedure

  1. Connect Pin-15 (Output) of ICBase-1 (74LS76) to Pin-4 (Input) of ICBase-3 (74LS86).
  2. Add IC 74LS76 into ICBase-1 (74LS76).
  3. Add IC 74LS76 into ICBase-2 (74LS76).
  4. Add IC 74LS86 into ICBase-3 (74LS86).
  5. Connect Pin-4 (Input) of ICBase-1 (74LS76) to Input-15.
  6. Connect Pin-20 (Input) of ICBase-1 (74LS76) to Input-15.
  7. Connect Pin-13 (Input) of ICBase-1 (74LS76) to Input-15.
  8. Connect Pin-16 (Input) of ICBase-1 (74LS76) to Input-15.
  9. Connect Pin-4 (Input) of ICBase-2 (74LS76) to Input-15.
  10. Connect Pin-20 (Input) of ICBase-2 (74LS76) to Input-15.
  11. Connect Pin-2 (Input) of ICBase-1 (74LS76) to Input-14.
  12. Connect Pin-7 (Input) of ICBase-1 (74LS76) to Input-14.
  13. Connect Pin-2 (Input) of ICBase-2 (74LS76) to Input-14.
  14. Connect Pin-3 (Input) of ICBase-1 (74LS76) to Input-13.
  15. Connect Pin-8 (Input) of ICBase-1 (74LS76) to Input-13.
  16. Connect Pin-3 (Input) of ICBase-2 (74LS76) to Input-13.
  17. Connect Pin-2 (Input) of ICBase-3 (74LS86) to Input-12.
  18. Connect Pin-5 (Input) of ICBase-3 (74LS86) to Input-12.
  19. Connect Pin-1 (Input) of ICBase-1 (74LS76) to Manual clock Port.
  20. Connect Pin-1 (Input) of ICBase-3 (74LS86) to Pin-19 (Output) of ICBase-1 (74LS76).
  21. Connect Pin-6 (Input) of ICBase-1 (74LS76) to Pin-3 (Output) of ICBase-3 (74LS86).
  22. Connect Pin-1 (Input) of ICBase-2 (74LS76) to Pin-6 (Output) of ICBase-3 (74LS86).
  23. Connect Output-15 to Pin-19 (Output) of ICBase-1 (74LS76).
  24. Connect Output-14 to Pin-15 (Output) of ICBase-1 (74LS76).
  25. Connect Output-13 to Pin-19 (Output) of ICBase-2 (74LS76).
  26. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS86).
  27. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS86).
  28. Connect GND Port to Pin-17 (Ground) of ICBase-1 (74LS76).
  29. Connect GND Port to Pin-17 (Ground) of ICBase-2 (74LS76).
  30. Connect VCC Port to Pin-5 (VCC) of ICBase-1 (74LS76).
  31. Connect VCC Port to Pin-5 (VCC) of ICBase-2 (74LS76).