mod 40 counter

Hardik
Hardik
• Created on Apr 17, 2026 • 0 • 0 • 1
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mod 40 counter
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Integrated Circuits Used

74LS90

Procedure

  1. Add IC 74LS90 into ICBase-1 (74LS90).
  2. Add IC 74LS90 into ICBase-2 (74LS90).
  3. Connect VCC Port to Pin-5 (VCC) of ICBase-1 (74LS90).
  4. Connect VCC Port to Pin-5 (VCC) of ICBase-2 (74LS90).
  5. Connect GND Port to Pin-16 (Ground) of ICBase-1 (74LS90).
  6. Connect Pin-16 (Ground) of ICBase-2 (74LS90) to GND Port.
  7. Connect Pin-20 (Input) of ICBase-2 (74LS90) to Pin-17 (Output) of ICBase-1 (74LS90).
  8. Connect Pin-1 (Input) of ICBase-1 (74LS90) to Pin-18 (Output) of ICBase-1 (74LS90).
  9. Connect Pin-1 (Input) of ICBase-2 (74LS90) to Pin-18 (Output) of ICBase-2 (74LS90).
  10. Connect Seven segment display 1 to Pin-18 (Output) of ICBase-1 (74LS90).
  11. Connect Seven segment display 1 to Pin-15 (Output) of ICBase-1 (74LS90).
  12. Connect Seven segment display 1 to Pin-14 (Output) of ICBase-1 (74LS90).
  13. Connect Seven segment display 1 to Pin-17 (Output) of ICBase-1 (74LS90).
  14. Connect Seven segment display 2 to Pin-18 (Output) of ICBase-2 (74LS90).
  15. Connect Seven segment display 2 to Pin-15 (Output) of ICBase-2 (74LS90).
  16. Connect Seven segment display 2 to Pin-14 (Output) of ICBase-2 (74LS90).
  17. Connect Seven segment display 2 to Pin-17 (Output) of ICBase-2 (74LS90).
  18. Connect Manual clock Port to Pin-20 (Input) of ICBase-1 (74LS90).
  19. Connect GND Port to Pin-6 (Input) of ICBase-2 (74LS90).
  20. Connect GND Port to Pin-7 (Input) of ICBase-2 (74LS90).
  21. Connect GND Port to Pin-6 (Input) of ICBase-1 (74LS90).
  22. Connect GND Port to Pin-7 (Input) of ICBase-1 (74LS90).
  23. Connect Pin-2 (Input) of ICBase-2 (74LS90) to Pin-14 (Output) of ICBase-2 (74LS90).
  24. Connect Pin-3 (Input) of ICBase-2 (74LS90) to Pin-14 (Output) of ICBase-2 (74LS90).
  25. Connect Pin-2 (Input) of ICBase-1 (74LS90) to Pin-14 (Output) of ICBase-2 (74LS90).
  26. Connect Pin-3 (Input) of ICBase-1 (74LS90) to Pin-14 (Output) of ICBase-2 (74LS90).
  27. Connect Output-0 to Pin-14 (Output) of ICBase-2 (74LS90).