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Kiran
Kiran Ghate
• Created on Nov 9, 2025 • 0 • 0 • 2
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Integrated Circuits Used

74LS90 74LS20

Procedure

  1. Add IC 74LS90 into ICBase-2 (74LS90).
  2. Add IC 74LS90 into ICBase-3 (74LS90).
  3. Connect Pin-5 (VCC) of ICBase-2 (74LS90) to VCC Port.
  4. Connect Pin-5 (VCC) of ICBase-3 (74LS90) to VCC Port.
  5. Connect GND Port to Pin-16 (Ground) of ICBase-3 (74LS90).
  6. Connect Pin-16 (Ground) of ICBase-2 (74LS90) to GND Port.
  7. Connect Pin-20 (Input) of ICBase-2 (74LS90) to Clock port of 5Hz frequency.
  8. Connect GND Port to Pin-6 (Input) of ICBase-2 (74LS90).
  9. Connect GND Port to Pin-7 (Input) of ICBase-2 (74LS90).
  10. Connect Pin-18 (Output) of ICBase-2 (74LS90) to Pin-1 (Input) of ICBase-2 (74LS90).
  11. Connect Pin-18 (Output) of ICBase-2 (74LS90) to Seven segment display 1.
  12. Connect Pin-15 (Output) of ICBase-2 (74LS90) to Seven segment display 1.
  13. Connect Pin-14 (Output) of ICBase-2 (74LS90) to Seven segment display 1.
  14. Connect Pin-17 (Output) of ICBase-2 (74LS90) to Seven segment display 1.
  15. Connect Pin-17 (Output) of ICBase-2 (74LS90) to Pin-20 (Input) of ICBase-3 (74LS90).
  16. Connect GND Port to Pin-6 (Input) of ICBase-3 (74LS90).
  17. Connect GND Port to Pin-7 (Input) of ICBase-3 (74LS90).
  18. Connect Pin-18 (Output) of ICBase-3 (74LS90) to Seven segment display 2.
  19. Connect Pin-15 (Output) of ICBase-3 (74LS90) to Seven segment display 2.
  20. Connect Seven segment display 2 to Pin-14 (Output) of ICBase-3 (74LS90).
  21. Connect Pin-17 (Output) of ICBase-3 (74LS90) to Seven segment display 2.
  22. Connect Pin-18 (Output) of ICBase-3 (74LS90) to Pin-1 (Input) of ICBase-3 (74LS90).
  23. Add IC 74LS20 into ICBase-4 (74LS20).
  24. Connect GND Port to Pin-7 (Ground) of ICBase-4 (74LS20).
  25. Connect VCC Port to Pin-20 (VCC) of ICBase-4 (74LS20).
  26. Connect Pin-15 (Output) of ICBase-2 (74LS90) to Pin-1 (Input) of ICBase-4 (74LS20).
  27. Connect Pin-14 (Output) of ICBase-2 (74LS90) to Pin-2 (Input) of ICBase-4 (74LS20).
  28. Connect Pin-18 (Output) of ICBase-3 (74LS90) to Pin-4 (Input) of ICBase-4 (74LS20).
  29. Connect Pin-17 (Output) of ICBase-3 (74LS90) to Pin-5 (Input) of ICBase-4 (74LS20).
  30. Connect Pin-6 (Output) of ICBase-4 (74LS20) to Pin-3 (Input) of ICBase-2 (74LS90).
  31. Connect Pin-6 (Output) of ICBase-4 (74LS20) to Pin-2 (Input) of ICBase-2 (74LS90).
  32. Connect Pin-6 (Output) of ICBase-4 (74LS20) to Pin-2 (Input) of ICBase-3 (74LS90).
  33. Connect Pin-6 (Output) of ICBase-4 (74LS20) to Pin-3 (Input) of ICBase-3 (74LS90).