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• Created on Apr 30, 2026 • 0 • 0 • 2
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Integrated Circuits Used

74LS90 74LS08

Procedure

  1. Add IC 74LS90 into ICBase-3 (74LS90).
  2. Connect GND Port to Pin-16 (Ground) of ICBase-3 (74LS90).
  3. Connect GND Port to Pin-2 (Input) of ICBase-3 (74LS90).
  4. Connect GND Port to Pin-3 (Input) of ICBase-3 (74LS90).
  5. Connect VCC Port to Pin-5 (VCC) of ICBase-3 (74LS90).
  6. Connect Pin-18 (Output) of ICBase-3 (74LS90) to Pin-1 (Input) of ICBase-3 (74LS90).
  7. Connect Pin-17 (Output) of ICBase-3 (74LS90) to Pin-20 (Input & Output) of ICBase-2.
  8. Connect GND Port to Pin-2 (Input & Output) of ICBase-2.
  9. Connect GND Port to Pin-3 (Input & Output) of ICBase-2.
  10. Connect VCC Port to Pin-5 (Input & Output) of ICBase-2.
  11. Connect GND Port to Pin-16 (Input & Output) of ICBase-2.
  12. Connect Seven segment display 1 to Pin-18 (Output) of ICBase-3 (74LS90).
  13. Connect Seven segment display 1 to Pin-15 (Output) of ICBase-3 (74LS90).
  14. Connect Seven segment display 1 to Pin-17 (Output) of ICBase-3 (74LS90).
  15. Connect Clock port of 5Hz frequency to Pin-20 (Input) of ICBase-3 (74LS90).
  16. Connect Pin-1 (Input) of ICBase-4 (74LS08) to Pin-14 (Output) of ICBase-3 (74LS90).
  17. Connect Pin-2 (Input) of ICBase-4 (74LS08) to Pin-15 (Output) of ICBase-3 (74LS90).
  18. Connect Pin-6 (Input) of ICBase-3 (74LS90) to Pin-3 (Output) of ICBase-4 (74LS08).
  19. Connect Pin-7 (Input) of ICBase-3 (74LS90) to Pin-3 (Output) of ICBase-4 (74LS08).
  20. Connect Pin-18 (Input & Output) of ICBase-2 to Pin-1 (Input & Output) of ICBase-2.
  21. Connect Seven segment display 2 to Pin-18 (Input & Output) of ICBase-2.
  22. Connect Seven segment display 2 to Pin-17 (Input & Output) of ICBase-2.
  23. Connect Seven segment display 2 to Pin-15 (Input & Output) of ICBase-2.
  24. Connect Seven segment display 2 to Pin-14 (Input & Output) of ICBase-2.
  25. Add IC 74LS08 into ICBase-4 (74LS08).
  26. Connect Pin-16 (Input & Output) of ICBase-2 to Pin-4 (Input) of ICBase-4 (74LS08).
  27. Connect Pin-14 (Input & Output) of ICBase-2 to Pin-5 (Input) of ICBase-4 (74LS08).
  28. Connect VCC Port to Pin-20 (VCC) of ICBase-4 (74LS08).
  29. Connect GND Port to Pin-7 (Ground) of ICBase-4 (74LS08).
  30. Connect Pin-19 (Input) of ICBase-4 (74LS08) to Pin-6 (Output) of ICBase-4 (74LS08).
  31. Connect Pin-17 (Input & Output) of ICBase-2 to Pin-18 (Input) of ICBase-4 (74LS08).
  32. Connect Pin-6 (Input & Output) of ICBase-2 to Pin-17 (Output) of ICBase-4 (74LS08).
  33. Connect Pin-17 (Output) of ICBase-4 (74LS08) to Pin-7 (Input & Output) of ICBase-2.
  34. Connect Seven segment display 1 to Pin-14 (Output) of ICBase-3 (74LS90).