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Nihar Ghadge
Nihar Ghadge
• Created on Apr 27, 2026 • 0 • 0 • 2
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Integrated Circuits Used

74LS90 74LS08

Procedure

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