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Samruddhi
Samruddhi Raskar
• Created on Apr 18, 2026 • 0 • 0 • 2
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Integrated Circuits Used

74LS90 74LS08

Procedure

  1. Connect VCC Port to Output-5.
  2. Connect GND Port to Input-10.
  3. Connect Clock port of 0.5Hz frequency to Pin-14 (Output) of ICBase-1 (74LS90).
  4. Connect Clock port of 1Hz frequency to Pin-12 (Input & Output) of ICBase-1 (74LS90).
  5. Connect Output-0 to Pin-12 (Input & Output) of ICBase-1 (74LS90).
  6. Connect GND Port to Pin-2 (Input) of ICBase-1 (74LS90).
  7. Connect GND Port to Pin-3 (Input) of ICBase-1 (74LS90).
  8. Connect GND Port to Pin-6 (Input) of ICBase-1 (74LS90).
  9. Connect GND Port to Pin-7 (Input) of ICBase-1 (74LS90).
  10. Connect Output-1 to Pin-9 (Input & Output) of ICBase-1 (74LS90).
  11. Connect Output-2 to Pin-8 (Input & Output) of ICBase-1 (74LS90).
  12. Connect Output-3 to Pin-11 (Input & Output) of ICBase-1 (74LS90).
  13. Connect Pin-14 (Output) of ICBase-2 (74LS90) to Pin-11 (Input & Output) of ICBase-1 (74LS90).
  14. Connect Clock port of 1Hz frequency to Pin-12 (Input & Output) of ICBase-2 (74LS90).
  15. Connect Pin-1 (Input) of ICBase-3 (74LS08) to Pin-9 (Input & Output) of ICBase-2 (74LS90).
  16. Connect Pin-2 (Input) of ICBase-3 (74LS08) to Pin-8 (Input & Output) of ICBase-2 (74LS90).
  17. Connect Pin-2 (Input) of ICBase-2 (74LS90) to Pin-3 (Output) of ICBase-3 (74LS08).
  18. Connect Pin-3 (Input) of ICBase-2 (74LS90) to Pin-3 (Output) of ICBase-3 (74LS08).
  19. Add IC 74LS90 into ICBase-2 (74LS90).
  20. Add IC 74LS08 into ICBase-3 (74LS08).
  21. Connect VCC Port to Pin-5 (VCC) of ICBase-1 (74LS90).
  22. Connect VCC Port to Pin-5 (VCC) of ICBase-2 (74LS90).
  23. Connect VCC Port to Pin-5 (Input) of ICBase-3 (74LS08).
  24. Add IC 74LS90 into ICBase-1 (74LS90).
  25. Connect GND Port to Pin-7 (Input) of ICBase-2 (74LS90).
  26. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS08).
  27. Connect GND Port to Pin-6 (Input) of ICBase-2 (74LS90).
  28. Connect GND Port to Pin-6 (Output) of ICBase-3 (74LS08).