7490

Harsita Sahoo
Harsita Sahoo
• Created on Apr 20, 2026 • 0 • 0 • 1
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7490
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Integrated Circuits Used

74LS90

Procedure

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