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Rishika Agarwal
Rishika Agarwal
• Created on Apr 21, 2026 • 0 • 0 • 3
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Integrated Circuits Used

74LS90 74LS08 74LS05

Procedure

  1. Add IC 74LS90 into ICBase-1 (74LS90).
  2. Add IC 74LS08 into ICBase-2 (74LS08).
  3. Add IC 74LS05 into ICBase-3 (74LS05).
  4. Connect VCC Port to Pin-5 (VCC) of ICBase-1 (74LS90).
  5. Connect Clock port of 1Hz frequency to Pin-20 (Input) of ICBase-1 (74LS90).
  6. Connect Pin-16 (Ground) of ICBase-1 (74LS90) to GND Port.
  7. Connect Pin-1 (Input) of ICBase-1 (74LS90) to Pin-18 (Output) of ICBase-1 (74LS90).
  8. Connect Pin-1 (Input) of ICBase-3 (74LS05) to Pin-15 (Output) of ICBase-1 (74LS90).
  9. Add IC 74LS08 into ICBase-4 (74LS08).
  10. Connect Pin-1 (Input) of ICBase-2 (74LS08) to Pin-2 (Output) of ICBase-3 (74LS05).
  11. Connect Pin-2 (Input) of ICBase-2 (74LS08) to Pin-14 (Output) of ICBase-1 (74LS90).
  12. Connect Pin-1 (Input) of ICBase-4 (74LS08) to Pin-3 (Output) of ICBase-2 (74LS08).
  13. Connect Pin-2 (Input) of ICBase-4 (74LS08) to Pin-18 (Output) of ICBase-1 (74LS90).
  14. Connect Output-0 to Pin-3 (Output) of ICBase-4 (74LS08).
  15. Connect VCC Port to Pin-20 (VCC) of ICBase-4 (74LS08).
  16. Connect GND Port to Pin-7 (Ground) of ICBase-4 (74LS08).
  17. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS05).
  18. Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS08).
  19. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS08).
  20. Connect Pin-20 (VCC) of ICBase-3 (74LS05) to VCC Port.