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aashna kaur
aashna kaur
• Created on Apr 20, 2026 • 0 • 0 • 2
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Integrated Circuits Used

74LS90 74LS08

Procedure

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