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Swaroop
Swaroop Karnewar
• Created on Nov 11, 2025 • 0 • 0 • 2
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Integrated Circuits Used

74LS138 74LS20

Procedure

  1. Add IC 74LS138 into ICBase-1 (74LS138).
  2. Add IC 74LS20 into ICBase-2 (74LS20).
  3. Add IC 74LS20 into ICBase-3 (74LS20).
  4. Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS20).
  5. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS20).
  6. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS20).
  7. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS20).
  8. Connect GND Port to Pin-8 (Ground) of ICBase-1 (74LS138).
  9. Connect VCC Port to Pin-20 (VCC) of ICBase-1 (74LS138).
  10. Connect Pin-1 (Input) of ICBase-1 (74LS138) to Input-0.
  11. Connect Pin-2 (Input) of ICBase-1 (74LS138) to Input-1.
  12. Connect Pin-3 (Input) of ICBase-1 (74LS138) to Input-2.
  13. Connect GND Port to Pin-4 (Input) of ICBase-1 (74LS138).
  14. Connect GND Port to Pin-5 (Input) of ICBase-1 (74LS138).
  15. Connect VCC Port to Pin-6 (Input) of ICBase-1 (74LS138).