Full Adder Using IC74LS138

Pushkar
Pushkar
Created on Sep 24, 2025 0 0 2
Full Adder Using IC74LS138
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Integrated Circuits Used

Procedure

  1. Connect GND Port to Pin-8 (Input & Output) of ICBase-3.
  2. Connect VCC Port to Pin-20 (Input & Output) of ICBase-3.
  3. Connect GND Port to Pin-4 (Input & Output) of ICBase-3.
  4. Connect GND Port to Pin-5 (Input & Output) of ICBase-3.
  5. Connect VCC Port to Pin-6 (Input & Output) of ICBase-3.
  6. Connect Input-0 to Pin-1 (Input & Output) of ICBase-3.
  7. Connect Input-1 to Pin-2 (Input & Output) of ICBase-3.
  8. Connect Input-2 to Pin-3 (Input & Output) of ICBase-3.
  9. Add IC 74LS00 into ICBase-4 (74LS00).
  10. Connect GND Port to Pin-7 (Ground) of ICBase-4 (74LS00).
  11. Connect VCC Port to Pin-20 (VCC) of ICBase-4 (74LS00).
  12. Connect Pin-1 (Input) of ICBase-4 (74LS00) to Pin-18 (Input & Output) of ICBase-3.
  13. Connect Pin-2 (Input) of ICBase-4 (74LS00) to Pin-17 (Input & Output) of ICBase-3.
  14. Connect Pin-4 (Input) of ICBase-4 (74LS00) to Pin-15 (Input & Output) of ICBase-3.
  15. Add IC 74LS32 into ICBase-2 (74LS32).
  16. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS32).
  17. Connect Pin-15 (Input) of ICBase-2 (74LS32) to Pin-3 (Output) of ICBase-4 (74LS00).
  18. Connect Pin-16 (Input) of ICBase-2 (74LS32) to Pin-6 (Output) of ICBase-4 (74LS00).
  19. Connect Pin-5 (Input) of ICBase-4 (74LS00) to Pin-7 (Input & Output) of ICBase-3.
  20. Connect Pin-19 (Input) of ICBase-4 (74LS00) to Pin-7 (Input & Output) of ICBase-3.
  21. Connect Pin-18 (Input) of ICBase-4 (74LS00) to Pin-13 (Input & Output) of ICBase-3.
  22. Connect Pin-19 (Input) of ICBase-2 (74LS32) to Pin-17 (Output) of ICBase-4 (74LS00).
  23. Connect Pin-16 (Input) of ICBase-4 (74LS00) to Pin-16 (Input & Output) of ICBase-3.
  24. Connect Pin-15 (Input) of ICBase-4 (74LS00) to Pin-14 (Input & Output) of ICBase-3.
  25. Connect Pin-18 (Input) of ICBase-2 (74LS32) to Pin-14 (Output) of ICBase-4 (74LS00).