Full substractor using 74138 (NAND)

Abhishek
Abhishek Deshpande
• Created on Dec 4, 2024 • 0 • 0 • 3
Edit Circuit Copy Circuit Try Yourself
Full substractor using 74138 (NAND)
100%

Integrated Circuits Used

74LS138 74LS00 74LS32

Procedure

  1. Connect Pin-8 (Ground) of ICBase-1 (74LS138) to GND Port.
  2. Connect Pin-20 (VCC) of ICBase-1 (74LS138) to VCC Port.
  3. Connect Pin-1 (Input) of ICBase-1 (74LS138) to Input-9.
  4. Connect Pin-2 (Input) of ICBase-1 (74LS138) to Input-10.
  5. Connect Pin-3 (Input) of ICBase-1 (74LS138) to Input-11.
  6. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS00).
  7. Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS00).
  8. Connect GND Port to Pin-4 (Input) of ICBase-1 (74LS138).
  9. Connect GND Port to Pin-5 (Input) of ICBase-1 (74LS138).
  10. Connect VCC Port to Pin-6 (Input) of ICBase-1 (74LS138).
  11. Connect Pin-1 (Input) of ICBase-2 (74LS00) to Pin-18 (Output) of ICBase-1 (74LS138).
  12. Connect Pin-2 (Input) of ICBase-2 (74LS00) to Pin-17 (Output) of ICBase-1 (74LS138).
  13. Connect Pin-1 (Input) of ICBase-3 (74LS32) to Pin-3 (Output) of ICBase-2 (74LS00).
  14. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS32).
  15. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS32).
  16. Connect Pin-15 (Output) of ICBase-1 (74LS138) to Pin-4 (Input) of ICBase-2 (74LS00).
  17. Connect Pin-5 (Input) of ICBase-2 (74LS00) to Pin-7 (Output) of ICBase-1 (74LS138).
  18. Connect Pin-2 (Input) of ICBase-3 (74LS32) to Pin-6 (Output) of ICBase-2 (74LS00).
  19. Connect Output-9 to Pin-3 (Output) of ICBase-3 (74LS32).
  20. Connect Pin-4 (Input) of ICBase-3 (74LS32) to Pin-3 (Output) of ICBase-2 (74LS00).
  21. Connect Pin-19 (Input) of ICBase-2 (74LS00) to Pin-16 (Output) of ICBase-1 (74LS138).
  22. Connect Pin-18 (Input) of ICBase-2 (74LS00) to Pin-7 (Output) of ICBase-1 (74LS138).
  23. Connect Pin-5 (Input) of ICBase-3 (74LS32) to Pin-17 (Output) of ICBase-2 (74LS00).
  24. Connect Output-8 to Pin-6 (Output) of ICBase-3 (74LS32).
  25. Add IC 74LS138 into ICBase-1 (74LS138).
  26. Add IC 74LS00 into ICBase-2 (74LS00).
  27. Add IC 74LS32 into ICBase-3 (74LS32).