Full Adder Using NAND

Keyur
Keyur Oak
• Created on Aug 18, 2021 • 0 • 0 • 2
Edit Circuit Copy Circuit Try Yourself
Full Adder Using NAND
100%

Integrated Circuits Used

74LS138 74LS20

Procedure

  1. Connect Pin-20 (VCC) of ICBase-2 (74LS138) to ICBase-2 (74LS138).
  2. Connect VCC Port to ICBase-4.
  3. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS20).
  4. Connect Pin-3 (Input) of ICBase-2 (74LS138) to Input-8.
  5. Connect Input-9 to Pin-2 (Input) of ICBase-2 (74LS138).
  6. Connect Input-10 to Pin-1 (Input) of ICBase-2 (74LS138).
  7. Connect Pin-1 (Input) of ICBase-3 (74LS20) to Pin-18 (Output) of ICBase-2 (74LS138).
  8. Connect Pin-2 (Input) of ICBase-3 (74LS20) to Pin-17 (Output) of ICBase-2 (74LS138).
  9. Connect Pin-4 (Input) of ICBase-3 (74LS20) to Pin-15 (Output) of ICBase-2 (74LS138).
  10. Connect Pin-5 (Input) of ICBase-3 (74LS20) to Pin-7 (Output) of ICBase-2 (74LS138).
  11. Connect Output-1 to Pin-6 (Output) of ICBase-3 (74LS20).
  12. Connect Pin-19 (Input) of ICBase-3 (74LS20) to Pin-7 (Output) of ICBase-2 (74LS138).
  13. Connect Pin-18 (Input) of ICBase-3 (74LS20) to Pin-13 (Output) of ICBase-2 (74LS138).
  14. Connect Pin-16 (Input) of ICBase-3 (74LS20) to Pin-14 (Output) of ICBase-2 (74LS138).
  15. Connect Pin-15 (Input) of ICBase-3 (74LS20) to Pin-16 (Output) of ICBase-2 (74LS138).
  16. Connect Output-0 to Pin-14 (Output) of ICBase-3 (74LS20).
  17. Connect Pin-18 (Input & Output) of ICBase-4 to ICBase-4.
  18. Add IC 74LS138 into ICBase-2 (74LS138).
  19. Add IC 74LS20 into ICBase-3 (74LS20).
  20. Connect VCC Port to ICBase-3 (74LS20).
  21. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS20).
  22. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS138).
  23. Connect GND Port to Pin-8 (Ground) of ICBase-2 (74LS138).
  24. Connect GND Port to Pin-5 (Input) of ICBase-2 (74LS138).
  25. Connect GND Port to Pin-4 (Input) of ICBase-2 (74LS138).
  26. Connect VCC Port to Pin-6 (Input) of ICBase-2 (74LS138).
  27. Connect VCC Port to ICBase-1.