full adder and subtractor using mux IC 74138

Sharayu
Sharayu Fugare
• Created on Dec 14, 2024 • 0 • 0 • 2
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full adder and subtractor using mux IC 74138
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Integrated Circuits Used

74LS138 74LS20

Procedure

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