exp 2 subtractor full 74138

Tanvi
Tanvi Kadu
• Created on Dec 8, 2023 • 0 • 0 • 3
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exp 2 subtractor full 74138
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Integrated Circuits Used

74LS138 74LS20 74LS21

Procedure

  1. Add IC 74LS138 into ICBase-2 (74LS138).
  2. Add IC 74LS20 into ICBase-3 (74LS20).
  3. Connect Pin-7 (Ground) of ICBase-3 (74LS20) to GND Port.
  4. Connect Pin-8 (Ground) of ICBase-2 (74LS138) to GND Port.
  5. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS138).
  6. Connect VCC Port to Pin-6 (Input) of ICBase-2 (74LS138).
  7. Connect Input-2 to Pin-1 (Input) of ICBase-2 (74LS138).
  8. Connect Pin-2 (Input) of ICBase-2 (74LS138) to Input-1.
  9. Connect Input-0 to Pin-3 (Input) of ICBase-2 (74LS138).
  10. Connect GND Port to Pin-4 (Input) of ICBase-2 (74LS138).
  11. Connect Pin-5 (Input) of ICBase-2 (74LS138) to GND Port.
  12. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS20).
  13. Connect Pin-1 (Input) of ICBase-3 (74LS20) to Pin-18 (Output) of ICBase-2 (74LS138).
  14. Connect Pin-2 (Input) of ICBase-3 (74LS20) to Pin-17 (Output) of ICBase-2 (74LS138).
  15. Connect Pin-15 (Output) of ICBase-2 (74LS138) to Pin-4 (Input) of ICBase-3 (74LS20).
  16. Connect Pin-5 (Input) of ICBase-3 (74LS20) to Pin-7 (Output) of ICBase-2 (74LS138).
  17. Connect Output-0 to Pin-6 (Output) of ICBase-3 (74LS20).
  18. Connect Seven segment display 2 to Pin-6 (Output) of ICBase-3 (74LS20).
  19. Connect Pin-19 (Input) of ICBase-3 (74LS20) to Pin-18 (Output) of ICBase-2 (74LS138).
  20. Connect Pin-17 (Output) of ICBase-2 (74LS138) to Pin-18 (Input) of ICBase-3 (74LS20).
  21. Connect Pin-16 (Input) of ICBase-3 (74LS20) to Pin-16 (Output) of ICBase-2 (74LS138).
  22. Connect Pin-7 (Output) of ICBase-2 (74LS138) to Pin-15 (Input) of ICBase-3 (74LS20).
  23. Connect Output-2 to Pin-14 (Output) of ICBase-3 (74LS20).
  24. Add IC 74LS21 into ICBase-5 (74LS21).
  25. Connect GND Port to Pin-7 (Ground) of ICBase-5 (74LS21).
  26. Connect VCC Port to Pin-20 (VCC) of ICBase-5 (74LS21).
  27. Connect Pin-18 (Output) of ICBase-2 (74LS138) to Pin-1 (Input) of ICBase-5 (74LS21).
  28. Connect Pin-2 (Input) of ICBase-5 (74LS21) to Pin-17 (Output) of ICBase-2 (74LS138).
  29. Connect Pin-4 (Input) of ICBase-5 (74LS21) to Pin-16 (Output) of ICBase-2 (74LS138).
  30. Connect Pin-7 (Output) of ICBase-2 (74LS138) to Pin-5 (Input) of ICBase-5 (74LS21).
  31. Connect Output-5 to Pin-6 (Output) of ICBase-5 (74LS21).
  32. Connect Pin-6 (Output) of ICBase-5 (74LS21) to Seven segment display 1.
  33. Connect Seven segment display 1 to ICBase-5 (74LS21).