Priyanshu (full subtractor using IC 74138)

Om
Om Nikam
• Created on Jan 3, 2023 • 0 • 0 • 3
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Priyanshu (full subtractor using IC 74138)
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Integrated Circuits Used

74LS00 74LS32 74LS138

Description

IC's used : IC 74138 (3:8 decoder) IC 7400 (NAND gate) IC 7432 (OR gate)

Procedure

  1. Add IC 74LS00 into ICBase-2 (74LS00).
  2. Add IC 74LS32 into ICBase-3 (74LS32).
  3. Add IC 74LS138 into ICBase-1 (74LS138).
  4. Connect VCC Port to Pin-20 (VCC) of ICBase-1 (74LS138).
  5. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS00).
  6. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS32).
  7. Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS00).
  8. Connect GND Port to Pin-8 (Ground) of ICBase-1 (74LS138).
  9. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS32).
  10. Connect GND Port to Pin-4 (Input) of ICBase-1 (74LS138).
  11. Connect GND Port to Pin-5 (Input) of ICBase-1 (74LS138).
  12. Connect VCC Port to Pin-6 (Input) of ICBase-1 (74LS138).
  13. Connect Pin-1 (Input) of ICBase-2 (74LS00) to Pin-18 (Output) of ICBase-1 (74LS138).
  14. Connect Pin-2 (Input) of ICBase-2 (74LS00) to Pin-17 (Output) of ICBase-1 (74LS138).
  15. Connect Pin-1 (Input) of ICBase-3 (74LS32) to Pin-3 (Output) of ICBase-2 (74LS00).
  16. Connect Pin-4 (Input) of ICBase-2 (74LS00) to Pin-15 (Output) of ICBase-1 (74LS138).
  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-1 to Pin-3 (Output) of ICBase-3 (74LS32).
  20. Connect Pin-19 (Input) of ICBase-2 (74LS00) to Pin-18 (Output) of ICBase-1 (74LS138).
  21. Connect Pin-18 (Input) of ICBase-2 (74LS00) to Pin-17 (Output) of ICBase-1 (74LS138).
  22. Connect Pin-4 (Input) of ICBase-3 (74LS32) to Pin-17 (Output) of ICBase-2 (74LS00).
  23. Connect Pin-16 (Input) of ICBase-2 (74LS00) to Pin-16 (Output) of ICBase-1 (74LS138).
  24. Connect Pin-15 (Input) of ICBase-2 (74LS00) to Pin-7 (Output) of ICBase-1 (74LS138).
  25. Connect Pin-5 (Input) of ICBase-3 (74LS32) to Pin-14 (Output) of ICBase-2 (74LS00).
  26. Connect Output-0 to Pin-6 (Output) of ICBase-3 (74LS32).
  27. Connect Pin-3 (Input) of ICBase-1 (74LS138) to Input-2.
  28. Connect Input-1 to Pin-2 (Input) of ICBase-1 (74LS138).
  29. Connect Pin-1 (Input) of ICBase-1 (74LS138) to Input-0.