BCD to Excess -3 code converter using logic gates

Tapabrata
Tapabrata Paul
• Created on Mar 9, 2022 • 0 • 0 • 1
Edit Circuit Copy Circuit Try Yourself
BCD to Excess -3 code converter using logic gates
100%

Integrated Circuits Used

74LS20

Procedure

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