binary to gray code by using ic 74138

pratik wachkawade
pratik wachkawade
• Created on Oct 25, 2026 • 0 • 0 • 0
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binary to gray code by using ic 74138
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Procedure

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