4 to 16 Decoder Using IC 74138

Akshay
Akshay Valsetwar
• Created on Dec 28, 2021 • 0 • 0 • 2
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4 to 16 Decoder Using IC 74138
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Integrated Circuits Used

74LS138 74LS04

Procedure

  1. Connect Input-11 to Pin-1 (Input) of ICBase-2 (74LS138).
  2. Connect Pin-2 (Input) of ICBase-2 (74LS138) to Input-10.
  3. Connect Input-9 to Pin-3 (Input) of ICBase-2 (74LS138).
  4. Connect Pin-4 (Input) of ICBase-2 (74LS138) to GND Port.
  5. Connect GND Port to Pin-5 (Input) of ICBase-2 (74LS138).
  6. Connect GND Port to Pin-8 (Ground) of ICBase-2 (74LS138).
  7. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS138).
  8. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS04).
  9. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS04).
  10. Connect Input-11 to Pin-1 (Input) of ICBase-4 (74LS138).
  11. Connect Input-10 to Pin-2 (Input) of ICBase-4 (74LS138).
  12. Connect Input-9 to Pin-3 (Input) of ICBase-4 (74LS138).
  13. Connect Pin-1 (Input) of ICBase-3 (74LS04) to Input-7.
  14. Connect Pin-6 (Input) of ICBase-2 (74LS138) to Pin-2 (Output) of ICBase-3 (74LS04).
  15. Connect Output-0 to Pin-19 (Output) of ICBase-2 (74LS138).
  16. Connect Output-1 to Pin-18 (Output) of ICBase-2 (74LS138).
  17. Connect Output-2 to Pin-17 (Output) of ICBase-2 (74LS138).
  18. Connect Pin-16 (Output) of ICBase-2 (74LS138) to Output-3.
  19. Connect Output-4 to Pin-15 (Output) of ICBase-2 (74LS138).
  20. Connect Pin-14 (Output) of ICBase-2 (74LS138) to Output-5.
  21. Connect Output-6 to Pin-13 (Output) of ICBase-2 (74LS138).
  22. Connect Output-7 to Pin-7 (Output) of ICBase-2 (74LS138).
  23. Connect GND Port to Pin-4 (Input) of ICBase-4 (74LS138).
  24. Connect GND Port to Pin-5 (Input) of ICBase-4 (74LS138).
  25. Connect Pin-6 (Input) of ICBase-4 (74LS138) to Input-7.
  26. Connect Output-15 to Pin-7 (Output) of ICBase-4 (74LS138).
  27. Connect GND Port to Pin-8 (Ground) of ICBase-4 (74LS138).
  28. Connect VCC Port to Pin-20 (VCC) of ICBase-4 (74LS138).
  29. Connect Output-8 to Pin-19 (Output) of ICBase-4 (74LS138).
  30. Connect Output-9 to Pin-18 (Output) of ICBase-4 (74LS138).
  31. Connect Output-10 to Pin-17 (Output) of ICBase-4 (74LS138).
  32. Connect Output-11 to Pin-16 (Output) of ICBase-4 (74LS138).
  33. Connect Pin-15 (Output) of ICBase-4 (74LS138) to Output-12.
  34. Connect Pin-14 (Output) of ICBase-4 (74LS138) to Output-13.
  35. Connect Pin-13 (Output) of ICBase-4 (74LS138) to Output-14.
  36. Add IC 74LS138 into ICBase-2 (74LS138).
  37. Add IC 74LS04 into ICBase-3 (74LS04).
  38. Add IC 74LS138 into ICBase-4 (74LS138).