2 to 4 decoder

Rishikesh
Rishikesh Zadbuke
• Created on Aug 29, 2025 • 1 • 1 • 2
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2 to 4 decoder
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Integrated Circuits Used

74LS04 74LS08

Procedure

  1. Add IC 74LS04 into ICBase-1 (74LS04).
  2. Connect Pin-1 (Input) of ICBase-1 (74LS04) to Input-13.
  3. Connect Pin-3 (Input) of ICBase-1 (74LS04) to Input-12.
  4. Add IC 74LS08 into ICBase-2 (74LS08).
  5. Connect Pin-1 (Input) of ICBase-2 (74LS08) to Pin-2 (Output) of ICBase-1 (74LS04).
  6. Connect Pin-2 (Input) of ICBase-2 (74LS08) to Pin-4 (Output) of ICBase-1 (74LS04).
  7. Connect Pin-4 (Input) of ICBase-2 (74LS08) to Pin-3 (Output) of ICBase-2 (74LS08).
  8. Connect Pin-5 (Input) of ICBase-2 (74LS08) to Input-9.
  9. Connect Output-8 to Pin-6 (Output) of ICBase-2 (74LS08).
  10. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS08).
  11. Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS08).
  12. Connect GND Port to Pin-7 (Ground) of ICBase-1 (74LS04).
  13. Connect Pin-19 (Input) of ICBase-2 (74LS08) to Pin-2 (Output) of ICBase-1 (74LS04).
  14. Connect Pin-18 (Input) of ICBase-2 (74LS08) to Input-12.
  15. Connect Pin-17 (Output) of ICBase-2 (74LS08) to Pin-16 (Input) of ICBase-2 (74LS08).
  16. Connect Output-7 to Pin-14 (Output) of ICBase-2 (74LS08).
  17. Connect Pin-15 (Input) of ICBase-2 (74LS08) to Input-9.
  18. Add IC 74LS08 into ICBase-3 (74LS08).
  19. Connect Pin-1 (Input) of ICBase-3 (74LS08) to Input-13.
  20. Connect Pin-2 (Input) of ICBase-3 (74LS08) to Pin-4 (Output) of ICBase-1 (74LS04).
  21. Connect Pin-4 (Input) of ICBase-3 (74LS08) to Pin-3 (Output) of ICBase-3 (74LS08).
  22. Connect Pin-5 (Input) of ICBase-3 (74LS08) to Input-9.
  23. Connect Output-6 to Pin-6 (Output) of ICBase-3 (74LS08).
  24. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS08).
  25. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS08).
  26. Connect Pin-19 (Input) of ICBase-3 (74LS08) to Input-13.
  27. Connect Pin-18 (Input) of ICBase-3 (74LS08) to Input-12.
  28. Connect Pin-16 (Input) of ICBase-3 (74LS08) to Pin-17 (Output) of ICBase-3 (74LS08).
  29. Connect Pin-15 (Input) of ICBase-3 (74LS08) to Input-9.
  30. Connect Output-5 to Pin-14 (Output) of ICBase-3 (74LS08).
  31. Connect VCC Port to Pin-20 (VCC) of ICBase-1 (74LS04).