2:4 decoder (ip pin 13, 12, 11 are A,B,E) (o/p pins 11, 10, 9, 8 are Y0, Y1, Y2, Y3)

Arunima
Arunima
• Created on Mar 8, 2026 • 0 • 0 • 2
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2:4 decoder (ip pin 13, 12, 11 are A,B,E) (o/p pins 11, 10, 9, 8 are Y0, Y1, Y2, Y3)
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Integrated Circuits Used

74LS11 74LS04

Procedure

  1. Add IC 74LS11 into ICBase-1 (74LS11).
  2. Add IC 74LS11 into ICBase-2 (74LS11).
  3. Add IC 74LS04 into ICBase-3 (74LS04).
  4. Connect Pin-20 (VCC) of ICBase-1 (74LS11) to Pin-20 (VCC) of ICBase-2 (74LS11).
  5. Connect Pin-20 (VCC) of ICBase-2 (74LS11) to Pin-20 (VCC) of ICBase-3 (74LS04).
  6. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS04).
  7. Connect Pin-7 (Ground) of ICBase-2 (74LS11) to Pin-7 (Ground) of ICBase-1 (74LS11).
  8. Connect Pin-7 (Ground) of ICBase-3 (74LS04) to Pin-7 (Ground) of ICBase-2 (74LS11).
  9. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS04).
  10. Connect Input-13 to Pin-1 (Input) of ICBase-3 (74LS04).
  11. Connect Input-12 to Pin-3 (Input) of ICBase-3 (74LS04).
  12. Connect Pin-1 (Input) of ICBase-1 (74LS11) to Pin-2 (Output) of ICBase-3 (74LS04).
  13. Connect Pin-2 (Input) of ICBase-1 (74LS11) to Pin-4 (Output) of ICBase-3 (74LS04).
  14. Connect Input-11 to Pin-19 (Input) of ICBase-1 (74LS11).
  15. Connect Output-11 to Pin-18 (Output) of ICBase-1 (74LS11).
  16. Connect Input-12 to Pin-4 (Input) of ICBase-1 (74LS11).
  17. Connect Pin-3 (Input) of ICBase-1 (74LS11) to Pin-2 (Output) of ICBase-3 (74LS04).
  18. Connect Input-11 to Pin-5 (Input) of ICBase-1 (74LS11).
  19. Connect Output-10 to Pin-6 (Output) of ICBase-1 (74LS11).
  20. Connect Input-13 to Pin-15 (Input) of ICBase-1 (74LS11).
  21. Connect Pin-16 (Input) of ICBase-1 (74LS11) to Pin-4 (Output) of ICBase-3 (74LS04).
  22. Connect Input-11 to Pin-17 (Input) of ICBase-1 (74LS11).
  23. Connect Output-9 to Pin-14 (Output) of ICBase-1 (74LS11).
  24. Connect Input-13 to Pin-1 (Input) of ICBase-2 (74LS11).
  25. Connect Input-12 to Pin-2 (Input) of ICBase-2 (74LS11).
  26. Connect Output-8 to Pin-18 (Output) of ICBase-2 (74LS11).
  27. Connect Input-11 to Pin-19 (Input) of ICBase-2 (74LS11).