Demux

Aarti
Aarti D
• Created on Sep 28, 2021 • 0 • 0 • 2
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Demux
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Integrated Circuits Used

74LS139 74LS04

Description

1. 74LS139 Implementation of 1:4 Demux

Procedure

  1. Connect Input-2 to ICBase-2 (74LS139).
  2. Connect Input-1 to ICBase-2 (74LS139).
  3. Connect VCC Port to ICBase-2 (74LS139).
  4. Connect Input-8 to ICBase-4.
  5. Connect Input-9 to ICBase-4.
  6. Connect Input-1 to ICBase-4.
  7. Connect VCC Port to ICBase-4.
  8. Connect VCC Port to ICBase-4.
  9. Connect GND Port to ICBase-4.
  10. Add IC 74LS139 into ICBase-2 (74LS139).
  11. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS139).
  12. Connect GND Port to Pin-8 (Ground) of ICBase-2 (74LS139).
  13. Connect GND Port to Pin-1 (Input) of ICBase-2 (74LS139).
  14. Connect Input-1 to Pin-2 (Input) of ICBase-2 (74LS139).
  15. Add IC 74LS04 into ICBase-3 (74LS04).
  16. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS04).
  17. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS04).
  18. Connect Pin-1 (Input) of ICBase-3 (74LS04) to Pin-4 (Output) of ICBase-2 (74LS139).
  19. Connect Output-4 to Pin-2 (Output) of ICBase-3 (74LS04).
  20. Connect Pin-3 (Input) of ICBase-3 (74LS04) to Pin-5 (Output) of ICBase-2 (74LS139).
  21. Connect Output-3 to Pin-4 (Output) of ICBase-3 (74LS04).
  22. Connect Pin-5 (Input) of ICBase-3 (74LS04) to Pin-6 (Output) of ICBase-2 (74LS139).
  23. Connect Output-2 to Pin-6 (Output) of ICBase-3 (74LS04).
  24. Connect Pin-15 (Input) of ICBase-3 (74LS04) to Pin-7 (Output) of ICBase-2 (74LS139).
  25. Connect Pin-14 (Output) of ICBase-3 (74LS04) to Output-1.
  26. Connect Input-0 to Pin-3 (Input) of ICBase-2 (74LS139).
  27. Connect Output-1 to ICBase-3 (74LS04).