3x8 decoder function

Ridham
Ridham
• Created on Apr 16, 2026 • 0 • 0 • 0
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3x8 decoder function
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Procedure

  1. Add IC 74LS138 into ICBase-2 (74LS138).
  2. Connect Pin-20 (VCC) of ICBase-2 (74LS138) to VCC Port.
  3. Connect Pin-8 (Ground) of ICBase-2 (74LS138) to GND Port.
  4. Connect Input-3 to Pin-1 (Input) of ICBase-2 (74LS138).
  5. Connect Input-4 to Pin-2 (Input) of ICBase-2 (74LS138).
  6. Connect Input-5 to Pin-3 (Input) of ICBase-2 (74LS138).
  7. Connect Input-10 to Pin-4 (Input) of ICBase-2 (74LS138).
  8. Connect Input-10 to Pin-5 (Input) of ICBase-2 (74LS138).
  9. Connect Input-9 to Pin-6 (Input) of ICBase-2 (74LS138).
  10. Add IC 74LS00 into ICBase-3 (74LS00).
  11. Connect Pin-1 (Input) of ICBase-3 (74LS00) to Pin-17 (Output) of ICBase-2 (74LS138).
  12. Connect Pin-2 (Input) of ICBase-3 (74LS00) to Pin-7 (Output) of ICBase-2 (74LS138).
  13. Connect Output-7 to Pin-3 (Output) of ICBase-3 (74LS00).
  14. Connect Pin-4 (Input) of ICBase-3 (74LS00) to Pin-15 (Output) of ICBase-2 (74LS138).
  15. Connect Pin-5 (Input) of ICBase-3 (74LS00) to Pin-13 (Output) of ICBase-2 (74LS138).
  16. Connect Output-8 to Pin-6 (Output) of ICBase-3 (74LS00).
  17. Connect Pin-20 (VCC) of ICBase-3 (74LS00) to VCC Port.
  18. Connect Pin-7 (Ground) of ICBase-3 (74LS00) to GND Port.