FULL ADDER using 3:8 Decoder IC 74LS138

Shruti
Shruti Todi
• Created on Aug 16, 2021 • 0 • 0 • 2
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FULL ADDER using 3:8 Decoder IC 74LS138
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Integrated Circuits Used

74LS138 74LS20

Description

ASSIGNMENT 2 PART D

Procedure

  1. Add IC 74LS138 into ICBase-2 (74LS138).
  2. Add IC 74LS20 into ICBase-3 (74LS20).
  3. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS138).
  4. Connect Input-11 to Pin-1 (Input) of ICBase-2 (74LS138).
  5. Connect Input-10 to Pin-2 (Input) of ICBase-2 (74LS138).
  6. Connect Input-9 to Pin-3 (Input) of ICBase-2 (74LS138).
  7. Connect GND Port to Pin-8 (Ground) of ICBase-2 (74LS138).
  8. Connect GND Port to Pin-4 (Input) of ICBase-2 (74LS138).
  9. Connect GND Port to Pin-5 (Input) of ICBase-2 (74LS138).
  10. Connect VCC Port to Pin-6 (Input) of ICBase-2 (74LS138).
  11. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS20).
  12. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS20).
  13. Connect Pin-1 (Input) of ICBase-3 (74LS20) to Pin-18 (Output) of ICBase-2 (74LS138).
  14. Connect Pin-2 (Input) of ICBase-3 (74LS20) to Pin-17 (Output) of ICBase-2 (74LS138).
  15. Connect Pin-5 (Input) of ICBase-3 (74LS20) to Pin-7 (Output) of ICBase-2 (74LS138).
  16. Connect Pin-14 (Output) of ICBase-2 (74LS138) to Pin-16 (Input) of ICBase-3 (74LS20).
  17. Connect Output-1 to Pin-6 (Output) of ICBase-3 (74LS20).
  18. Connect Output-0 to Pin-14 (Output) of ICBase-3 (74LS20).
  19. Connect VCC Port to ICBase-3 (74LS20).
  20. Connect Pin-4 (Input) of ICBase-3 (74LS20) to Pin-15 (Output) of ICBase-2 (74LS138).
  21. Connect Pin-7 (Output) of ICBase-2 (74LS138) to Pin-15 (Input) of ICBase-3 (74LS20).
  22. Connect Pin-13 (Output) of ICBase-2 (74LS138) to Pin-18 (Input) of ICBase-3 (74LS20).
  23. Connect Pin-7 (Output) of ICBase-2 (74LS138) to Pin-19 (Input) of ICBase-3 (74LS20).