Half Adder and Half Subtractor

Ridhima
Ridhima Sinare
• Created on Sep 7, 2022 • 0 • 0 • 3
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Half Adder and Half Subtractor
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Integrated Circuits Used

74LS08 74LS04 74LS32

Description

op1=a not op2=bnot op6= sum and diff a b exor op0=adder carry op12=subt borrow op3=a.bnot op4=anot.b

Procedure

  1. Add IC 74LS08 into ICBase-2 (74LS08).
  2. Add IC 74LS04 into ICBase-1 (74LS04).
  3. Connect Pin-20 (VCC) of ICBase-1 (74LS04) to VCC Port.
  4. Connect Pin-7 (Ground) of ICBase-1 (74LS04) to GND Port.
  5. Connect Pin-1 (Input) of ICBase-1 (74LS04) to Input-1.
  6. Connect Output-1 to Pin-2 (Output) of ICBase-1 (74LS04).
  7. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS08).
  8. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS32).
  9. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS32).
  10. Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS08).
  11. Connect Input-2 to Pin-5 (Input) of ICBase-1 (74LS04).
  12. Connect Output-2 to Pin-6 (Output) of ICBase-1 (74LS04).
  13. Connect VCC Port to ICBase-1 (74LS04).
  14. Connect GND Port to ICBase-1 (74LS04).
  15. Connect Input-1 to ICBase-1 (74LS04).
  16. Connect Input-2 to ICBase-1 (74LS04).
  17. Add IC 74LS32 into ICBase-3 (74LS32).
  18. Connect Input-1 to Pin-1 (Input) of ICBase-2 (74LS08).
  19. Connect Input-3 to Output-1.
  20. Connect Input-4 to Output-2.
  21. Connect Pin-2 (Input) of ICBase-2 (74LS08) to Input-4.
  22. Connect Output-3 to Pin-3 (Output) of ICBase-2 (74LS08).
  23. Connect Pin-4 (Input) of ICBase-2 (74LS08) to Input-2.
  24. Connect Input-3 to Pin-5 (Input) of ICBase-2 (74LS08).
  25. Connect Output-4 to Pin-6 (Output) of ICBase-2 (74LS08).
  26. Connect Input-6 to Output-3.
  27. Connect Input-7 to Output-4.
  28. Connect Pin-1 (Input) of ICBase-3 (74LS32) to Input-6.
  29. Connect Pin-2 (Input) of ICBase-3 (74LS32) to Input-7.
  30. Connect Output-6 to Pin-3 (Output) of ICBase-3 (74LS32).
  31. Connect Pin-15 (Input) of ICBase-2 (74LS08) to Input-1.
  32. Connect Pin-16 (Input) of ICBase-2 (74LS08) to Input-2.
  33. Connect Output-0 to Pin-14 (Output) of ICBase-2 (74LS08).
  34. Connect Input-10 to Output-6.
  35. Connect Input-12 to Output-1.
  36. Connect Pin-19 (Input) of ICBase-2 (74LS08) to Input-12.
  37. Connect Input-2 to Pin-18 (Input) of ICBase-2 (74LS08).
  38. Connect Output-12 to Pin-17 (Output) of ICBase-2 (74LS08).