full adder using NAND gates

shreyash
shreyash kamble
• Created on Jul 16, 2025 • 0 • 0 • 1
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full adder using NAND gates
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Integrated Circuits Used

74LS00

Description

input are xyz respectively. there are total 9 NAND gates. the gates are in U pattern. 1 2 3 4 in first ic. 5 6 7 8 in second ic and 9 in last ic. for out put, 6 is sum and 5 is carry.

Procedure

  1. Connect Pin-1 (Input) of ICBase-1 (74LS00) to Input-13.
  2. Connect Pin-2 (Input) of ICBase-1 (74LS00) to Input-12.
  3. Connect Pin-4 (Input) of ICBase-1 (74LS00) to Pin-3 (Output) of ICBase-1 (74LS00).
  4. Connect Pin-5 (Input) of ICBase-1 (74LS00) to Input-13.
  5. Connect Pin-15 (Input) of ICBase-1 (74LS00) to Input-12.
  6. Connect Pin-16 (Input) of ICBase-1 (74LS00) to Pin-3 (Output) of ICBase-1 (74LS00).
  7. Connect VCC Port to Pin-20 (VCC) of ICBase-1 (74LS00).
  8. Connect GND Port to Pin-7 (Ground) of ICBase-1 (74LS00).
  9. Connect Pin-19 (Input) of ICBase-1 (74LS00) to Pin-6 (Output) of ICBase-1 (74LS00).
  10. Connect Pin-18 (Input) of ICBase-1 (74LS00) to Pin-14 (Output) of ICBase-1 (74LS00).
  11. Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS00).
  12. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS00).
  13. Connect Pin-2 (Input) of ICBase-2 (74LS00) to Input-11.
  14. Connect Pin-1 (Input) of ICBase-2 (74LS00) to Pin-17 (Output) of ICBase-1 (74LS00).
  15. Connect Pin-4 (Input) of ICBase-2 (74LS00) to Pin-3 (Output) of ICBase-2 (74LS00).
  16. Connect Pin-5 (Input) of ICBase-2 (74LS00) to Pin-17 (Output) of ICBase-1 (74LS00).
  17. Connect Pin-16 (Input) of ICBase-2 (74LS00) to Pin-3 (Output) of ICBase-2 (74LS00).
  18. Connect Pin-15 (Input) of ICBase-2 (74LS00) to Input-11.
  19. Connect Pin-19 (Input) of ICBase-2 (74LS00) to Pin-6 (Output) of ICBase-2 (74LS00).
  20. Connect Pin-18 (Input) of ICBase-2 (74LS00) to Pin-14 (Output) of ICBase-2 (74LS00).
  21. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS00).
  22. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS00).
  23. Connect Pin-1 (Input) of ICBase-3 (74LS00) to Pin-3 (Output) of ICBase-2 (74LS00).
  24. Connect Pin-2 (Input) of ICBase-3 (74LS00) to Pin-3 (Output) of ICBase-1 (74LS00).
  25. Connect Output-6 to Pin-17 (Output) of ICBase-2 (74LS00).
  26. Connect Output-5 to Pin-3 (Output) of ICBase-3 (74LS00).
  27. Add IC 74LS00 into ICBase-3 (74LS00).
  28. Add IC 74LS00 into ICBase-2 (74LS00).
  29. Add IC 74LS00 into ICBase-1 (74LS00).