Full Adder using NAND logic gates

Vasavi
Vasavi Kotpalliwar
• Created on May 18, 2021 • 0 • 0 • 1
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Full Adder using NAND logic gates
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Integrated Circuits Used

74LS00

Description

3 - bit Full Adder using 3 NAND gates. For input section, pin no. 10 - A pin no. 8 - B pin no. 6 - Z For output section, pin no. 7 - sum pin no. 5 - carry When only one i/p is 1 then sum = 1 , carry = 0. When any two i/p are 1 then sum = 0, carry = 1. When all three i/p are 1 then sum = 1, carry = 1.

Procedure

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