3 BIT SYNCHRONOUS DOWNCOUNTER

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VG Drawings
• Created on Dec 30, 2024 • 0 • 0 • 2
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3 BIT SYNCHRONOUS DOWNCOUNTER
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Integrated Circuits Used

74LS76 74LS08

Procedure

  1. Connect Manual clock Port to Pin-1 (Input) of ICBase-1 (74LS76).
  2. Connect Pin-1 (Input) of ICBase-2 (74LS76) to Manual clock Port.
  3. Connect Manual clock Port to Pin-6 (Input) of ICBase-1 (74LS76).
  4. Connect Pin-5 (VCC) of ICBase-1 (74LS76) to VCC Port.
  5. Connect VCC Port to Pin-4 (Input) of ICBase-1 (74LS76).
  6. Connect Pin-20 (Input) of ICBase-1 (74LS76) to VCC Port.
  7. Connect VCC Port to Pin-5 (VCC) of ICBase-2 (74LS76).
  8. Connect VCC Port to Pin-8 (Input) of ICBase-1 (74LS76).
  9. Connect Pin-7 (Input) of ICBase-1 (74LS76) to VCC Port.
  10. Connect VCC Port to Pin-3 (Input) of ICBase-1 (74LS76).
  11. Connect Pin-2 (Input) of ICBase-1 (74LS76) to VCC Port.
  12. Connect VCC Port to Pin-2 (Input) of ICBase-2 (74LS76).
  13. Connect Pin-3 (Input) of ICBase-2 (74LS76) to VCC Port.
  14. Connect GND Port to Pin-17 (Ground) of ICBase-1 (74LS76).
  15. Connect Pin-17 (Ground) of ICBase-2 (74LS76) to GND Port.
  16. Add IC 74LS76 into ICBase-1 (74LS76).
  17. Add IC 74LS76 into ICBase-2 (74LS76).
  18. Add IC 74LS08 into ICBase-3 (74LS08).
  19. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS08).
  20. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS08).
  21. Connect Pin-1 (Input) of ICBase-3 (74LS08) to Pin-18 (Output) of ICBase-1 (74LS76).
  22. Connect Pin-2 (Input) of ICBase-3 (74LS08) to Pin-14 (Output) of ICBase-1 (74LS76).
  23. Connect Output-0 to Pin-19 (Output) of ICBase-1 (74LS76).
  24. Connect Pin-15 (Output) of ICBase-1 (74LS76) to Output-1.
  25. Connect Pin-16 (Input) of ICBase-1 (74LS76) to Pin-18 (Output) of ICBase-1 (74LS76).
  26. Connect Pin-13 (Input) of ICBase-1 (74LS76) to Pin-18 (Output) of ICBase-1 (74LS76).
  27. Connect Pin-20 (Input) of ICBase-2 (74LS76) to Pin-3 (Output) of ICBase-3 (74LS08).
  28. Connect Pin-4 (Input) of ICBase-2 (74LS76) to Pin-3 (Output) of ICBase-3 (74LS08).
  29. Connect Output-2 to Pin-19 (Output) of ICBase-2 (74LS76).