60 Vehicles - Copy

Raga Varma
Raga Varma
• Created on Apr 24, 2026 • 0 • 0 • 0
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60 Vehicles - Copy
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Description

A toll booth records up to 60 vehicles per session. Initial count is 0. Design a system using IC 7490 to count vehicles.Each vehicle passing generates a pulse. Display count and indicate when 60 vehicles have passed. Explain pros and cons. Mention another solution approach.

Procedure

  1. Add IC 74LS90 into ICBase-1 (74LS90).
  2. Add IC 74LS90 into ICBase-2 (74LS90).
  3. Add IC 74LS08 into ICBase-3 (74LS08).
  4. Connect VCC Port to Pin-5 (VCC) of ICBase-1 (74LS90).
  5. Connect VCC Port to Pin-5 (VCC) of ICBase-2 (74LS90).
  6. Connect GND Port to Pin-16 (Ground) of ICBase-2 (74LS90).
  7. Connect GND Port to Pin-16 (Ground) of ICBase-1 (74LS90).
  8. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS08).
  9. Connect Pin-20 (VCC) of ICBase-3 (74LS08) to VCC Port.
  10. Connect Clock port of 1Hz frequency to Pin-20 (Input) of ICBase-2 (74LS90).
  11. Connect Pin-18 (Output) of ICBase-2 (74LS90) to Pin-1 (Input) of ICBase-2 (74LS90).
  12. Connect Pin-18 (Output) of ICBase-1 (74LS90) to Pin-1 (Input) of ICBase-1 (74LS90).
  13. Connect Pin-17 (Output) of ICBase-2 (74LS90) to Pin-20 (Input) of ICBase-1 (74LS90).
  14. Connect GND Port to Pin-6 (Input) of ICBase-1 (74LS90).
  15. Connect GND Port to Pin-7 (Input) of ICBase-1 (74LS90).
  16. Connect GND Port to Pin-6 (Input) of ICBase-2 (74LS90).
  17. Connect GND Port to Pin-7 (Input) of ICBase-2 (74LS90).
  18. Connect Pin-1 (Input) of ICBase-3 (74LS08) to Pin-14 (Output) of ICBase-1 (74LS90).
  19. Connect Pin-2 (Input) of ICBase-3 (74LS08) to Pin-15 (Output) of ICBase-1 (74LS90).
  20. Connect Pin-2 (Input) of ICBase-1 (74LS90) to Pin-3 (Output) of ICBase-3 (74LS08).
  21. Connect Pin-3 (Input) of ICBase-1 (74LS90) to Pin-3 (Output) of ICBase-3 (74LS08).
  22. Connect Pin-2 (Input) of ICBase-2 (74LS90) to Pin-3 (Output) of ICBase-3 (74LS08).
  23. Connect Pin-3 (Input) of ICBase-2 (74LS90) to Pin-3 (Output) of ICBase-3 (74LS08).
  24. Connect Seven segment display 2 to Pin-17 (Output) of ICBase-1 (74LS90).
  25. Connect Seven segment display 2 to Pin-14 (Output) of ICBase-1 (74LS90).
  26. Connect Seven segment display 2 to Pin-15 (Output) of ICBase-1 (74LS90).
  27. Connect Seven segment display 2 to Pin-18 (Output) of ICBase-1 (74LS90).
  28. Connect Seven segment display 1 to Pin-17 (Output) of ICBase-2 (74LS90).
  29. Connect Seven segment display 1 to Pin-14 (Output) of ICBase-2 (74LS90).
  30. Connect Seven segment display 1 to Pin-15 (Output) of ICBase-2 (74LS90).
  31. Connect Seven segment display 1 to Pin-18 (Output) of ICBase-2 (74LS90).
  32. Connect Clock port of 5Hz frequency to Pin-20 (Input) of ICBase-2 (74LS90).
  33. Connect Clock port of 0.5Hz frequency to Pin-20 (Input) of ICBase-2 (74LS90).