MOD-77 DECADE COUNTER 7490

Aditya
Aditya Sakure
• Created on Dec 5, 2021 • 0 • 0 • 2
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MOD-77 DECADE COUNTER 7490
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Integrated Circuits Used

74LS90 74LS21

Procedure

  1. Add IC 74LS90 into ICBase-4 (74LS90).
  2. Add IC 74LS90 into ICBase-5 (74LS90).
  3. Connect VCC Port to Pin-5 (VCC) of ICBase-4 (74LS90).
  4. Connect GND Port to Pin-16 (Ground) of ICBase-4 (74LS90).
  5. Connect VCC Port to Pin-5 (VCC) of ICBase-5 (74LS90).
  6. Connect GND Port to Pin-16 (Ground) of ICBase-5 (74LS90).
  7. Connect Pin-20 (Input) of ICBase-5 (74LS90) to Pin-17 (Output) of ICBase-4 (74LS90).
  8. Connect Output-0 to Pin-18 (Output) of ICBase-4 (74LS90).
  9. Connect Output-1 to Pin-15 (Output) of ICBase-4 (74LS90).
  10. Connect Output-2 to Pin-14 (Output) of ICBase-4 (74LS90).
  11. Connect Output-3 to Pin-17 (Output) of ICBase-4 (74LS90).
  12. Connect Seven segment display 1 to Pin-18 (Output) of ICBase-4 (74LS90).
  13. Connect Seven segment display 1 to Pin-15 (Output) of ICBase-4 (74LS90).
  14. Connect Seven segment display 1 to Pin-14 (Output) of ICBase-4 (74LS90).
  15. Connect Seven segment display 1 to Pin-17 (Output) of ICBase-4 (74LS90).
  16. Connect Seven segment display 2 to Pin-18 (Output) of ICBase-5 (74LS90).
  17. Connect Output-5 to Pin-18 (Output) of ICBase-5 (74LS90).
  18. Connect Seven segment display 2 to Pin-15 (Output) of ICBase-5 (74LS90).
  19. Connect Output-6 to Pin-15 (Output) of ICBase-5 (74LS90).
  20. Connect Seven segment display 2 to Pin-14 (Output) of ICBase-5 (74LS90).
  21. Connect Output-7 to Pin-14 (Output) of ICBase-5 (74LS90).
  22. Connect Seven segment display 2 to Pin-17 (Output) of ICBase-5 (74LS90).
  23. Connect Output-8 to Pin-17 (Output) of ICBase-5 (74LS90).
  24. Connect Pin-18 (Output) of ICBase-5 (74LS90) to Pin-1 (Input) of ICBase-5 (74LS90).
  25. Connect Pin-18 (Output) of ICBase-4 (74LS90) to Pin-1 (Input) of ICBase-4 (74LS90).
  26. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS21).
  27. Connect Input-0 to Pin-6 (Input) of ICBase-4 (74LS90).
  28. Connect Input-0 to Pin-7 (Input) of ICBase-4 (74LS90).
  29. Connect Input-0 to Pin-6 (Input) of ICBase-5 (74LS90).
  30. Connect Input-0 to Pin-7 (Input) of ICBase-5 (74LS90).
  31. Add IC 74LS21 into ICBase-3 (74LS21).
  32. Connect Clock port of 10Hz frequency to Pin-20 (Input) of ICBase-4 (74LS90).
  33. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS21).
  34. Connect Pin-1 (Input) of ICBase-3 (74LS21) to Pin-18 (Output) of ICBase-4 (74LS90).
  35. Connect Pin-2 (Input) of ICBase-3 (74LS21) to Pin-18 (Output) of ICBase-5 (74LS90).
  36. Connect Pin-4 (Input) of ICBase-3 (74LS21) to Pin-15 (Output) of ICBase-4 (74LS90).
  37. Connect Pin-5 (Input) of ICBase-3 (74LS21) to Pin-15 (Output) of ICBase-5 (74LS90).
  38. Connect Pin-16 (Input) of ICBase-3 (74LS21) to Pin-14 (Output) of ICBase-4 (74LS90).
  39. Connect Pin-18 (Input) of ICBase-3 (74LS21) to Pin-14 (Output) of ICBase-5 (74LS90).
  40. Connect Pin-15 (Input) of ICBase-3 (74LS21) to Pin-6 (Output) of ICBase-3 (74LS21).
  41. Connect Pin-2 (Input) of ICBase-4 (74LS90) to Pin-14 (Output) of ICBase-3 (74LS21).
  42. Connect Pin-3 (Input) of ICBase-4 (74LS90) to Pin-14 (Output) of ICBase-3 (74LS21).
  43. Connect Pin-2 (Input) of ICBase-5 (74LS90) to Pin-14 (Output) of ICBase-3 (74LS21).
  44. Connect Pin-3 (Input) of ICBase-5 (74LS90) to Pin-14 (Output) of ICBase-3 (74LS21).
  45. Connect VCC Port to Pin-19 (Input) of ICBase-3 (74LS21).