'mod 225 using 7490

Karan
Karan Kshirsagar
• Created on Oct 21, 2024 • 0 • 0 • 1
Edit Circuit Copy Circuit Try Yourself
'mod 225 using 7490
100%

Integrated Circuits Used

74LS21

Description

mod 225 up counter using ic74ls 90

Procedure

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