7490 2

Harsita Sahoo
Harsita Sahoo
• Created on Apr 20, 2026 • 0 • 0 • 3
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7490 2
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Integrated Circuits Used

74LS90 74LS08 74LS04

Procedure

  1. Add IC 74LS90 into ICBase-3 (74LS90).
  2. Add IC 74LS90 into ICBase-2 (74LS90).
  3. Connect Pin-1 (Input) of ICBase-3 (74LS90) to Pin-18 (Output) of ICBase-3 (74LS90).
  4. Connect VCC Port to Pin-5 (VCC) of ICBase-3 (74LS90).
  5. Connect GND Port to Pin-16 (Ground) of ICBase-3 (74LS90).
  6. Connect GND Port to Pin-2 (Input) of ICBase-3 (74LS90).
  7. Connect GND Port to Pin-3 (Input) of ICBase-3 (74LS90).
  8. Connect GND Port to Pin-6 (Input) of ICBase-3 (74LS90).
  9. Connect GND Port to Pin-7 (Input) of ICBase-3 (74LS90).
  10. Connect Seven segment display 2 to Pin-18 (Output) of ICBase-3 (74LS90).
  11. Connect Seven segment display 2 to Pin-15 (Output) of ICBase-3 (74LS90).
  12. Connect Seven segment display 2 to Pin-14 (Output) of ICBase-3 (74LS90).
  13. Connect Seven segment display 2 to Pin-17 (Output) of ICBase-3 (74LS90).
  14. Connect Pin-17 (Output) of ICBase-3 (74LS90) to Pin-20 (Input) of ICBase-2 (74LS90).
  15. Connect VCC Port to Pin-5 (VCC) of ICBase-2 (74LS90).
  16. Connect GND Port to Pin-16 (Ground) of ICBase-2 (74LS90).
  17. Connect GND Port to Pin-2 (Input) of ICBase-2 (74LS90).
  18. Connect GND Port to Pin-3 (Input) of ICBase-2 (74LS90).
  19. Connect GND Port to Pin-7 (Input) of ICBase-2 (74LS90).
  20. Connect GND Port to Pin-6 (Input) of ICBase-2 (74LS90).
  21. Connect Seven segment display 1 to Pin-18 (Output) of ICBase-2 (74LS90).
  22. Connect Seven segment display 1 to Pin-15 (Output) of ICBase-2 (74LS90).
  23. Connect Seven segment display 1 to Pin-14 (Output) of ICBase-2 (74LS90).
  24. Connect Seven segment display 1 to Pin-17 (Output) of ICBase-2 (74LS90).
  25. Add IC 74LS08 into ICBase-1 (74LS08).
  26. Add IC 74LS04 into ICBase-5 (74LS04).
  27. Connect Pin-1 (Input) of ICBase-5 (74LS04) to Pin-17 (Output) of ICBase-2 (74LS90).
  28. Connect Pin-1 (Input) of ICBase-1 (74LS08) to Pin-18 (Output) of ICBase-2 (74LS90).
  29. Connect Pin-2 (Input) of ICBase-1 (74LS08) to Pin-15 (Output) of ICBase-2 (74LS90).
  30. Connect Pin-4 (Input) of ICBase-1 (74LS08) to Pin-3 (Output) of ICBase-1 (74LS08).
  31. Connect Pin-5 (Input) of ICBase-1 (74LS08) to Pin-14 (Output) of ICBase-2 (74LS90).
  32. Connect Pin-15 (Input) of ICBase-1 (74LS08) to Pin-6 (Output) of ICBase-1 (74LS08).
  33. Connect Pin-16 (Input) of ICBase-1 (74LS08) to Pin-2 (Output) of ICBase-5 (74LS04).
  34. Add IC 74LS08 into ICBase-4 (74LS08).
  35. Connect Pin-3 (Input) of ICBase-5 (74LS04) to Pin-15 (Output) of ICBase-3 (74LS90).
  36. Connect Pin-5 (Input) of ICBase-5 (74LS04) to Pin-17 (Output) of ICBase-3 (74LS90).
  37. Connect Pin-1 (Input) of ICBase-4 (74LS08) to Pin-18 (Output) of ICBase-3 (74LS90).
  38. Connect Pin-2 (Input) of ICBase-4 (74LS08) to Pin-4 (Output) of ICBase-5 (74LS04).
  39. Connect Pin-4 (Input) of ICBase-4 (74LS08) to Pin-3 (Output) of ICBase-4 (74LS08).
  40. Connect Pin-5 (Input) of ICBase-4 (74LS08) to Pin-14 (Output) of ICBase-3 (74LS90).
  41. Connect Pin-15 (Input) of ICBase-4 (74LS08) to Pin-6 (Output) of ICBase-4 (74LS08).
  42. Connect Pin-16 (Input) of ICBase-4 (74LS08) to Pin-6 (Output) of ICBase-5 (74LS04).
  43. Connect Pin-19 (Input) of ICBase-1 (74LS08) to Pin-14 (Output) of ICBase-1 (74LS08).
  44. Connect Pin-18 (Input) of ICBase-1 (74LS08) to Pin-14 (Output) of ICBase-4 (74LS08).
  45. Connect Pin-19 (Input) of ICBase-5 (74LS04) to Pin-17 (Output) of ICBase-1 (74LS08).
  46. Connect Pin-19 (Input) of ICBase-4 (74LS08) to Pin-18 (Output) of ICBase-5 (74LS04).
  47. Connect Pin-18 (Input) of ICBase-4 (74LS08) to Clock port of 5Hz frequency.
  48. Connect Pin-20 (Input) of ICBase-3 (74LS90) to Pin-17 (Output) of ICBase-4 (74LS08).
  49. Connect VCC Port to Pin-20 (VCC) of ICBase-5 (74LS04).
  50. Connect GND Port to Pin-7 (Ground) of ICBase-5 (74LS04).
  51. Connect VCC Port to Pin-20 (VCC) of ICBase-1 (74LS08).
  52. Connect GND Port to Pin-7 (Ground) of ICBase-1 (74LS08).