4 Bit Synchronous Counter (UP/DOWN)

SUBHAJIT
SUBHAJIT SARDAR
• Created on Jan 24, 2025 • 0 • 0 • 3
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4 Bit Synchronous Counter (UP/DOWN)
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Integrated Circuits Used

74LS76 74LS08 74LS86

Description

This is a 4-bit synchronous up/down counter that is capable of counting from 0 to 15 and also from 15 to 0, based on the control input at input point 0.

Procedure

  1. Add IC 74LS76 into ICBase-2 (74LS76).
  2. Connect VCC Port to Pin-2 (Input) of ICBase-2 (74LS76).
  3. Connect VCC Port to Pin-3 (Input) of ICBase-2 (74LS76).
  4. Connect VCC Port to Pin-4 (Input) of ICBase-2 (74LS76).
  5. Connect VCC Port to Pin-20 (Input) of ICBase-2 (74LS76).
  6. Connect VCC Port to Pin-5 (VCC) of ICBase-2 (74LS76).
  7. Connect VCC Port to Pin-7 (Input) of ICBase-2 (74LS76).
  8. Connect VCC Port to Pin-8 (Input) of ICBase-2 (74LS76).
  9. Connect GND Port to Pin-17 (Ground) of ICBase-2 (74LS76).
  10. Connect Pin-16 (Input) of ICBase-2 (74LS76) to Pin-19 (Output) of ICBase-2 (74LS76).
  11. Connect Pin-13 (Input) of ICBase-2 (74LS76) to Pin-19 (Output) of ICBase-2 (74LS76).
  12. Add IC 74LS08 into ICBase-3 (74LS08).
  13. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS08).
  14. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS08).
  15. Add IC 74LS76 into ICBase-4 (74LS76).
  16. Connect VCC Port to Pin-2 (Input) of ICBase-4 (74LS76).
  17. Connect VCC Port to Pin-3 (Input) of ICBase-4 (74LS76).
  18. Connect Pin-1 (Input) of ICBase-3 (74LS08) to Pin-19 (Output) of ICBase-2 (74LS76).
  19. Connect Pin-2 (Input) of ICBase-3 (74LS08) to Pin-15 (Output) of ICBase-2 (74LS76).
  20. Connect Pin-4 (Input) of ICBase-4 (74LS76) to Pin-3 (Output) of ICBase-3 (74LS08).
  21. Connect Pin-20 (Input) of ICBase-4 (74LS76) to Pin-3 (Output) of ICBase-3 (74LS08).
  22. Connect VCC Port to Pin-5 (VCC) of ICBase-4 (74LS76).
  23. Connect GND Port to Pin-17 (Ground) of ICBase-4 (74LS76).
  24. Connect VCC Port to Pin-7 (Input) of ICBase-4 (74LS76).
  25. Connect VCC Port to Pin-8 (Input) of ICBase-4 (74LS76).
  26. Connect Pin-4 (Input) of ICBase-3 (74LS08) to Pin-3 (Output) of ICBase-3 (74LS08).
  27. Connect Pin-5 (Input) of ICBase-3 (74LS08) to Pin-19 (Output) of ICBase-4 (74LS76).
  28. Connect Pin-13 (Input) of ICBase-4 (74LS76) to Pin-6 (Output) of ICBase-3 (74LS08).
  29. Connect Pin-16 (Input) of ICBase-4 (74LS76) to Pin-6 (Output) of ICBase-3 (74LS08).
  30. Connect Pin-6 (Input) of ICBase-4 (74LS76) to Clock port of 1Hz frequency.
  31. Connect Pin-1 (Input) of ICBase-4 (74LS76) to Clock port of 1Hz frequency.
  32. Connect Pin-6 (Input) of ICBase-2 (74LS76) to Clock port of 1Hz frequency.
  33. Connect Pin-1 (Input) of ICBase-2 (74LS76) to Clock port of 1Hz frequency.
  34. Add IC 74LS86 into ICBase-5 (74LS86).
  35. Connect VCC Port to Pin-20 (VCC) of ICBase-5 (74LS86).
  36. Connect GND Port to Pin-7 (Ground) of ICBase-5 (74LS86).
  37. Connect Input-0 to Pin-1 (Input) of ICBase-5 (74LS86).
  38. Connect Input-0 to Pin-4 (Input) of ICBase-5 (74LS86).
  39. Connect Input-0 to Pin-19 (Input) of ICBase-5 (74LS86).
  40. Connect Input-0 to Pin-16 (Input) of ICBase-5 (74LS86).
  41. Connect Pin-2 (Input) of ICBase-5 (74LS86) to Pin-19 (Output) of ICBase-2 (74LS76).
  42. Connect Output-0 to Pin-3 (Output) of ICBase-5 (74LS86).
  43. Connect Pin-5 (Input) of ICBase-5 (74LS86) to Pin-15 (Output) of ICBase-2 (74LS76).
  44. Connect Output-1 to Pin-6 (Output) of ICBase-5 (74LS86).
  45. Connect Pin-15 (Input) of ICBase-5 (74LS86) to Pin-19 (Output) of ICBase-4 (74LS76).
  46. Connect Output-2 to Pin-14 (Output) of ICBase-5 (74LS86).
  47. Connect Pin-18 (Input) of ICBase-5 (74LS86) to Pin-15 (Output) of ICBase-4 (74LS76).
  48. Connect Output-3 to Pin-17 (Output) of ICBase-5 (74LS86).