UP AND DOWN COUNTER

vaishnavi surwase
vaishnavi surwase
• Created on Nov 10, 2025 • 0 • 0 • 2
Edit Circuit Copy Circuit Try Yourself
UP AND DOWN COUNTER
100%

Integrated Circuits Used

74LS191 74LS00

Procedure

  1. Add IC 74LS191 into ICBase-2 (74LS191).
  2. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS191).
  3. Connect GND Port to Pin-8 (Ground) of ICBase-2 (74LS191).
  4. Connect GND Port to Pin-19 (Input) of ICBase-2 (74LS191).
  5. Connect GND Port to Pin-14 (Input) of ICBase-2 (74LS191).
  6. Connect GND Port to Pin-13 (Input) of ICBase-2 (74LS191).
  7. Connect GND Port to Pin-1 (Input) of ICBase-2 (74LS191).
  8. Add IC 74LS00 into ICBase-3 (74LS00).
  9. Connect Seven segment display 1 to Pin-3 (Output) of ICBase-2 (74LS191).
  10. Connect Seven segment display 1 to Pin-2 (Output) of ICBase-2 (74LS191).
  11. Connect Seven segment display 1 to Pin-6 (Output) of ICBase-2 (74LS191).
  12. Connect Seven segment display 1 to Pin-7 (Output) of ICBase-2 (74LS191).
  13. Connect Pin-1 (Input) of ICBase-3 (74LS00) to Pin-2 (Output) of ICBase-2 (74LS191).
  14. Connect Pin-2 (Input) of ICBase-3 (74LS00) to Pin-7 (Output) of ICBase-2 (74LS191).
  15. Connect Pin-3 (Output) of ICBase-3 (74LS00) to Pin-15 (Input) of ICBase-2 (74LS191).
  16. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS00).
  17. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS00).
  18. Connect GND Port to Pin-4 (Input) of ICBase-2 (74LS191).
  19. Connect VCC Port to Pin-5 (Input) of ICBase-2 (74LS191).
  20. Connect Clock port of 1Hz frequency to Pin-18 (Input) of ICBase-2 (74LS191).