8 Bit Comparator Using 74LS85

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Preview of 8 Bit Comparator Using 74LS85 with 74LS85 ICs
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Tutorial

Start by tapping on Next button.

1. Click on 'Next' button to Add Two 74LS85 IC

Click on 'Next' button to Add Two 74LS85 IC

2. Click on 'Next' button to Connect GND and VCC of ICs

Click on 'Next' button to Connect GND and VCC of ICs

3. Click on 'Next' button to Connect 'A0' to Pin-10 of IC-1 of 74LS85

Click on 'Next' button to Connect 'A0' to Pin-10 of IC-1 of 74LS85

4. Click on 'Next' button to Connect 'A1' to Pin-12 of IC-1 of 74LS85

Click on 'Next' button to Connect 'A1' to Pin-12 of IC-1 of 74LS85

5. Click on 'Next' button to Connect 'A2' to Pin-13 of IC-1 of 74LS85

Click on 'Next' button to Connect 'A2' to Pin-13 of IC-1 of 74LS85

6. Click on 'Next' button to Connect 'A3' to Pin-15 of IC-1 of 74LS85

Click on 'Next' button to Connect 'A3' to Pin-15 of IC-1 of 74LS85

7. Click on 'Next' button to Connect 'A4' to Pin-10 of IC-2 of 74LS85

Click on 'Next' button to Connect 'A4' to Pin-10 of IC-2 of 74LS85

8. Click on 'Next' button to Connect 'A5' to Pin-12 of IC-2 of 74LS85

Click on 'Next' button to Connect 'A5' to Pin-12 of IC-2 of 74LS85

9. Click on 'Next' button to Connect 'A6' to Pin-13 of IC-2 of 74LS85

Click on 'Next' button to Connect 'A6' to Pin-13 of IC-2 of 74LS85

10. Click on 'Next' button to Connect 'A7' to Pin-15 of IC-2 of 74LS85

Click on 'Next' button to Connect 'A7' to Pin-15 of IC-2 of 74LS85

11. Click on 'Next' button to Connect 'B0' to Pin-9 of IC-1 of 74LS85

Click on 'Next' button to Connect 'B0' to Pin-9 of IC-1 of 74LS85

12. Click on 'Next' button to Connect 'B1' to Pin-11 of IC-1 of 74LS85

Click on 'Next' button to Connect 'B1' to Pin-11 of IC-1 of 74LS85

13. Click on 'Next' button to Connect 'B2' to Pin-14 of IC-1 of 74LS85

Click on 'Next' button to Connect 'B2' to Pin-14 of IC-1 of 74LS85

14. Click on 'Next' button to Connect 'B3' to Pin-1 of IC-1 of 74LS85

Click on 'Next' button to Connect 'B3' to Pin-1 of IC-1 of 74LS85

15. Click on 'Next' button to Connect 'B4' to Pin-9 of IC-2 of 74LS85

Click on 'Next' button to Connect 'B4' to Pin-9 of IC-2 of 74LS85

16. Click on 'Next' button to Connect 'B5' to Pin-11 of IC-2 of 74LS85

Click on 'Next' button to Connect 'B5' to Pin-11 of IC-2 of 74LS85

17. Click on 'Next' button to Connect 'B6' to Pin-14 of IC-2 of 74LS85

Click on 'Next' button to Connect 'B6' to Pin-14 of IC-2 of 74LS85

18. Click on 'Next' button to Connect 'B7' to Pin-1 of IC-2 of 74LS85

Click on 'Next' button to Connect 'B7' to Pin-1 of IC-2 of 74LS85

19. Click on 'Next' button to Connect Pin-2 to GND

Click on 'Next' button to Connect Pin-2 to GND

20. Click on 'Next' button to Connect Pin-3 to VCC

Click on 'Next' button to Connect Pin-3 to VCC

21. Click on 'Next' button to Connect Pin-4 to GND

Click on 'Next' button to Connect Pin-4 to GND

22. Click on 'Next' button to Connect Pin-5 of IC-1 to Pin-4 of IC-2

Click on 'Next' button to Connect Pin-5 of IC-1 to Pin-4 of IC-2

23. Click on 'Next' button to Connect Pin-6 of IC-1 to Pin-3 of IC-2

Click on 'Next' button to Connect Pin-6 of IC-1 to Pin-3 of IC-2

24. Click on 'Next' button to Connect Pin-7 of IC-1 to Pin-2 of IC-2

Click on 'Next' button to Connect Pin-7 of IC-1 to Pin-2 of IC-2

25. Click on 'Next' button to Connect Pin-7 of IC-2 to Output port as 'A<B'

Click on 'Next' button to Connect Pin-7 of IC-2 to Output port as 'A<B'

26. Click on 'Next' button to Connect Pin-6 of IC-2 to Output port as 'A=B'

Click on 'Next' button to Connect Pin-6 of IC-2 to Output port as 'A=B'

27. Click on 'Next' button to Connect Pin-5 of IC-2 to Output port as 'A>B'

Click on 'Next' button to Connect Pin-5 of IC-2 to Output port as 'A>B'

Done

You have completed the tutorial. Power on the circuit to test the behavior.

Step-by-Step Procedure

  1. Click on 'Next' button to Add Two 74LS85 IC
  2. Click on 'Next' button to Connect GND and VCC of ICs
  3. Click on 'Next' button to Connect 'A0' to Pin-10 of IC-1 of 74LS85
  4. Click on 'Next' button to Connect 'A1' to Pin-12 of IC-1 of 74LS85
  5. Click on 'Next' button to Connect 'A2' to Pin-13 of IC-1 of 74LS85
  6. Click on 'Next' button to Connect 'A3' to Pin-15 of IC-1 of 74LS85
  7. Click on 'Next' button to Connect 'A4' to Pin-10 of IC-2 of 74LS85
  8. Click on 'Next' button to Connect 'A5' to Pin-12 of IC-2 of 74LS85
  9. Click on 'Next' button to Connect 'A6' to Pin-13 of IC-2 of 74LS85
  10. Click on 'Next' button to Connect 'A7' to Pin-15 of IC-2 of 74LS85
  11. Click on 'Next' button to Connect 'B0' to Pin-9 of IC-1 of 74LS85
  12. Click on 'Next' button to Connect 'B1' to Pin-11 of IC-1 of 74LS85
  13. Click on 'Next' button to Connect 'B2' to Pin-14 of IC-1 of 74LS85
  14. Click on 'Next' button to Connect 'B3' to Pin-1 of IC-1 of 74LS85
  15. Click on 'Next' button to Connect 'B4' to Pin-9 of IC-2 of 74LS85
  16. Click on 'Next' button to Connect 'B5' to Pin-11 of IC-2 of 74LS85
  17. Click on 'Next' button to Connect 'B6' to Pin-14 of IC-2 of 74LS85
  18. Click on 'Next' button to Connect 'B7' to Pin-1 of IC-2 of 74LS85
  19. Click on 'Next' button to Connect Pin-2 to GND
  20. Click on 'Next' button to Connect Pin-3 to VCC
  21. Click on 'Next' button to Connect Pin-4 to GND
  22. Click on 'Next' button to Connect Pin-5 of IC-1 to Pin-4 of IC-2
  23. Click on 'Next' button to Connect Pin-6 of IC-1 to Pin-3 of IC-2
  24. Click on 'Next' button to Connect Pin-7 of IC-1 to Pin-2 of IC-2
  25. Click on 'Next' button to Connect Pin-7 of IC-2 to Output port as 'A<B'
  26. Click on 'Next' button to Connect Pin-6 of IC-2 to Output port as 'A=B'
  27. Click on 'Next' button to Connect Pin-5 of IC-2 to Output port as 'A>B'

Block Diagram

Block diagram representing pin diagram of 8 Bit Comparator Using 74LS85 with 74LS85 ICs

ICs used in this circuit with pin diagram



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