Magnitude Comparator ppt.. You can watch my lectures at: Digital electronics playlist in my youtube channel: https://www.youtube.com/channel/UC_fItK7wBO6zdWHVPIYV8dQ?view_as=subscriber My Website : https://easyninspire.blogspot.com/

2. Combinational Logic Circuits
• Magnitude Comparator

3. Digital Comparator
Digital or Binary Comparators :
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Magnitude Comparator
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5. •
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• For A<B  A’B
• A>B AB’
• A=B  A’B’+AB

6. Logic Circuit

7. 
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8. 2-Bit Magnitude Comparator
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9. A>B: A1B1’ + A0B1’B0’ + A1A0B0’ A=B: (A0 Ex-Nor B0) (A1 Ex-Nor B1)
A<B: A1’B1 + A0’B1B0 + A1’A0’B0

10. Logic Circuit
Similarly try for 3 bit Magnitude Comparator..

11. 4-Bit Magnitude Comparator
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• 3 2 1 0
3 2 1 0
3 3
3 3 2 2
3 3
3 3 2 2
3 3 2 2 1 1
3 3 2 2 1 1 0 0
• 3 3 3 3 2 2 3 3 2 2
1 1 3 3 2 2 1 1 0 0

12. • 3 2 1 0
3 2 1 0
3 3 2 2 1 1 0 0
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3 3
3 3 2 0 2
3 3
3 3 2 0 2
3 3 2 2 1 1
3 3 2 2 1 1 0 0
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3 3 3 3 2 2 3 3 2
1 1 3 3 2 2 1 1 0 0

13. (A3’B3+A3B3’)’ = A3’B3’+A3B3
A3’B3
A3B3’
LogicCircuit

14. In Next Class
• Magnitude Comparators Eg.

15. • A

16. Magnitude Comparator