How to Design a 3-Bit Priority Encoder Circuit?

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SUMMARY

The discussion focuses on designing a 3-bit priority encoder circuit with specific output conditions based on input states. The outputs are defined as follows: when input X=1, outputs B1=1 and B0=1; when X=0 and Y=1, outputs B1=1 and B0=0; when X=0, Y=0, and Z=1, outputs B1=0 and B2=1; and when all inputs are 0, outputs B1=0 and B0=0. The participants confirm the correctness of the output conditions and suggest verifying the design by tracing the inputs through the circuit.

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  • Understanding of digital logic design
  • Familiarity with priority encoder functionality
  • Knowledge of circuit diagram representation
  • Basic skills in Boolean algebra
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  • Research how to implement a 3-bit priority encoder using logic gates
  • Study the truth table for a 3-bit priority encoder
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Electronics students, digital circuit designers, and engineers working on logic circuit implementations will benefit from this discussion.

fran1942
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Hello, I need to design a circuit (3-bit priority encoder) whereby:

- if input X =1, then outputs B1=1, B0=1
- if inputs X=0, Y=1, then outputs B1=1, B0=0
- if inputs X=0, Y=0, Z=1 then outputs B1=0, B2=1
- if all 3 inputs = 0, then outputs B1=0, B0=0

Would this be the correct way to draw the circuit for this operation ?

Thanks kindly for any help.
 

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fran1942 said:
Hello, I need to design a circuit (3-bit priority encoder) whereby:

- if input X =1, then outputs B1=1, B0=1
- if inputs X=0, Y=1, then outputs B1=1, B0=0
- if inputs X=0, Y=0, Z=1 then outputs B1=0, B2=1
I suppose you mean B0 = 1.

- if all 3 inputs = 0, then outputs B1=0, B0=0

Would this be the correct way to draw the circuit for this operation ?

Thanks kindly for any help.

Can't you just check it by following the inputs through your circuit?
 

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