Design a 3:8 Decoder using 5:32 Decoder

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SUMMARY

The discussion focuses on designing a 3:8 decoder utilizing a 5:32 decoder and vice versa. The key takeaway is that to implement a 3:8 decoder, two of the inputs (X3 and X4) of the 5:32 decoder are grounded, allowing for the correct mapping of three inputs to eight outputs. Additionally, the reverse design of a 5:32 decoder using two 3:8 decoders is also addressed, emphasizing the importance of understanding the input-output relationships in digital logic design.

PREREQUISITES
  • Understanding of digital logic design principles
  • Familiarity with decoder functionality and configurations
  • Knowledge of binary number systems
  • Experience with circuit design tools (e.g., Logisim or Multisim)
NEXT STEPS
  • Research the implementation of 3:8 decoders using various configurations
  • Study the design principles of 5:32 decoders
  • Explore the use of grounding inputs in digital circuits
  • Learn about cascading decoders for complex logic designs
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Students and professionals in electrical engineering, digital circuit designers, and anyone interested in understanding decoder configurations and their applications in logic design.

Fatima Hasan
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Homework Statement


a) Design a 3:8 Decoder using 5:32 Decoder.
b) Design a 5:32 Decoder using 3:8 Decoder.

Homework Equations


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The Attempt at a Solution


a)
12.png

b)
23.png

( X3 and X4 are grounded , because we need 3 inputs only )
Could someone check my answer please ?
 

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Are your a and b answers swapped? :smile:
 
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