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How many 2 to 4 Line decoders are required to construct a 5 to 32 line decoder?
in Digital Logic by Boss (36.8k points) | 527 views
0
8 decoders required ?
0
11 decoder
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Balaji Jegan can you explain a little?

Ashwin Kulkarni  i'm confused b/w 8 or 9

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Anu007 how?

+2

8 at 1st level 2 at 2nd level and 1 at 3rd level.

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@Anu sir no need of this much decoders .
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Using $8(2*4)$ decoders we can make $5*32$ decoder.
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Direct way we can implement and get 11.

But still there is scope of minimising it :(

I got 11 directly but we can still eliminate some decoders because many lines will be wasted.
+1
yes but 11 is correct
+2
Yes, you are correct!! No need to go in that much depth for such questions :(
0
11 , 2:4 decoders
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Ashwin Kulkarni i don't think 9 are possible

1 Answer

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Best answer

Check this ckt,

by Boss (10.9k points)
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What will happen with 2 output remaining in 1 2x4 decoder
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