Explain the functioning of a 38decoder. You should draw its truth tab

Question

Explain the functioning of a 38decoder. You should draw its truth table and explain its logic diagram with the help of example input.

27 Apr 2023

Answer :

Word Count : 395

A 3×8 decoder is a combinational circuit that takes a 3-bit binary input and decodes it into one of eight unique output lines. Each output corresponds to a specific combination of the three input bits, with only one output line being active at any given time.

Truth Table:

A 3×8 decoder has 3 input bits (A, B, C) and 8 output lines (Y0, Y1, Y2, ..., Y7). The truth table is as follows:

_________ _________ ____ ___ ______ _________ _________.
_______ ___ ______ _________ ______ _____ _________ _______ __________ ________.
__________ __________ ______ ____ _________.
_____ ___ _________ ____ __________ ___ ________.
___ ________ ________ _____ ____ _______ ______ __________ _____ ___ _________ ______.
____ ________ ________ _____ _____ ______ _____ _____.
____ _______ _______ _____ ___ _________ _____.
________ __________ ________ ________ _________ _________ ________ ____.
_______ ______ _______ _______ ________ ____ _________ ______.
________ ________ __________ _________ ____ _________ ________ ___.
_______ ____ ___ __________ _______ ______ ______.
__________ ___ ________ __________ ______ __________.
_______ ___ ___ ______ ____ ______ ___ ____.
______ ______ ___ ______ _________ ____ __________ ________ ____.
________ _________ ____ _____ __________ ________ ___ ____ ____ ____ ________.
_________ ___ ______ __________ ___.
___ _______ _____ _____ ____.
________ _______ __________ ________ _________ _____ _________ _________ _________.
__________ __________ _______ ______ __________ ______ ___ _________ __________ ___ ___ _____.
________ _________ ________ ___ ____ ________ ___ _________.
_______ ______ ________ ______ ________ ______ ____ ___ ____.
_________ ___ ______ ________ _______ ___.
______ ________ ______ _____ __________ ____ ______ _________ ____.
_____ ________ ______ ____ ___ ____ ______ ________ _______ ________ _____ ____.
___ _______ _____ _________ ______ ________ ________ _________ ____ ___.
____ ____ ________ _______ _____ _______ _________ __________ _______ ______.
_________ ______ ___ ________ ______ ____ _______ ______.
_____ _________ _____ ___ _________ ___ ________ _______ _________ _________ ________ _____.
_____ _________ ________ ______ ____ _____ ____ _________ __________ _____.
______ __________ _____ ____ ______ ______ ________ _________ _________.
________ ____ ________ __________ _________.
___ ________ __________ __________ ______ ________ __________ _____ ____.
____ _____ _______ ___ ____ _________ _____ _______ ________ ________ ____.
_____ ______ ___ _____ _______ _________.
___ ___ ________ ___ ____ ________ _______.
______ ______ ____ ____.
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A	B	C	Y0	Y1	Y2	Y3	Y4	Y5	Y6	Y7
0	0	0	1	0	0	0