The 74139 dual four-line demultiplexer functions as a decoder if _____ – McqOptions

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1.	The 74139 dual four-line demultiplexer functions as a decoder if ________.
A.	the line is grounded
B.	data input is on the line
C.	data input is on the A0 line
D.	the A0 line is grounded
Answer» B. data input is on the line

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