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Why is the output (in the truth table) inverted in a ic 74154 used as a demux?
I am studying Digital Principles and Applications from Malvino and Leach. I have a doubt in the demultiplexer section. This is the image of a 1 to 16 demux. I understand how it works.
So, if ABCD = ...
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How to implement 8-bit 2:1 multiplexers on a PCB?
I need to implement a 2:1 multiplexer for 8-bit data. That is: as inputs it should take two 8-bit numbers and a Select line; and as output an 8-bit number.
I could use two 74HC(T)157s (this is a quad ...