Draw a logic diagram constructing a 3 × 8 decoder with active-low enable, using a pair of 2 × 4 decoders; also draw a truth table for the configuration.
Draw a logic diagram constructing a 3 × 8 decoder with active-low enable, using a pair of 2 × 4 decoders; also draw a truth table for the configuration.
Chapter22: Sequence Control
Section: Chapter Questions
Problem 6SQ: Draw a symbol for a solid-state logic element AND.
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Draw a logic diagram constructing a 3 × 8 decoder with active-low enable, using a pair of 2 × 4 decoders; also draw a truth table for the configuration.
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Step 1
A circuit device that changes a code into a set of signals, know as decoder. It is a just reverse of encoding. It is simpler to design also.
we are commonly use this type of decoder:
2-to-4 decoder, 3-to-8 decoder and 4-to-16 line binary decoder
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