The purpose of this lab was to design a basic decoder circuit with ActiveLow
signals, that would interact with a logic function and show that this multiplexer and
decoders can be implemented in much simpler fashion using a Kmap design. This was
done by first designing a decoder, evaluating the logic and creating a circuit design for it.
From there the lab was designed to show us how to create a multiplexer by adding a logic
function onto the decoder. After this through a kmap you see by using a Kmap to get a
least product of sum term so show how to be more efficient which overall is what a
computer engineer is all about.
The first part of the lab that needed to be designed is the decoder. The decoder
was comprised of three inverters and four NAND gates. The inverted signals and NAND
gates reverse the signals and provide an ActiveLow signal as oppose to the active high
signals that are usually created by a decoder. (See chart 1 for circuit design). The second
part of the lab was an addition to the decoder designed in the first part. By inverting the
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 Winter '07
 Dr.K
 Boolean Algebra, Logical conjunction, Algebraic logic, Digital circuits, Logical disjunction

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