Karnaugh Map (or K-map)
Simplification
SUHAIL T A
LECTURER IN ECE
AL- AMEEN ENGG.
COLLEGE, SHAORANUR
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Karnaugh Map (or K-map)
Simplification
Provides a systematic method for simplifying a
Boolean expression or a truth table function
The K map can produce the simplest SOP or POS
expression possible
It is easy to use, visual, fast and familiarity with
Boolean laws is not required.
The K map is a table consisting of N =2n cells,
where n is the number of input variables.
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1. Look for adjacent cells, that is, above or to the side of a cell. Diagonal
cells are not adjacent
2. Group (circle) the two 1’s in the column
3. Find the variable(s) top and/or side which are the same for the group,
Write this as the Boolean result. It is B in our case.
4. Ignore variable(s) which are not the same for a cell group. In our case A
varies, is both 1 and 0, ignore Boolean A.
5. Ignore any variable not associated with cells containing 1’s. B' has no
ones under it. Ignore B‘
6. Result Output = B
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Example:
Write the Boolean expression for the Karnaugh map below.
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Example:
Write the Boolean expression for the truth table below.
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Example:
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EXAMPLE
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EXAMPLE 2
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EXAMPLE
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