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Codiode/Problems/Combinational Logic

Two-Variable K-Map: Identify All Groups Including the All-Ones Case

EasyLogic CircuitAnalyze

Logic synthesis tools routinely reduce redundant logic networks down to constant voltage lines to save power and area.

Two distinct 2-variable Karnaugh maps are shown below. Map 1 represents a standard logic function. Map 2 represents a degenerate case where all cells are populated with 1s. The inputs are A and B, where A is the most significant bit.

Map 1 | A \ B | 0 | 1 | |---|---|---| | 0 | 1 | 1 | | 1 | 0 | 0 |

Map 2 | A \ B | 0 | 1 | |---|---|---| | 0 | 1 | 1 | | 1 | 1 | 1 |

Extract the minimal Sum of Products expression for each map. Identify how grouping rules apply when the entire map is covered.

Constraints

  • The variables are A and B.
  • Expressions must be in minimal Sum of Products (SOP) form.
  • Use the tick mark (') for negation, such as A'.

Topics

Boolean AlgebraLogic MinimizationK-Map

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