Karnaug Maps

By Paulo Lopes, paulo.lopes@tecnico.ulisboa.pt .

This is a demonstration if interactive Karnaugh maps.

Number of Variables

Truth Table

Copy past a line with the truth table values to the input box and press enter, or fill directly the truth table.

Truth table

The most significant bits of the minterm are the line and the least significant the column, so the table is filled row-wise.

2D Karnaugh Map

Click on a term in the simplified expression to see it in the Karnaugh Map.

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Click on a Minterm on the Karnaugh Map to find related prime implicants or insert it on the box.

The most significant bits of the minterm are the line and the least significant the column.

map2D

Prime Implicants of the selected Minterm:

Click on the implicant to select it on the map.

3D Karnaugh Map

Click and drag on the map3DShape to rotate the map3DShape. Drag right to left to rotate around XX and up to down to rotate around YY. The X is the most significant axes followed by Y and Z. Note that Z goes down instead of up. Click on the spheres to select the mini-term.

map3DShape
Rotation angles
YY Rotation: (degrees) XX Rotation: (degrees)