1. Convert all AND gates to NAND gates with AND-NOT
graphic symbols.
2. Convert all OR gates to NAND gates with NOT-OR graphic
symbols.
3. Check all the bubbles in the diagram. For every bubble that is not counteracted by
another bubble along the same line, insert a NOT gate or
complement the input literal
from its original appearance.
Example
- Use NAND gates and NOT gates to implement Z = E’F(AB+C’+D’)+GH
Problem. Implement
the circuit with the truth table
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