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Logic Gates. NOT Gate. Also known as an inverter. AND Gate. OR Gate. XOR Gate. What are digital circuits?. System of logic components that model some Boolean expression Inputs  Digital Circuit  Output Example: ~x · y = z. Example – Circuit  Expression.
                
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NOT Gate • Also known as an inverter
What are digital circuits? • System of logic components that model some Boolean expression • Inputs  Digital Circuit  Output • Example: ~x · y = z
Example – Circuit  Expression • What Boolean function does the following digital circuit model? • Answer: ~x + ~y = z
Example – Circuit  Expression • What Boolean function does the following digital circuit model? • Answer: f = xy + yz + ~xz
Your Turn • What Boolean function does the following digital circuit model?
Example – Expression  Circuit • Draw the logic circuit that corresponds to the following Boolean expression: f = ~(xy+z)
Example – Expression  Circuit • Draw the logic circuit that corresponds to the following Boolean expression: f = ~(x+z)·(x+y)
Your Turn • Draw the logic circuit that corresponds to the following Boolean expression: f = xy + ~xy + ~(yz)
NAND Gate • ~(xy)
NOR GATE • ~(x+y)