# cp1_lect_6 - Combinational Circuits Find the output of the...

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Combinational Circuits Find the output of the following circuit Answer: ( x+y )y 1 x y x + y y ( x + y ) y __ y

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Combinational Circuits Find the output of the following circuit Answer: xy 2 x y x y x y x y _ _ ___
Combinational Circuits Draw logic circuits for the following Boolean algebraic expressions a) x + y 3 x y __ x x + y Output =~x + y

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Combinational Circuits Write the circuits for the following Boolean algebraic expressions b) ( x + y ) x 4 x y _______ x + y x + y ( x + y ) x
Writing xor using and/or/not x y (x + y)( xy ) 5 x y x y 1 1 0 1 0 1 0 1 1 0 0 0 x y x + y xy xy ( x + y )(xy) ____

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Logical Completeness Can implement ANY truth table with AND, OR, NOT. A B C D 0 0 0 0 0 0 1 0 0 1 0 1 0 1 1 0 1 0 0 0 1 0 1 1 1 1 0 0 1 1 1 0 1. AND combinations that yield a "1" in the truth table. 2. OR the results of the AND gates. A B C 0 0 0 0 1 1 1 0 1 1 1 0 Try this:
Construct the logic table for these circuits.

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Can you make a NOT gate from an NAND? A Q 0 1 1 0
Can you make an AND gate from an NAND?

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