Lect4 - 2 - EE 316 - Digital Logic Design Lecture 4 Nur A....

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EE 316 - Digital Logic Design Lecture 4 Nur A. Touba University of Texas at Austin
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DESIGNING SINGLE-OUTPUT CIRCUIT Three Main Steps Find switching function that specifies desired behavior Find simplified algebraic expression for function Realize simplified function using available logic elements
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ENGLISH TO BOOLEAN EQUATIONS “Car accelerates if gas pedal pushed and parking break off”
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ENGLISH TO BOOLEAN EQUATIONS “Alarm will ring iff alarm switch on and door not closed, or after 6pm and window not closed”
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DESIGN USING TRUTH TABLE A, B, C represent Binary number N Output = 1 if N 011 2
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PRODUCT-OF-SUMS
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MINTERMS AND MAXTERMS Minterm of n variables Product of n literals, each variable appears once Maxterm of n variables Sum of n literals, each variable appears once
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MINTERM EXPANSION Minterm Expansion or Standard SOP Function written as sum of minterms Example f(A,B,C) = m 3 + m 4 + m 5 + m 6 + m 7 f(A,B,C) = Σ m(3,4,5,6,7)
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This note was uploaded on 11/30/2010 for the course EE 316 taught by Professor Brown during the Fall '08 term at University of Texas.

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Lect4 - 2 - EE 316 - Digital Logic Design Lecture 4 Nur A....

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