Lecture15 Logic Gates.ppt
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Logic Gates
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Transcript of Lecture15 Logic Gates.ppt
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Logic Gates
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A Logic Gate and its Truth Table
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A Logic Gate and its Truth Table
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A Logic Gate and its Truth Table
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A Logic Gate and its Truth Table
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A Logic Gate and its Truth Table
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A Logic Circuit
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A Logic CircuitF=ABC+ABC+(C+D)(D+E)=A(B+B)C+CD+CE+DD+DE=
=AC+CD+CE+DE=C(A+D+E)+DETo show that these two circuits have equivalent functions let us simplify the function F=ABC+ABC+(C+D)(D+E)
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Additional Logic Gates Symbols
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Completeness of NAND Logic Gates
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Completeness of NOR Logic Gates
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From Transistors to Logic Gates
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From Transistors to Logic Gates
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De Morgans LawsTwo complementary laws yield equivalent functions:
(ABC)=A+B+C
(A+B+C)=ABC