Lecture_6

# Lecture_6 - Digital logic, logic families logic symbols...

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1 Digital logic, logic families CHM6158C - Lecture 6 logic symbols truth tables transitors transistor-transitor logic (ttl) integrated circuits

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2 Boolean algebra/logic 0 or 1 Binary code F ALSE or T RUE Boolean algebra or logic 2 inputs 1 output AND OR XOR Symbols Truth tables
3 Logic gates AND gate Inputs: A, B Output: A*B OR gate Output: A+B ABA + B 000 011 101 111 * B 010 100 A B Output often denoted as Q.

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4 Logic gates NOT gate Ao u t 10 01 NAND gate (not and) ABA * B 001 011 101 110 inversion AND, followed by NOT
5 NOR gate ABA + B 00 01 10 11 Fill in truth table Logic gates XOR gate (exclusively OR) + B 000 011 101 110

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6 Combined gates ABQ 00 01 10 11 Fill in truth table How does this gate behave?
7 Transistor examples (100112) Which way does I B flow? Common collector circuit V in = LOW V out = …. . V in = HIGH V out = …. .

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8 Transistor example

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## This note was uploaded on 07/30/2011 for the course CHM 6158 taught by Professor Polfer during the Spring '11 term at University of Florida.

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Lecture_6 - Digital logic, logic families logic symbols...

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