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Chapter 3-Logic Gates II PUC, MDRPUC, Hassan 1 | P a g e Chapter-3 LOGIC GATES Introduction: Gate: A Gate is a simply an electronic circuit which operates on one or more input signals and always produces an output signal. Gates are digital (t wo state) circuits because the input and output signals are either low voltage (0 ) or
Digital Logic Gates Reading: Jaeger 6.1-6.4 and Notes Georgia Tech ECE 3040 - Dr. Alan Doolittle
Here we show five different representation of the OR gate or OR function. They are: In summary, OR operation produces as result of 1 whenever any input is 1. Otherwise 0. An OR gate is a logic circuit that performs an OR operation on the circuit's input. What is the only set of input conditions that will produce a LOW output for any OR gate?
Fig.2.1.1 shows each of the seven basic logic gates, which may be illustrated by either the traditional "Distinctive Shape" ANSI symbol or the newer rectangular IEC symbol, and a written description of its logic function compared with its Boolean equation.
We use the axioms and theorems of Boolean algebra to optimize our designs. Design goals vary. " Reduce the number of inputs? " Reduce the number of gates? " Reduce number of gate levels? How do we explore the tradeoffs? In fact, we can do it with only NOR or only NAND. CMOS logic gates are inverting.
Logic gates are circuits that implement the logical AND, OR, NOT and other boolean functions, whose truth tables we studied last week. There are many ways to implement logic gates using transistors, but the most common is known as comple-
All of the logical gate functions, as well as the Boolean relations discussed in the next section, follow from the truth tables for the AND and OR gates. We reproduce these below.
