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Digital Logic Gates Reading: Jaeger 6.1-6.4 and Notes Georgia Tech ECE 3040 - Dr. Alan Doolittle
This module introduces the basics of digital logic and shows how the whole of digital electronics depends on just seven types of logic gates, connected together with a minimum of additional components. Combinations of logic gates then form circuits that can perform specific tasks within larger circuits or systems.
Realize complex logic functions utilizing programmable logic. Design machines for the purpose of manipulating data streams. Design complex digital systems.
Logic Minimisation • Any Boolean function can be implemented directly using combinational logic (gates) • However, simplifying the Boolean function will enable the number of gates required to be reduced. Techniques available include: – Algebraic manipulation (as seen in examples) – Karnaugh (K) mapping (a visual approach)
Digital Integrated Circuits and Systems (PDF - 2.4 MB) Moore's Law, VLSI Integration, Layout and Fabrication, Application-specific Circuits, Microprocessors. Behavioral and Algorithmic Transformations, Retiming, Parallelism and Pipelinling
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-
Large Scale Integration (LSI): contains thousands of gates in a single IC. Such as processors, memory chips and programmable logic devices, etc. Very Large Scale Integration (VLSI): contains hundred of thousands of gates within a single packages. Large memory arrays and complex microcomputer chips, etc. 40
