Two ways to think about logic signals

9/29/99


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Table of Contents

Two ways to think about logic signals

High True vs. Low True Logic

Asserted vs. Negated

The Physical World

THE Problem

Examples of high, low signals

Examples of high, low signals

7400 Logic Gate

Fixed Logic Polarity vs Mixed Logic Polarity

Fixed Polarity vs Mixed Polarity

7404 Logic Gate

7402 Logic Gate

7408 Logic Gate

7432 Logic Gate

Problem #1

Problem #1 (solution)

Problem #2

Problem #2 (solution)

Problem #3

Problem #3 (solution)

THE Problem (again)

THE Problem (solution)

Mixed High True, Low True Inputs

Mixed High True, Low True Inputs

Mixed High True, Low True Inputs

Mixed High True, Low True Inputs

PPT Slide

Complete Logic Families

Other Complete Logic Families

Other Complete Logic Families (cont)

Sum of Products

Product of Sums

What do you have to know?

Author: Bob Reese

Email: reese@erc.msstate.edu

Home Page: http://www.erc.msstate.edu/~reese

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