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Online Instructor’s Manual
to accompany
Digital Fundamentals
Tenth Edition
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Thomas L. Floyd
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Upper Saddle River, New Jersey
Columbus, Ohio
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__________________________________________________________________________________
Copyright © 2009 by Pearson Education, Inc., Upper Saddle River, New Jersey 07458.
Pearson Prentice Hall. All rights reserved. Printed in the United States of America. This publication is protected by
Copyright and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a
retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or
likewise. For information regarding permission(s), write to: Rights and Permissions Department.
Pearson Prentice Hall™ is a trademark of Pearson Education, Inc.
Pearson® is a registered trademark of Pearson plc
Prentice Hall® is a registered trademark of Pearson Education, Inc.
Instructors of classes using Floyd, Digital Fundamentals, Tenth Edition , may reproduce material from the
instructor’s manual for classroom use.
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ISBN-13: 978-0-13-712960-7
0-13-712960-2
ISBN-10:
10 9 8 7 6 5 4 3 2 1
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CONTENTS
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PART 1: PROBLEM SOLUTIONS ............................................................................................1
CHAPTER 1
Introductory Concepts ............................................................................................2
CHAPTER 2 Number Systems, Operations, and Codes ..............................................................7
CHAPTER 3 Logic Gates ..........................................................................................................23
CHAPTER 4 Boolean Algebra and Logic Simplification..........................................................35
CHAPTER 5 Combinational Logic Analysis.............................................................................60
CHAPTER 6 Functions of Combinational Logic.......................................................................95
CHAPTER 7 Latches, Flip-Flops, and Timers.........................................................................115
CHAPTER 8 Counters .............................................................................................................130
CHAPTER 9 Shift Registers ...................................................................................................159
CHAPTER 10 Memory and Storage ..........................................................................................175
CHAPTER 11 Programmable Logic and Software....................................................................185
CHAPTER 12 Signal Interfacing and Processing ......................................................................195
CHAPTER 13 Computer Concepts ............................................................................................204
CHAPTER 14 Integrated Circuit Technologies .........................................................................210
PART 2: SYSTEM APPLICATION ACTIVITY SOLUTIONS ..........................................217
............................................................................................................................218
CHAPTER 4
............................................................................................................................221
CHAPTER 5
............................................................................................................................223
CHAPTER 6
............................................................................................................................228
CHAPTER 7
CHAPTER 8
............................................................................................................................230
............................................................................................................................233
CHAPTER 9
............................................................................................................................234
CHAPTER 10
CHAPTER 11
............................................................................................................................235
PART 3: OVERVIEW OF IEEE STD. 91-1984 .....................................................................239
PART 4: LABORATORY SOLUTIONS FOR EXPERIMENTS IN DIGITAL
FUNDAMENTALS by David Buchla......................................................................265
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To access supplementary materials online, instructors need to request an instructor access code.
Go to www.pearsonhighered.com/irc, where you can register for an access code. Within 48
hours after registering you will receive a confirming e-mail including an instructor access code.
Once you have received your code, go the site and log on for full instructions on downloading the
materials you wish to use.
NOTE: For access to hidden faults in Multisim circuits, the password is book.
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PART 1
Problem Solutions
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学霸助手[xuebazhushou.com]-课后答案|期末试卷|复习提纲
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Chapter 1
CHAPTER 1
INTRODUCTORY CONCEPTS
Section 1-1 Digital and Analog Quantities
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Digital data can be transmitted and stored more efficiently and reliably than analog data. Also,
digital circuits are simpler to implement and there is a greater immunity to noisy environments.
A clock, a thermometer, and a speedometer can have either an analog or a digital output.
Pressure is an analog quantity.
2.
3.
Section 1-2 Binary Digits, Logic Levels, and Digital Waveforms
4.
In positive logic, a 1 is represented by a HIGH level and a 0 by a LOW level. In negative logic,
a 1 is represented by a LOW level, and a 0 by a HIGH level.
A 1 is a HIGH and a 0 is a LOW:
(a) HIGH, LOW, HIGH, HIGH, HIGH, LOW, HIGH
(b) HIGH, HIGH, HIGH, LOW, HIGH, LOW, LOW, HIGH
2
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学霸助手[xuebazhushou.com]-课后答案|期末试卷|复习提纲
HIGH = 1; LOW = 0. See Figure 1-1.
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5.
6.
Chapter 1
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See Figure 1-2.
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7.
8.
9.
10. The waveform in Figure 1-61 is periodic because it repeats at a fixed interval.
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T = 4 ms. See Figure 1-3.
= 0.25 kHz = 250 Hz
tW = 2 ms; T = 4 ms
t
% duty cycle =
W
T
100 = 50%
ms 2
ms 4
ms 4
f =
1
T
=
1
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⎛
⎜
⎝
⎞
100
⎟
⎠
⎛=
⎜
⎝
⎞
⎟
⎠
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See Figure 1-4.
12.
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3
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