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Nonlinear Insights
Digital Electronics

Author Name :

  • ISBN: 9788196097844
  • Year: 2024
  • Edition: 1

Overview :

This text is a lucid introduction to Digital Electronics for the Undergraduate Engineering students of Electronics & Communication, Electrical, Computer Science and Information Technology. Every topic has been touched in minute detail. The primary objective is to make the study of digital circuits and switching theory more meaningful by providing the reader with a thorough understanding of the existing topics. State-of-the-art developments in the area have also been covered.

Table of Contents
Preface
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  • CHAPTER 1 INTRODUCTION 1-4
  • CHAPTER 2 NUMBER SYSTEM AND COMPUTER CODES 5-64
    • 2.1 Introduction 5
    • 2.2 Number systems 6
    • 2.3 Arithmetic Operation with Non-Decimal Numbers 22
    • 2.4 Signed Number Representation 36
    • 2.5 Signed Multiplication 39
    • Ascii Code 55
    • 2.6 Error Detecting and Correction Codes 56
    • Problems 63
  • CHAPTER 3 BASIC LOGIC GATES AND THEIR PROPERTIES 65-88
    • 3.1 Introduction 65
    • 3.2 Logic Gates Types 66
    • 3.3 Enable and Inhibit Properties of Logic Gates 77
    • 3.4 Active Levels of a Logic Signal 80
    • 3.5 Logic Gate Duality 82
    • Problems 85
  • CHAPTER 4 BOOLEAN SWITCHING ALGEBRA AND ITS APPLICATIONS 89-108
    • 4.1 Introduction 89
    • 4.2 Postulates of Switching Algebra 89
    • 4.3 Theorems of the Switching Algebra 91
    • 4.4 Canonical Forms of Switching Functions 102
    • Problems 107
  • CHAPTER 5 SIMPLIFICATION OF BOOLEAN EXPRESSION 109-160
    • 5.1 Introduction 109
    • 5.2 Formation of Karnaugh Map for Switching Functions 109
    • 5.3 Simplification of Switching Functions using Karnaugh Maps 119
    • 5.4 Some Definitions 127
    • 5.5 Simplification of 4-Variable Function Using Fourth-order K-map 131
    • 5.6 Uncompletely Specified Functions (Don’t cares) 133
    • 5.7 Quine Mccluskey Method of Minimisation 138
    • 5.8 Quine Mccluskey Simplification of Functions Containing Don’t Care Terms 153
    • Problems 158
  • CHAPTER 6 IMPLEMENTATION OF COMBINATION LOGIC CIRCUIT WITH BASIC LOGIC GATES 161-186
    • 6.1 Introduction 161
    • 6.2 And-or (or-And) Implementation of Logic-Circuit 162
    • 6.3 2-Level Logic Circuit Implementation Using only Nand Gates 168
    • 6.4 2-Level Logic Circuit Implementation using only Nor Gates 173
    • 6.5 Map Factoring Method 176
    • 6.6 Dual Property of the Circuit 181
    • 6.7 Xor Implementation of the Logic Circuits 182
    • Problems 184
  • CHAPTER 7 LOGIC FAMILIES 187-214
    • 7.1 Transistor as an Inverter 187
    • 7.2 Basic TTL Nand Gate Circuit 189
    • 7.3 Electrical Characteristics of Logic Gates 195
    • 7.4 Open Collector Type Logic Gates 200
    • 7.5 Tri-state Logic Gates (TSL Gates) 203
    • 7.6 Mos Logic Family 204
    • 7.7 Nmos Inverter 207
    • 7.8 Logic Gates Using N-Channel Mosfet (Nmos) 209
    • 7.10 Complementary Mos Logic 212
    • Problems 214
  • CHAPTER 8 COMBINATIONAL LOGIC CIRCUIT IMPLEMENTATION WITH SSI AND MSI 215-264
    • 8.1 Multiplexers 215
    • 8.2 Decoder 219
    • 8.3 Parity Generators and Checkers 229
    • 8.4 4-Bit Magnitude Comparator 232
    • 8.5 Code Converters 234
    • 8.6 Display and Display Driver 244
    • 8.7 Encoders and Priority Encoders 254
    • Problems 261
  • CHAPTER 9 SEQUENTIAL LOGIC CIRCUIT AND BISTABLE DEVICES 265-294
    • 9.1 Basic Memory Devices - Latches and Flip-Flops 265
    • 9.2 Latch 265
    • 9.3 Flip Flops 274
    • 9.4 T Flip-Flop 282
    • 9.5 D-Latch 285
    • Problems 293
  • CHAPTER 10 REGISTERS AND SHIFT REGISTERS 295-312
    • 10.1 Introduction 295
    • 10.2 Parallel Registers 295
    • 10.3 Shift Registers 300
    • Problems 311
  • CHAPTER 11 COUNTERS 313-362
    • 11.1 Introduction 313
    • 11.2 Asynchronous Counters 314
    • 11.3 Synchronous Counters 339
    • Problems 356
  • CHAPTER 12 MEMORIES 363-400
    • 12.1 Introduction 363
    • 12.2 Organization of Static Read/Write Memory 366
    • 12.3 Ram Cells 373
    • 12.4 Semiconductor Read-Only Memory (Rom) 380
    • 12.5 Address Decoding and Row Selection 385
    • 12.6 Types of Programmable Roms 386
    • 12.7 Electrically Erasable Programmable Read Only Memory (EEPROM OR E2PROM) 391
    • 12.8 Dynamic Ram (Dram) Cell 395
  • Index 401-406
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PREFACE

The journey of digital systems started with the development of the mechanical adder in 1642 by Pascal and a lot of developments took place over the years till 1854 when Boole developed a special algebra for modern digital electronics and computer circuits. After that, the introduction of digital adder, subtracter, multiplexer, encoder, decoder, logic gates and their use in register as memory and counter have enriched the subject. All these topics are now divided into two broad categories as Combinational and Sequential circuits. From the above consideration, the present book is written to serve the need of a fundamental text, covering the complete range of the foundation materials in switching theory and digital design. The solved and unsolved problems of different chapters will make the subject easy to understand.

Though the book is primarily for the first level course for the students of B.E./ B.Tech courses in Electronics & Communication, Computer Science, Information Technology and Electrical Engineering of every Engineering Colleges and at the same time, the UG/PG general science students of any University will also be benefited after going through the book for their course on Electronic Science, Computer Science and Physics. This book is also helpful for the student appearing in different examinations like GATE, ISRO, DRDO etc.

Last but not least, there may be some printing errors which have escaped despite our alertness. Any such errors or shortcomings along with suggestions will be highly appreciated for further improvement of the book in the next edition.

-Dr. Diptiman Ray Chaudhuri
-Dr. Monojit Mitra

ABOUT THE BOOK

This text is a lucid introduction to Digital Electronics for the Undergraduate Engineering students of Electronics & Communication, Electrical, Computer Science and Information Technology. Every topic has been touched in minute detail. The primary objective is to make the study of digital circuits and switching theory more meaningful by providing the reader with a thorough understanding of the existing topics. State-of-the-art developments in the area have also been covered.

Key Features -

  • Incorporates the basics of switching theory to understand the operation of logic gates.
  • Each chapter is followed by a large number of problems for a clear understanding of the subject.
  • Step-by-step problem-solving methodology makes it an indispensable text on this subject.
  • The design of logic circuits through problems using basic ideas is unique.
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