数字电子技术（第九版）（英文改编版）——国外电子与通信教材系列

本书是关于数字电子技术的经典教材，内容涉及数字电子的基本概念、数制、逻辑门、布尔代数和逻辑化简、组合逻辑分析、组合逻辑的作用、计数器、移位寄存器、存储器、可编程逻辑与软件、集成电路技术等。全书的特色在于示例与习题丰富、图解清晰、语言流畅、写作风格简约。 本书可作为高等院校电子信息类专业本科生的教材，也可供相关技术、科研管理人员使用，或作为继续教育的参考书。

1 Digital Concepts 1
1-1 Digital and Analog Quantities 2
1-2 Binary Digits, Logic Levels, and Digital Waveforms
2 Number Systems, Operations, and Codes 11
2-1 Decimal Numbers 12
2-2 Binary Numbers 13
2-3 Decimal-to-Binary Conversion 16
2-4 Binary Arithmetic 19
2-5 1's and 2's Complements of Binary Numbers 23
2-6 Signed Numbers 25
2-7 Arithmetic Operations with Signed Numbers 31
2-8 Hexadecimal Numbers 37
2-9 Octal Numbers 43
2-10 Binary Coded Decimal (BCD) 45
2-11 Digital Codes 48
2-12 Error Detection and Correction Codes 51
3 Logic Gates 64
3-1 The Inverter 65
3-2 The AND Gate 68
3-3 The OR Gate 75
3-4 The NAND Gate 80
3-5 The NOR Gate 85
3-6 The Exclusive-OR and Exclusive-NOR Gates 90
4 Boolean Algebra and Logic Simplification 99
4-1 Boolean Operations and Expressions 100
4-2 Laws and Rules of Boolean Algebra 101
4-3 DeMorgan's Theorem 107
4-4 Boolean Analysis of Logic Circuits 110
4-5 Simplification Using Boolean Algebra 112
4-6 Standard Forms of Boolean Expressions 116
4-7 Boolean Expressions and Truth Tables 122
4-8 The Karnaugh Map 126
4-9 Karnaugh Map SOP Minimization 128
4-10 Karnaugh Map POS Minimization 137
5 Combinational Logic Analysis 151
5-1 Basic Combinational Logic Circuits 152
5-2 Implementing Combinational Logic 156
5-3 The Universal Property of NAND and NOR Gates 162
5-4 Combinational Logic Using NAND and NOR Gates 164
5-5 Logic Circuit Operation with Pulse Waveform Inputs 169
6 Functions of Combinational Logic 178
6-1 Basic Adders 179
6-2 Parallel Binary Adders 182
6-3 Ripple Carry versus Look-Ahead Carry Adders 189
6-4 Comparators 192
6-5 Decoders 197
6-6 Encoders 205
6-7 Code Converters 209
6-8 Multiplexers (Data Selectors) 212
6-9 Demultiplexers 221
6-10 Parity Generators/Checkers 222
7 Latches, Flip-Flops, and Timers 238
7-1 Latches 239
7-2 Edge-Triggered Flip-Flops 245
7-3 Flip-Flop Operating Characteristics 257
7-4 Flip-Flop Applications 260
7-5 One-Shots 265
7-6 The 555 Timer 270
8 Counters 283
8-1 Asynchronous Counter Operation 284
8-2 Synchronous Counter Operation 292
8-3 Up/Down Synchronous Counters 300
8-4 Design of Synchronous Counters 303
8-5 Cascaded Counters 313
8-6 Counter Decoding 317
8-7 Counter Applications 320
8-8 Logic Symbols with Dependency Notation 325
9 Shift Registers 338
9-1 Basic Shift Register Functions 339
9-2 Serial In/Serial Out Shift Registers 340
9-3 Serial In/Parallel Out Shift Registers 344
9-4 Parallel In/Serial Out Shift Registers 346
9-5 Parallel In/Parallel Out Shift Registers 350
9-6 Bidirectional Shift Registers 352
9-7 Shift Register Counters 355
9-8 Shift Register Applications 359
9-9 Logic Symbols with Dependency Notation 365
10 Memory and Storage 374
10-1 Basics of Semiconductor Memory 375
10-2 Random-Access Memories (RAMs) 379
10-3 Read-Only Memories (ROMs) 392
10-4 Programmable ROMs (PROMs and EPROMs) 397
10-5 Flash Memories 400
10-6 Memory Expansion 405
10-7 Special Types of Memories 411
11 Introduction to Digital Signal Processing 420
11-1 Digital Signal Processing Basics 421
11-2 Converting Analog Signals to Digital 422
11-3 Analog-to-Digital Conversion Methods 428
11-4 Digital-to-Analog Conversion Methods 438
12 Integrated Circuit Technologies 450
12-1 Basic Operational Characteristics and Parameters 451
12-2 CMOS Circuits 459
12-3 TTL Circuits 464
12-4 Practical Considerations in the Use of TTL 469
12-5 Comparison of CMOS and TTL Performance 477
12-6 Emitter-Coupled Logic (ECL) Circuits 478
12-7 PMOS, NMOS, andEzCMOS 479
Answers to Odd-Numbered Problems 488