数字电子技术英文版Chapter15m精品PPT课件
数字电子技术大纲 英文
Teaching Programme Of Digital Electronic Technology 一、Basic information of courseCourse title: Digital electronic technologyEnglish name: Digital electronic technologyCourse nature: compulsory courseCourse number: 02Weekly hours: three hoursTotal hours: 48 hoursLearning points: three pointsApplicable to professional : Applicable to each major of the information engineering collegeprerequisite knowledge: circuit\analog electronics techniqueteaching material: Thomas L.Floyd, Digital Fundamentals,(Tenth edition), publishing house of electronics industry, Oct 2011Appraisal method: examination二、Aim and task of courseDigital electronic technology is one of the core courses designed for sophomores in all curricular relating to electrical engineering and computer science. The overall goals are to analyze and design digital logic circuits which constitute the foundation for preparing a student to take follow-on courses, develop skills required to solve engineering problems. Main topics include digital systems and codes, logic gates, Boolean algebra, logic simplification, combinational logic circuits, flip-flops and related devices, programmable logic devices, sequential logic circuits, large-scale integrated circuits, and analog-to-digital and digital-to-analog converters.三、Course content and course scheduleChapter 1 Logic Algebra (7 hours）一、The basic requirements of this chapter1. Master the conversion among binary, decimal and hexadecimal；2．Master symbol、truth table and function expression of the three basic logic operations, the basic formula of logic algebra3．. Master logic function simplification using formula method and karnaugh map二、Teaching contents1. Introduction2. logic algebra3. logic functionChapter 2 gate circuit （six hours）一、The basic requirements of this chapter1.Understand the working features of the triode in the state of switch, the workingprinciple of TTL inverter，Master static input and output characteristics of the TTL inverter2. Understand the working principle of CMOS inverter二、Teaching contents1. TTL gate circuit2. CMOS gate circuitChapter 3 combinational logic circuit（8 hours）一、The basic requirements of this chapter1. Understand the features of combinational circuits, Master the analysis method of combinational circuits2. Master the analysis method of combinational circuits3．Master the working principle and the using method of the commonly used combinational logic devices including : encoder, decoder, and data selector , Understand r and the working principle of adders and numerical comparator.二、Teaching contents1. Analysis of Combinational Logic Circuit2．Design of Combinational Logic Circuit3. Several commonly used combinational logic circuitChapter 4 Flip-flops（5 hours）一、The basic requirements of this chapter1．Understand the characteristics and classification of flip-flops;2．Understand circuit structure and action characteristic of basic RS flip-flops and synchronous RS flip-flops; Master circuit structure and action characteristic ofMaster-Slave JK and D flip-flops;3．Understand property list、the characteristic equation and state transition diagram that describe the logic functions of flip-flops.二、Teaching contents1．Introduction2．circuit structure and action characteristic of flip-flops3．Logic function and description method of flip-flopsChapter 5 Sequential logic circuit（8 hours）一、The basic requirements of this chapter1．Understanding the characteristics and structure of the sequential logic circuit; 2．Master the analysis method of the synchronous sequential logic circuit, acquire these skills of writing drive equation and state equation and output equation of the circuit, drawing state transition diagram;3．Understand the working principle of shift register registers and counters, grasp common counter chips and counter connection method4．Understand the design method of synchronous sequential logic circuit.二、Teaching contents1．Introduction2．Analysis method of the sequential logic circuit3．Some common sequential logic circuit4．Design method of synchronous sequential logic circuitChapter 6 Pulse waveform generation and shaping (5 hours)一、The basic requirements of this chapter1. Understand several main parameters describing pulse waveform;2. Understand the role and action characteristics of Schmitt trigger composed by gate circuit,understand the definition and determination method of characteristic parameters VT +、VT— and ΔVT, know the application of Schmitt trigger3.Understand the role and operation characteristics of one-shot that is composed of gate circuit ;；4.Understand the working principle of symmetric multivibrator and multivibrator composed by Schmitt trigger;5．Master the circuit structure and function of 555 timer, Calculate the parameters of Schmitt trigger and multivibrator composed by 555 timer.二、Teaching contents1．Introduction2．Schmitt trigger3．one-shot that is composed of gate circuit4．multivibrator5．555 timer and its applicationChapter 7 large scale integrated circuit (3 hours)一、The basic requirements of this chapter1．Know classification of semiconductor memory, Know working principleof the masked ROM, know the characteristics of the programmable read-only memory, know the characteristics of the programmable read-only memory and erasable programmable read only memory；2．Understand the structure and working principle of the static random access memory; 3．To grasp the way of storage capacity and memory is used to implement the concept of combined logic function. Master memory capacity expansion mode and the concept of realization of combinational logic with memory .二、Teaching contents1．Introduction2．Read-only memory (ROM)3．Random access memory4．The extension of storage capacityChapter 8 programmable logic device (2 hours)一、The basic requirements of this chapterUnderstand the logic graphic symbol of the programmable logic devices, Understand the circuit structure and working principle of PAL二、Teaching contents1．Programmable Logic Array（PAL）2．Generic array logic（GAL）Chapter 9 digital-analog and analog-to-digital conversion (4 hours) 一、The basic requirements of this chapter1．master the basic concept of D/A converter, Understand the basic working principle of D/A converter、the conversion accuracy and conversion speed of D / A converter，Understand the calculation of input and output relationship of D/A converter；2．master the basic concept of A/D converter, Understand the basic working principle of A/D converter、the conversion accuracy and conversion speed of A/D converter，know the main types, structure features, basic working principle and performance comparison of A/D converter.二、Teaching contents1．D/A converter2．A/D converter。
《数字电子技术》PPT课件
Thomas L. Floyd Digital Fundamentals, 9e
a
1 Copyright ©2006 by Pearson Education, Inc.
Thomas L. Floyd Digital Fundamentals, 9e
a
5 Copyright ©2006 by Pearson Education, Inc.
Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 8–6 An asynchronously clocked decade counter with asynchronous recycling.
Thomas L. Floyd Digital Fundamentals, 9e
a
8 Copyright ©2006 by Pearson Education, Inc.
Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 8–9 Two configurations of the 74LS93 asynchronous counter. (The qualifying label, CTR DIV n, indicates a counter with n states.)
Thomas L. Floyd Digital Fundamentals, 9e
a
7 Copyright ©2006 by Pearson Education, Inc.
数字电子技术加英文注释
AB
Y
00
0
01
0
10
0
11
1
Y=AB
A&
Y
B
2.3 最简单的与、或、非门电路
二、二极管或门 Implement OR-gate with diodes
A VD1
B VD2
Y R
uA uB
0V 0V 0V 5V 5V 0V 5V 5V
uY
0V 4.3V 4.3V 4.3V
VD1 VD2 截止 截止 截止 导通 导通 截止 导通 导通
2.1 概述
TTL: HIGH 2-5V and LOW 0-0.8V.
逻辑电平
5V
高电平UH：
输入高电平UIH
高电平下限 2V
1
输出高电平UOH
低电平UL：
输入低电平UIL
低电平上限 0.8V
0
0V
输出低电平UOL
逻辑“0”和逻辑“1”对应的电压范围宽，
因此在数字电路中，对电子元件、器件
NMOS管电路符号
PMOS管电路符号
2.2 半导体二极管和三极管的开关特性
二、MOS管开关特性
+VDD
RD D
G
ui
S
iD
uo
NMOS管的基本开关电路
选择合适的电路参数，则可以保证 当uI=UIH时，MOS管导通，uo=0=UOL 当uI=UIL时，MOS管截止，uO=VDD=UOH
－ 开关闭合 － 开关断开
2.4 TTL集成门电路
2.输入噪声容限 实际应用中，由于外界干扰、电源波动等原因，可能
使输入电平UI偏离规定值。为了保证电路可靠工作，应对干
数字电子技术(课件)lec15
Chapter 7 Latches, Flip-Flops, and Timers
2
Lecture 15: Latches and Flip-Flops Basics
Inverter Bistable Circuit Look at the following circuit:
U4
Lecture 15: Latches and Flip-Flops Basics Chapter 7 Outline 7-1 7-2 **** 7-3 7-4 Latches Lecture 15 Edge-Triggered Flip-Flops Lecture 16 Flip-Flop Evolution Flip-Flop Operating Characteristics Flip-Flop Applications
Chapter 7 Latches, Flip-Flops, and Timers
11
Lecture 15: Latches and Flip-Flops Basics
Active-LOW S-R Latch Example If the S and R waveforms shown below are applied to the inputs of the active-LOW latch, determine the waveform on the Q output. Assume Q is initially “0”.
2012-3-28
我们如何用SR锁存器来解决 我们如何用 锁存器来解决 这个问题呢？ 这个问题呢？
Chapter 7 Latches, Flip-Flops, and Timers
13
数字电路英文版第四单元PPT课件
第19页/共135页
9.
B
B+C
A
B C
X
A
A
C
AB X
AC
X = A( B + C ) X = A B + A C
第20页/共135页
10.
Rules of Boolean Algebra
1. A + 0 = A 7. A * A = A
2. A + 1 = 1 8. A * A = 0
• “Don’t care” A combination of input literals that cannot occur and can be used as a 1 or a 0 on a Karnaugh map.
第5页/共135页
• Literal A variable or the complement of a variable. • Product-of-sums (POS) A form of Boolean expression that is
第3页/共135页
• Commutative law In addition (ORing) and multiplication (ANDing) of two variables, the order in which the variables are ORed orANDed makes no diffence.
A+B=B+A
A
A+B
B
B
A
第15页/共135页
B+A
5.
Logical Multiplication
数字电子技术大纲 英文
Teaching Programme Of Digital Electronic Technology 一、Basic information of courseCourse title: Digital electronic technologyEnglish name: Digital electronic technologyCourse nature: compulsory courseCourse number: 02Weekly hours: three hoursTotal hours: 48 hoursLearning points: three pointsApplicable to professional : Applicable to each major of the information engineering collegeprerequisite knowledge: circuit\analog electronics techniqueteaching material: Thomas L.Floyd, Digital Fundamentals,(Tenth edition), publishing house of electronics industry, Oct 2011Appraisal method: examination二、Aim and task of courseDigital electronic technology is one of the core courses designed for sophomores in all curricular relating to electrical engineering and computer science. The overall goals are to analyze and design digital logic circuits which constitute the foundation for preparing a student to take follow-on courses, develop skills required to solve engineering problems. Main topics include digital systems and codes, logic gates, Boolean algebra, logic simplification, combinational logic circuits, flip-flops and related devices, programmable logic devices, sequential logic circuits, large-scale integrated circuits, and analog-to-digital and digital-to-analog converters.三、Course content and course scheduleChapter 1 Logic Algebra (7 hours）一、The basic requirements of this chapter1. Master the conversion among binary, decimal and hexadecimal；2．Master symbol、truth table and function expression of the three basic logic operations, the basic formula of logic algebra3．. Master logic function simplification using formula method and karnaugh map二、Teaching contents1. Introduction2. logic algebra3. logic functionChapter 2 gate circuit （six hours）一、The basic requirements of this chapter1.Understand the working features of the triode in the state of switch, the workingprinciple of TTL inverter，Master static input and output characteristics of the TTL inverter2. Understand the working principle of CMOS inverter二、Teaching contents1. TTL gate circuit2. CMOS gate circuitChapter 3 combinational logic circuit（8 hours）一、The basic requirements of this chapter1. Understand the features of combinational circuits, Master the analysis method of combinational circuits2. Master the analysis method of combinational circuits3．Master the working principle and the using method of the commonly used combinational logic devices including : encoder, decoder, and data selector , Understand r and the working principle of adders and numerical comparator.二、Teaching contents1. Analysis of Combinational Logic Circuit2．Design of Combinational Logic Circuit3. Several commonly used combinational logic circuitChapter 4 Flip-flops（5 hours）一、The basic requirements of this chapter1．Understand the characteristics and classification of flip-flops;2．Understand circuit structure and action characteristic of basic RS flip-flops and synchronous RS flip-flops; Master circuit structure and action characteristic ofMaster-Slave JK and D flip-flops;3．Understand property list、the characteristic equation and state transition diagram that describe the logic functions of flip-flops.二、Teaching contents1．Introduction2．circuit structure and action characteristic of flip-flops3．Logic function and description method of flip-flopsChapter 5 Sequential logic circuit（8 hours）一、The basic requirements of this chapter1．Understanding the characteristics and structure of the sequential logic circuit; 2．Master the analysis method of the synchronous sequential logic circuit, acquire these skills of writing drive equation and state equation and output equation of the circuit, drawing state transition diagram;3．Understand the working principle of shift register registers and counters, grasp common counter chips and counter connection method4．Understand the design method of synchronous sequential logic circuit.二、Teaching contents1．Introduction2．Analysis method of the sequential logic circuit3．Some common sequential logic circuit4．Design method of synchronous sequential logic circuitChapter 6 Pulse waveform generation and shaping (5 hours)一、The basic requirements of this chapter1. Understand several main parameters describing pulse waveform;2. Understand the role and action characteristics of Schmitt trigger composed by gate circuit,understand the definition and determination method of characteristic parameters VT +、VT— and ΔVT, know the application of Schmitt trigger3.Understand the role and operation characteristics of one-shot that is composed of gate circuit ;；4.Understand the working principle of symmetric multivibrator and multivibrator composed by Schmitt trigger;5．Master the circuit structure and function of 555 timer, Calculate the parameters of Schmitt trigger and multivibrator composed by 555 timer.二、Teaching contents1．Introduction2．Schmitt trigger3．one-shot that is composed of gate circuit4．multivibrator5．555 timer and its applicationChapter 7 large scale integrated circuit (3 hours)一、The basic requirements of this chapter1．Know classification of semiconductor memory, Know working principleof the masked ROM, know the characteristics of the programmable read-only memory, know the characteristics of the programmable read-only memory and erasable programmable read only memory；2．Understand the structure and working principle of the static random access memory; 3．To grasp the way of storage capacity and memory is used to implement the concept of combined logic function. Master memory capacity expansion mode and the concept of realization of combinational logic with memory .二、Teaching contents1．Introduction2．Read-only memory (ROM)3．Random access memory4．The extension of storage capacityChapter 8 programmable logic device (2 hours)一、The basic requirements of this chapterUnderstand the logic graphic symbol of the programmable logic devices, Understand the circuit structure and working principle of PAL二、Teaching contents1．Programmable Logic Array（PAL）2．Generic array logic（GAL）Chapter 9 digital-analog and analog-to-digital conversion (4 hours) 一、The basic requirements of this chapter1．master the basic concept of D/A converter, Understand the basic working principle of D/A converter、the conversion accuracy and conversion speed of D / A converter，Understand the calculation of input and output relationship of D/A converter；2．master the basic concept of A/D converter, Understand the basic working principle of A/D converter、the conversion accuracy and conversion speed of A/D converter，know the main types, structure features, basic working principle and performance comparison of A/D converter.二、Teaching contents1．D/A converter2．A/D converter。
数字电子技术英文版
Nothing Special about 10!
Decimal system (and the idea of “0”) was invented in India around 100-500AD.
Why did they use 10? Anything special about it?
• What about base 2?
2-2 BINARY NUMBERS 二进制数
Introductory Paragraph
The binary number system is simply another way to represent quantities. The binary system is less complicated than the decimal system because it has only two digits. It may seem more difficult at first because it is unfamiliar to you. The decimal system with its ten digits is a base-ten system; the binary system with its two digits is a base-two system. The two digits (bits) are 1 and 0. The position of a 1 or 0 in a binary number indicates its weight, or value within the number, just as the position of a decimal digit determines the value of that digit. The weights in a binary number are based on powers of two.
数字电子技术基础英文版课件
Logic Levels
Binary values are also represented by voltage levels
They can also be called LOW and HIGH, where LOW = 0 and HIGH = 1 In positive logic rules:
Slide 14
1-2 Binary Digits, Logic Levels, and Digital Waveforms 二进制数，逻辑电平和数字波形
Slide 15
Binary Digits
• The conventional numbering system uses ten digits: 0,1,2,3,4,5,6,7,8, and 9. • The binary numbering system uses just two digits: 0 and 1. • Each of the two digits is called bit, which is a contraction of the words binary digit. • Groups of bits (combinations of 1s and 0s)is called code.
1 f T
Slide 21
An important characteristic of a digital waveform is its duty cycle. The duty cycle（占空比） of a binary waveform is defined as:
tw Duty cycle 100% T
Slide 17
Slide 18
数字电子技术英文版Chapter15m精品PPT课件
15-3 TTL CIRCUITS
• The BJT: Bipolar junction transistors are the active switching elements in the CMOS circuits.
TTL Inverter
• Q1 (input coupling transistor). • D1 (input clamp diode) prevents negative spikes of voltage on the input
Basic Operational Characteristics and Parameters • Noise margin
Basic Operational Characteristics and Parameters • Noise margin
Basic Operational Characteristics and Parameters
TTL NOR Gate
TTL AND-OR-Inverter
TTL XOR Gate
Open-Collector Gates
• Notice that the output is the collector of transistor Q3 with nothing connected to it, hence the name open collector.
15-2 CMOS CIRCUITS
• The MOSFET: MOSFETs are the active switching elements in the CMOS circuits.
CMOS Inverter
• CMOS logic uses the MOSFET in complementary pairs as its basic element. A complementary pair uses both p-channel and n-channel enhancement MOSFETs.
数字电路英文版 第15单元
E2CMOS Electrically erasable CMOS; the IC technology used in programmable logic devices. Gate A logic circuit that performs a specified logic operation such as AND or OR; one of the three terminal of a MOSFET. Noise immunity The ability of a logic circuit to rejuct unwanted signals (noise).
(b): +3.3 V ( low voltage )
4
CMOS Logic Levels
Input
5V
VIH
3.5 V
Logic 1 (HIGH)
VOH
VIH(min)
5V 4.4 V
Output
Logic 1(HIGH)
VOH(min)
Unallowed Unallowed
1.5 V VIL(max)
When you work with digital ICs, you should be familiar, not only with their logical operation, but also with such operational properties as voltage levels, noise immunity, power dissipation, fan-out, and propagation delays. In this section, the practical aspects of these properties are discussed.
【Selected】数字电路英文版.ppt
Bus arbitration The process that prevents two sources from using a bus at the same time.
Bus contention An adverse condition that could occur if two or more devices try to communicate at the same time on a bus.
ISA bus Industry standard architecture bus; an internal parallel bus standard.
Local bus An internal bus that connects the microprocessor to the cache memory, the main memory, the coprocessor, and the PCI bus controller.
Controller An instrument that can specify each of the other instruments on the bus as either a talker or a listener for the purpose of data transfer.
3
Real-world quantities can even include graphic images. Also, digital systems often must produce outputs to control real-world quantities.
CHAPTER 13 INTERFACING
KEY TERMS
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15-2 CMOS CIRCUITS
• The MOSFET: MOSFETs are the active switching elements in the CMOS circuits.
CMOS Inverter
• CMOS logic uses the MOSFET in complementary pairs as its basic element. A complementary pair uses both p-channel and n-channel enhancement MOSFETs.
P DVCICCC VCC ICC2 HICCL
Basic Operational Characteristics and Parameters • Power dissipation in a TTL circuit is essentially constant over
its range of operating frequencies. Power dissipation in CMOS, however, is frequency dependent.
ChaБайду номын сангаасter 15
Integrated Circuit Technologies
15-1 BASIC OPERATIONAL CHARACTERISTICS AND PARAMETERS
• DC supply vlotage
– TTL: +5 V – CMOS: +5V, +3.3 V
Basic Operational Characteristics and Parameters • CMOS Logic Levels (+5 V CMOS)
Basic Operational Characteristics and Parameters
✓ TTL loading. The total source current or sink current increases with each load gate input that is added. One input of the same logic family as the driving gate is called a unit load.
Basic Operational Characteristics and Parameters • Noise margin
Basic Operational Characteristics and Parameters • Noise margin
Basic Operational Characteristics and Parameters
PD tP
• Loading and Fan-out: The fan-out of a gate is the maximum number of gate inputs that it can drive while remaining within guaranteed specification.
Basic Operational Characteristics and Parameters
✓ CMOS loading. The type of transistors used in CMOS logic present a predominantly capacitive load to the driving gate. The limitations are the charging and discharging times associated with the output resistance of the driving gate and the input capacitance of the load gates. The fewer the load gate inputs, the smaller the equivalent capacitance, the greater the maximum frequency of operation.
Basic Operational Characteristics and Parameters
✓ TTL loading. A TTL driving gate sources current to a load gate input in the HIGH state and sinks current from the load gate in the LOW state.
PDf CVD 2D
Where, C is the equivalent load capacitance.
Basic Operational Characteristics and Parameters
• Propagation delay
– LOW-to-HIGH propagation delay – HIGH-to-LOW propagation delay
tP
tPLHtPHL 2
Basic Operational Characteristics and Parameters
• Speed-power product (in picojoule, pJ): the lower the speedpower product, the better the logic gate.
• Noise margin
– HIGH-level noise margin – LOW-level noise margin
VNHVOH(min) VIH(min) VNLVIL(max) VOL(max)
Basic Operational Characteristics and Parameters • Power dissipation (assume the duty cycle is 50%)
Basic Operational Characteristics and Parameters • CMOS Logic Levels (+3.3 V CMOS)
Basic Operational Characteristics and Parameters • TTL Logic Levels