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1、9/16/2019(完整版)数字电路基础知识外文翻译毕业设计论文 - 百度文库https:/ 资讯 视频 图片 知道 文库 贴吧 采购 地图 |VIP新客立减2元百度文库教育专区高等教育工学首页分类精品内容申请认证机构合作频道专区 会员中心 原文:原文: Digital circuit definition: Digital circuit definition: Completes Completes with with the the digital digital signal signal to to the the digital digital quantity quantity
2、carries carries onthe onthe arithmetic arithmetic operation operation and and the the logic logic operation operation electric electric circuit circuit iscalled the digital circuit, or number system. Because iscalled the digital circuit, or number system. Because it it and the and the logical proces
3、sing function, therefore calls thenumeral logic circuit. logical processing function, therefore calls thenumeral logic circuit. Numeral logic circuit classification (according to function minute): Numeral logic circuit classification (according to function minute): 1st, combinatory logic electric ci
4、rcuit 1st, combinatory logic electric circuit The abbreviation combination circuit, it becomes by the mostbasic The abbreviation combination circuit, it becomes by the mostbasic logical logical gate gate electric electric circuit circuit combination. combination. The The characteristicis: characteri
5、sticis: Output Output value value only only and and then then input input value value related, related, namely namely output output onlyby onlyby then then input input value value decision. decision. The The electric electric circuit circuit , , the the output output condition changes along with the
6、 inputcondition change, is similar condition changes along with the inputcondition change, is similar to the resistance electric circuit, likethe accumulator, the decoder, to the resistance electric circuit, likethe accumulator, the decoder, the encoder, the data selector and so onall belong to this
7、 kind. the encoder, the data selector and so onall belong to this kind. 2nd, succession logic circuit 2nd, succession logic circuit 优秀论文优秀论文 审核通过审核通过 未经允许未经允许 切勿外传切勿外传 9/16/2019(完整版)数字电路基础知识外文翻译毕业设计论文 - 百度文库https:/ The abbreviation sequence circuit, it is adds on the feedbacklogic The abbreviation s
8、equence circuit, it is adds on the feedbacklogic return route by the most basic logical gate electric circuit (tooutput return route by the most basic logical gate electric circuit (tooutput the the electric electric circuit circuit which which input) input) or or the the component component combina
9、tionbecomes, combinationbecomes, lies lies in in the the sequence sequence circuit circuit with with the the combination combination circuitessence circuitessence difference difference to to . . The The sequence sequence circuitcharacteristic circuitcharacteristic is: is: The The output output not n
10、ot only only was was decided decided by by then then inputvalue, moreover also the and circuit past condition concerned. inputvalue, moreover also the and circuit past condition concerned. It It issimilar issimilar to to containing containing the the stored stored energy energy part part the the ind
11、uctance inductance or or theelectric theelectric capacity capacity electric electric circuit, circuit, like like electric electric circuit circuit and and so so ontrigger, ontrigger, latch, latch, counter, counter, shift shift register, register, reservoir reservoir all all is is the the sequencecir
12、cuit typical component. sequencecircuit typical component. Digital circuit characteristic: Digital circuit characteristic: 1st, simultaneously 1st, simultaneously and the logicoperation function and the logicoperation function The The digital digital circuit circuit is is take take the the binary bi
13、nary system system logic logic algebra algebra asmathematics foundation, the use binary numeral signal, both can asmathematics foundation, the use binary numeral signal, both can carryon carryon the the arithmetic arithmetic operation operation and and to to be be able able conveniently conveniently
14、 to to carry onthe logic operation (with, or, non-, judgement, comparison, carry onthe logic operation (with, or, non-, judgement, comparison, processingand so on), therefore extremely suits to application and processingand so on), therefore extremely suits to application and so so onoperation, onop
15、eration, comparison, comparison, memory, memory, transmission, transmission, control, control, decision-making. decision-making. 2nd, realization simple, the system is reliable 2nd, realization simple, the system is reliable By binary system underlie numeral logic circuit, simplereliable, the By bin
16、ary system underlie numeral logic circuit, simplereliable, the accuracy is accuracy is rate rate realization is easy realization is easy 9/16/2019(完整版)数字电路基础知识外文翻译毕业设计论文 - 百度文库https:/ Integration Integration rate rate ,service, ,service, maintenance maintenance nimble nimble convenient, convenient,
17、along along with with the the integratedcircuit integratedcircuit technology technology rate rate is is more more and and more more along with small scale integration electric circuit (SSI),center scale along with small scale integration electric circuit (SSI),center scale integrated integrated circ
18、uit circuit (MSI), (MSI), large large scale scale integrated integrated circuit(LSI), circuit(LSI), ultra ultra large large scale scale integrated circuit (VLSI) integrated circuit (VLSI) the the developmentalso from the developmentalso from the part level, the component level, the part level, thebo
19、ard card level part level, the component level, the part level, theboard card level rises rises to to the the system system level. level. The The electric electric circuitdesign circuitdesign composition composition only only must must use use some some standards standards the the integrated integra
20、ted circuitblock circuitblock unit unit connection connection to to become. become. Also Also may may use use the the programmableforeword programmableforeword logic logic array array electric electric circuit circuit regarding regarding the the non- non- standardspecial standardspecial electric ele
21、ctric circuit, circuit, through through programming method realization freelogic programming method realization freelogic function. function. Digital circuit application: Digital circuit application: Digital Digital circuit circuit and and numeral numeral electronic electronic technology technology
22、widespreadapplication to science and technology each domain and widespreadapplication to science and technology each domain and so so ontelevision, ontelevision, radar, radar, correspondence, correspondence, electronic electronic accounting accounting machine,automatic control, astronautics. machine
23、,automatic control, astronautics. 数字电路定义:数字电路定义: 用数字信号完成对数字量进行算术运算和逻辑运算的电路称为数字电路,用数字信号完成对数字量进行算术运算和逻辑运算的电路称为数字电路,或数字系统。由于它具有逻辑运算和逻辑处理功能,所以又称数字逻辑电或数字系统。由于它具有逻辑运算和逻辑处理功能,所以又称数字逻辑电路。路。 数字逻辑电路分类(按功能分)数字逻辑电路分类(按功能分) : 1 1、组合逻辑电路、组合逻辑电路 9/16/2019(完整版)数字电路基础知识外文翻译毕业设计论文 - 百度文库https:/ 简称组合电路,它由最基本的的逻辑门电路组合而
24、成。特点是:输出值只简称组合电路,它由最基本的的逻辑门电路组合而成。特点是:输出值只与当时的输入值有关,即输出惟一地由当时的输入值决定。电路没有记忆与当时的输入值有关,即输出惟一地由当时的输入值决定。电路没有记忆功能,输出状态随着输入状态的变化而变化,类似于电阻性电路,如加法功能,输出状态随着输入状态的变化而变化,类似于电阻性电路,如加法器、译码器、编码器、数据选择器等都属于此类。器、译码器、编码器、数据选择器等都属于此类。 2 2、时序逻辑电路、时序逻辑电路 简称时序电路,它是由最基本的逻辑门电路加上反馈逻辑回路(输出到输简称时序电路,它是由最基本的逻辑门电路加上反馈逻辑回路(输出到输入)或
25、器件组合而成的电路,与组合电路最本质的区别在于时序电路具有入)或器件组合而成的电路,与组合电路最本质的区别在于时序电路具有记忆功能。时序电路的特点是:输出不仅取决于当时的输入值,而且还与记忆功能。时序电路的特点是:输出不仅取决于当时的输入值,而且还与电路过去的状态有关。它类似于含储能元件的电感或电容的电路,如触发电路过去的状态有关。它类似于含储能元件的电感或电容的电路,如触发器、锁存器、计数器、移位寄存器、储存器等电路都是时序电路的典型器器、锁存器、计数器、移位寄存器、储存器等电路都是时序电路的典型器件。件。 数字电路的特点:数字电路的特点: 1 1、同时具有算术运算和逻辑运算功能、同时具有算
26、术运算和逻辑运算功能 数字电路是以二进制逻辑代数为数学基础,使用二进制数字信号,既能进数字电路是以二进制逻辑代数为数学基础,使用二进制数字信号,既能进行算术运算又能方便地进行逻辑运算行算术运算又能方便地进行逻辑运算 (与、(与、 或、或、非、非、判断、判断、 比较、比较、 处理等)处理等) ,因此极其适合于运算、比较、存储、传输、控制、决策等应用。因此极其适合于运算、比较、存储、传输、控制、决策等应用。 2 2、实现简单,系统可靠、实现简单,系统可靠 以二进制作为基础的数字逻辑电路,简单可靠,准确性高。以二进制作为基础的数字逻辑电路,简单可靠,准确性高。 3 3、集成度高,功能实现容易、集成度
27、高,功能实现容易 集成度高,体积小,功耗低是数字电路突出的优点之一。电路的设计、维集成度高,体积小,功耗低是数字电路突出的优点之一。电路的设计、维修、维护灵活方便,随着集成电路技术的高速发展,数字逻辑电路的集成修、维护灵活方便,随着集成电路技术的高速发展,数字逻辑电路的集成度越来越高,集成电路块的功能随着小规模集成电路(度越来越高,集成电路块的功能随着小规模集成电路(SSISSI) 、中规模集成、中规模集成9/16/2019(完整版)数字电路基础知识外文翻译毕业设计论文 - 百度文库https:/ 电路(电路(MSIMSI) 、大规模集成电路(、大规模集成电路(LSILSI) 、超大规模集成电
28、路(、超大规模集成电路(VLSIVLSI)的发)的发展也从元件级、器件级、部件级、板卡级上升到系统级。电路的设计组成展也从元件级、器件级、部件级、板卡级上升到系统级。电路的设计组成只需采用一些标准的集成电路块单元连接而成。对于非标准的特殊电路还只需采用一些标准的集成电路块单元连接而成。对于非标准的特殊电路还可以使用可编程序逻辑阵列电路,通过编程的方法实现任意的逻辑功能。可以使用可编程序逻辑阵列电路,通过编程的方法实现任意的逻辑功能。 数字电路的应用:数字电路的应用: 数字电路与数字电子技术广泛的应用于电视、雷达、通信、电子计算机、数字电路与数字电子技术广泛的应用于电视、雷达、通信、电子计算机、自动控制、航天等科学技术各个领域。自动控制、航天等科学技术各个领域。 9/16/2019(完整版)数字电路基础知识外文翻译毕业设计论文 - 百度文库https:/