


全文预览已结束
下载本文档
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
无 锡 职 业 技 术 学 院外文翻译原文:Digital circuit definition:Completes with the digital signal to the digital quantity carries onthe arithmetic operation and the logic operation electric circuit iscalled the digital circuit, or number system. Because it has the logicoperation and the logical processing function, therefore calls thenumeral logic circuit.Numeral logic circuit classification (according to function minute):1st, combinatory logic electric circuitThe abbreviation combination circuit, it becomes by the mostbasic logical gate electric circuit combination. The characteristicis: Output value only and then input value related, namely output onlyby then input value decision. The electric circuit has not rememberedthe function, the output condition changes along with the inputcondition change, is similar to the resistance electric circuit, likethe accumulator, the decoder, the encoder, the data selector and so onall belong to this kind.2nd, succession logic circuitThe abbreviation sequence circuit, it is adds on the feedbacklogic return route by the most basic logical gate electric circuit (tooutput the electric circuit which input) or the component combinationbecomes, lies in the sequence circuit with the combination circuitessence difference to have the memory function. The sequence circuitcharacteristic is: The output not only was decided by then inputvalue, moreover also the and circuit past condition concerned. It issimilar to containing the stored energy part the inductance or theelectric capacity electric circuit, like electric circuit and so ontrigger, latch, counter, shift register, reservoir all is the sequencecircuit typical component.Digital circuit characteristic:1st, simultaneously has the arithmetic operation and the logicoperation functionThe digital circuit is take the binary system logic algebra asmathematics foundation, the use binary numeral signal, both can carryon the arithmetic operation and to be able conveniently to carry onthe logic operation (with, or, non-, judgement, comparison, processingand so on), therefore extremely suits to application and so onoperation, comparison, memory, transmission, control, decision-making.2nd, realization simple, the system is reliableBy binary system underlie numeral logic circuit, simplereliable, the accuracy is high.3rd, integration rate high, the function realization is easyIntegration rate high, volume small, the power loss is low isone of digital circuit prominent merits. Electric circuit design,service, maintenance nimble convenient, along with the integratedcircuit technology high speed development, the numeral logic circuitintegration rate is more and more high, integrated circuit blockfunction along with small scale integration electric circuit (SSI),center scale integrated circuit (MSI), large scale integrated circuit(LSI), ultra large scale integrated circuit (VLSI) the developmentalso from the part level, the component level, the part level, theboard card level rises to the system level. The electric circuitdesign composition only must use some standards the integrated circuitblock unit connection to become. Also may use the programmableforeword logic array electric circuit regarding the non- standardspecial electric circuit, through programming method realization freelogic function.Digital circuit application:Digital circuit and numeral electronic technology widespreadapplication to science and technology each domain and so ontelevision, radar, correspondence, electronic accounting machine,automatic control, astronautics.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,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。数字逻辑电路分类(按功能分):1、组合逻辑电路简称组合电路,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。2、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件。数字电路的特点:1、同时具有算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,既能进行算术运算又能方便地进行逻辑运算(与、或、非、判断、比较、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。2、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。3、集成度高,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
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 2025年江西省吉安市峡江县峡江中学高一物理第二学期期末联考试题含解析
- 2025届贵州省遵义凤冈二中物理高二第二学期期末检测模拟试题含解析
- 江苏省扬州市梅岭中学2025届高二物理第二学期期末统考试题含解析
- 安徽省滨湖寿春中学2025年物理高二下期末学业质量监测模拟试题含解析
- 法官角色转型与沟通策略
- 脑卒中康复运动依从性研究
- 二维材料生物成像-洞察及研究
- 高性能Web应用开发-洞察阐释
- 酒精性脂肪肝纳米疫苗-洞察及研究
- 行为干预与残疾人福利政策效果评估-洞察阐释
- 2025年辅警招聘考试试题库完整答案
- 宿州萧县乡镇事业单位招聘考试真题2024
- 2025至2030全球及中国近炸引信传感器行业项目调研及市场前景预测评估报告
- 部编版三年级语文上册 写字表
- 工厂十周年活动策划方案
- 天津汇融商业管理有限公司招聘笔试题库2025
- 广东教育学院德育研究中心
- 2025至2030中国清洁机器人市场经营效益与投融资发展状况报告
- 产品标品牌管理制度
- 高压气体绝缘设备中SF6分解产物检测SO2传感器的设计与应用
- DBJ04-T494-2025 《坡地建筑设计防火标准》
评论
0/150
提交评论