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1、前言：在网上看到《HowtoReadaDatasheet》这篇文章，觉得不错，对我这种电子菜鸟很有帮助，就把它翻译了一下，希望能对大家有点用处。我的E文水平有限，在《金山词霸》的帮助下翻译了此文，所以肯定存在很多问题，如果你发现什么问题，请一定指出，在此先谢谢大大家。Email:case1234@163.comFirehttp://firebox.8908.com2006-9-7HowtoReadaDatasheetPreparedfortheWIMSoutreachprogram5/6/02,D.GroverInordertouseaPICmicrocontroller,aflip-flop
2、,aphotodetector,orpracticallyanyelectronicdevice,youneedtoconsultadatasheet.Thisisthedocumentthatthemanufacturerprovidestellingyou•thetypicaldeviceperformance•minimumandmaximumrequirementsandcharacteristics•whatyoucandotothedevicewithoutharmingit•suggestedusesandhintsManufacturerswantyou,thedesigner
3、,tohaveasuccessfulexperiencewiththeirdevice.Theyaretryingtobehelpful.Theydon’talwayssucceed.Thedatasheetonthefollowingpagesisarelativelygooddatasheet.Ittriestoconciselytellyoueverythingyouneedtoknowaboutthedevice,acommon555timerchip(theduct-tapeoftheelectronicshobbyist).MostdatasheetsforICsfollowthe
4、samegenerallayout.Youdon’thavetounderstandeverythinginadatasheet.There’salotofinformationthatmightnotbeofanyusetoyou.Theannotationsthatfollowtrytopointoutpartsofthedatasheetthatyoushouldpayparticularattentionto.Wheredoyoufinddatasheets?Nowadaysyoucanfindalmostanydatasheetontheinternet,ofteninPDF(Acr
5、obat)form.Forexample,theLM555datasheetfromNationalSemiconductorisontheirwebsiteatwww.national.com.WhatistheLM555?TheLM555isatimerchipthatusesexternalresistorsandcapacitorstogenerateeitherasinglepulseofacertainduration,oracontinuoussequenceofpulseswithavarietyofpulsewidthspossible.Becauseitisaverygen
6、eralpurposecollectionoffunctionalblockssuchascomparators,aflip-flop,internalvoltagedivider,highpoweroutputstage,andsoon,anumberofdifferenttiming-relatedfunctionsarepossible.Entirebookshavebeenwrittenaboutthe555,thoughitisoftenusedwhenanotherICwouldworkbetter.(SeeforexampletheCD4538timerchip.)怎样读数据手册
7、写给WIMS推广计划5/6/02,D.Grover为了使用PIC微控制器、触发器、光电检测器或者其它任何电子器件，你需要参考datasheet。厂商提供datasheet用来告诉你：ò典型的器件特性ò器件特性的最大最小极值ò在不损坏器件的情况下你能对器件做什么ò典型应用和提示厂商（即器件设计者）希望你能成功地使用他们的产品。他们尽最大努力提供帮助，但并不总是有成效的。下面这个datasheet是一
