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ID:25873058
大小:632.00 KB
页数:26页
时间:2018-11-23
《ds18b20数字式温度传感器中英文资料外文翻译文献》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、外文翻译(原文)中英文资料外文翻译文献TheintroductiontoTheDS18B201.DESCRIPTIONTheDS18B20digitalthermometerprovides9-bitto12-bitCelsiustemperaturemeasurementsandhasanalarmfunctionwithnonvolatileuserprogrammableupperandlowertriggerpoints.TheDS18B20communicatesovera1-Wirebusthatbydefinitionrequireso
2、nlyonedatalineforcommunicationwithacentralmicroprocessor.Ithasanoperatingtemperaturerangeof-55°Cto+125°Candisaccurateto±0.5°Covertherangeof-10°Cto+85°C.Inaddition,theDS18B20canderivepowerdirectlyfromthedataline(“parasitepower”),eliminatingtheneedforanexternalpowersupply.EachDS1
3、8B20hasaunique64-bitserialcode,whichallowsmultipleDS18B20stofunctiononthesame1-Wirebus.Thus,itissimpletouseonemicroprocessortocontrolmanyDS18B20sdistributedoveralargearea.ApplicationsthatcanbenefitfromthisfeatureincludeHVACenvironmentalcontrols,temperaturemonitoringsystemsinsid
4、ebuildings,equipment,ormachinery,andprocessmonitoringandcontrolsystems.2.FEATURESlUnique1-Wire®InterfaceRequiresOnlyOnePortPinforCommunication26外文翻译(原文)lEachDevicehasaUnique64-BitSerialCodeStoredinanOn-BoardROMlMulti-dropCapabilitySimplifiesDistributedTemperature-SensingApplica
5、tionslRequiresNoExternalComponentslCanBePoweredfromDataLine;PowerSupplyRangeis3.0Vto5.5VlMeasuresTemperaturesfrom-55°Cto+125°C(-67°Fto+257°F)l±0.5°CAccuracyfrom-10°Cto+85°ClThermometerResolutionisUserSelectablefrom9to12BitslConvertsTemperatureto12-BitDigitalWordin750ms(Max)lUse
6、r-DefinableNonvolatile(NV)AlarmSettingslAlarmSearchCommandIdentifiesandAddressesDevicesWhoseTemperatureisOutsideProgrammedLimitslSoftwareCompatiblewiththeDS1822lApplicationsIncludeThermostaticControls,IndustrialSystems,ConsumerProducts,Thermometers,orAnyThermallySensitiveSystem
7、3.OVERVIEWFigure1showsablockdiagramoftheDS18B20,andpindescriptionsaregiveninthePinDescriptiontable.The64-bitROMstoresthedevice’suniqueserialcode.Thescratchpadmemorycontainsthe2-bytetemperatureregisterthatstoresthedigitaloutputfromthetemperaturesensor.Inaddition,thescratchpadpro
8、videsaccesstothe1-byteupperandloweralarmtriggerregiste
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