ds18b20数字温度计简介 毕业论文外文翻译

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1、外文翻译DS18B20briefintroduction：FEATURESUnique1-WireinterfacerequiresonlyoneportpinforcommunicationEachdevicehasaunique64-bitserialcodestoredinanonboardROMMultidropcapabilitysimplifiesdistributedtemperaturesensingapplicationsRequiresnoexternalcomponentsCanbepoweredfromda

2、taline.Powersupplyrangeis3.0Vto5.5VMeasurestemperaturesfrom–55°Cto+125°C(–67°Fto+257°F)0.5Caccuracyfrom–10°Cto+85°CThermometerresolutionisuser-selectablefrom9to12bitsConvertstemperatureto12-bitdigitalwordin750ms(max.)User-definablenonvolatile(NV)alarmsettingsAlarmsear

3、chcommandidentifiesandaddressesdeviceswhosetemperatureisoutsideofprogrammedlimits(temperaturealarmcondition)Availablein8-pinSO(150mil),8-pinSOP,and3-pinTO-92packagesSoftwarecompatiblewiththeDS1822Applicationsincludethermostaticcontrols,industrialsystems,consumerproduc

4、ts,thermometers,oranythermallysensitive特征：独特的单线接口，只需1个接口引脚即可通信每个设备都有一个唯一的64位串行代码存储在光盘片上多点能力使分布式温度检测应用得以简化不需要外部部件可以从数据线供电，电源电压范围为3.0V至5.5V测量范围从-55°C至+125°C（-67°F至257°F），从-10℃至+85°C的精度为0.5°C温度计分辨率是用户可选择的9至12位转换12位数字的最长时间是750ms用户可定义的非易失性的温度告警设置告警搜索命令识别和寻址温度在编定的极限之外的器件（温度

5、告警情况）采用8引脚SO（150mil），8引脚SOP和3引脚TO-92封装软件与DS1822兼容应用范围包括恒温控制工业系统消费类产品温度计或任何热敏系统DESCRIPTIONTheDS18B20DigitalThermometerprovides9to12–bitcentigradetemperaturemeasurementsandhasanalarmfunctionwithnonvolatileuser-programmableupperandlowertriggerpoints.TheDS18B20communicate

6、sovera1-Wirebusthatbydefinitionrequiresonlyonedataline(andground)forcommunicationwithacentralmicroprocessor.Ithasanoperatingtemperaturerangeof–55°Cto+125°Candisaccurateto0.5Covertherangeof–10°Cto+85°C.Inaddition,theDS18B20canderivepowerdirectlyfromthedataline(“parasit

7、epower”),eliminatingtheneedforanexternalpowersupply.EachDS18B20hasaunique64-bitserialcode,whichallowsmultipleDS18B20stofunctiononthesame1–wirebus;thus,itissimpletouseonemicroprocessortocontrolmanyDS18B20sdistributedoveralargearea.Applicationsthatcanbenefitfromthisfeat

8、ureincludeHVACenvironmentalcontrols,temperaturemonitoringsystemsinsidebuildings,equipmentormachinery,andprocessmonitoringand