SPI数字式温度传感器TC72与PICmicro MCU接口

TheTC72isadigitalCMOSsilicontemperature

sensorthatprovidesanaccuratedigitaltemperature

measurement.Dataisconvertedfromaninternal

diodetemperature-sensingelementtoadigitalformat

thatcanbedirectlyinterfacedtoamicrocontroller.The

TC72sensoroffersmanysystem-leveladvantages,

includingtheintegrationofthesensorandsignal-

conditioningcircuitryinasmallintegratedcircuit(IC)

package.TheTC72alsohasanOne-shotConversion

mode,whichperformsasingletemperaturemeasure-

mentandthengoesintopower-savingShutdown

mode.TheOne-shotConversionmodemakesthis

sensoragoodchoiceforpower-critical,portable

applications.AN940InterfacingtheTC72SPIDigitalTemperatureSensortoaPICmicroMicrocontrollerAuthor:JimLepkowskiandSteveBibleTheTC72digitaltemperaturesensorisespeciallyMicrochipTechnologyInc.suitedforembeddedsystemsduetoitsSPIinterface,whichservestoprovideastraightforwardandeasywaytointerfacetoamicrocontroller.ThisapplicationnoteINTRODUCTIONwilldiscusssystemintegration,firmwareimplementa-