TC77热传感器与PICmicro MCU 接口

Silicontemperaturesensorsofferaneasy-to-usealter-

nativetotraditionaltemperaturesensors,suchasther-

mocouple,thermistorsandRTDs.TheTC77SPI™

ThermalSiliconSensorisespeciallysuitedforembed-

dedsystems,duetoitsSPIinterface.Thisservesto

provideastraight-forwardandeasywaytointerfaceto

amicrocontroller.Thisapplicationnotewilldiscuss

systemintegration,firmwareimplementationandPCB

layouttechniquesfortheTC77inanembedded

system.

Microchiphasdevelopedahardwareplatformcalled

thePICkit™1FLASHStarterKit,allowingthedesigner

toquicklybegintheirsystemdevelopment.Addition-

ally,MicrochiphasdevelopedaTC77PICtail™Daugh-

terBoardthatinterfacesdirectlytothePICkit1FLASH

StarterKit.Thesetwoboardsareusedtodemonstrate

thetechniquesforintegratingtheTC77intoanembed-

dedsystemsenvironment.Bothofthesedevelopment

boardsareavailableontheMicrochipwebsiteat

www.microchip.com.MAN913InterfacingtheTC77ThermalSensortoaPICmicroMicrocontrollerTheTC77SPIThermalSensorPICtaildaughterAuthor:SteveBibleandJimLepkowskiMicrochipTechnologyInc.boardisdesignedtodemonstratetheeaseofintegratingadigitalsiliconICtemperaturesensortoaPICmicromicrocontrollerunit(MCU).TheTC77INTRODUCTIONPICtaildaughterbo