标签: tc74

TheTC74isaseriallyaccessibledigitaltemperaturesensorthatcandeterminetemperaturesintherangeof25°Cto85°Cwith±2°absoluteaccuracyor0°Cto125°Cwith±3°absoluteaccuracy.Temperatureinfor-mationisretrievedfromtheTC74viaatwowireSMBus/I2C™compatibleinterface.TheTC74repre-sentsthetemperatureasan8-bittwo’scomplementsignedintegerthathasadirectcorrespondencetothedevice’stemperatureindegreesCresultingina1°tem-peratureresolution.TheTC74isavailableineightaddressversionssothateightdevicescanbemoni-toredonthesametwowireSMBusinterfacewithnoadditionalcircuitry.TB050MonitoringMultipleTemperatureNodesUsingTC74ThermalSensorsandaPIC16C505additionalcircuitry,althoughcareshouldbetakentoAuthor:WardBrownensurethatthecombinationofthePIC16C505internalMicrochipTechnologyInc.pull-upimpedancewiththecumulativeloadcapaci-tancemeetsthetimingrequirementsoftheTC74.Proper……