DS18B20A50

Marking：18B20；Package：SOP8；The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user- programmable upper and lower trigger points.

FEATURES ?1-WireInterfaceRequiresOnlyOnePortPinfor Communication ?EachDevicehasaUnique64-BitSerialCode StoredinanOn-BoardROM ?MultidropCapabilitySimplifiesDistributed Temperature-SensingApplications ?RequiresNoExternalComponents ??CanBePoweredfromDataLine;