DESCRIPTION
●The DS18B20 Digital Thermometer provides 9 to 12-bit (configurable) temperature readings which
●indicate the temperature of the device.
●Information is sent to/from the DS18B20 over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor to a DS18B20. Power for reading, writing, and performing temperature conversions can be derived from the data line itself with no need for an external power source.
●FEATURES
●Unique 1-Wire interface requires only one port pin for communication
●Multidrop capability simplifies distributed temperature sensing applications
●Requires no external components
●Can be powered from data line. Power supply range is 3.0V to 5.5V
●Zero standby power required
●Measures temperatures from -55°C to +125°C. Fahrenheit equivalent is -67°F to +257°F
●±0.5°C accuracy from -10°C to +85°C
●Thermometer resolution is programmable from 9 to 12 bits
●Converts 12-bit temperature to digital word in 750 ms (max.)
●User-definable, nonvolatile temperature alarm settings
●Alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition)
●Applications include thermostatic controls, industrial systems, consumer products, thermometers, or any thermally sensitive system
