DS18B20 Temperature Sensor

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 supplyrange 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

Wiki & External links

• DS18B20 Datasheet