Maxim DS18B20 Unique 1-Wire® Interface Requires Only One Port Pin for Communication Reduce Component Count with Integrated Temperature Sensor and EEPROM Measures Temperatures from -55°C to +125°C (-67°F to +257°F) ±0.5° C Accuracy from -10°C to +85°C Programmable Resolution from 9 Bits to 12 Bits No External Components Required