ds18b20 datasheet下载

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.

Because each DS18B20 contains a unique silicon serial number, mulTIple DS18B20s can exist on the

same 1-Wire bus. This allows for placing temperature sensors in many different places. ApplicaTIons

where this feature is useful include HVAC environmental controls, sensing temperatures inside buildings,

equipment or machinery, and process monitoring and control.