EEPW-ARM Cortex M3 DIY资料系列之——外围芯片-DS18B20.pdf

EEPW-ARM Cortex M3 DIY资料系列之——外围芯片-DS18B20.pdf
DS18B20
Programmable Resolution
1-Wire Digital Thermometer
DESCRIPTION User-Definable Nonvolatile (NV) Alarm
The DS18B20 digital thermometer provides 9-bit Settings
to 12-bit Celsius temperature measurements and Alarm Search Command Identifies and
has an alarm function with nonvolatile user- Addresses Devices Whose Temperature is
programmable upper and lower trigger points. Outside Programmed Limits (Temperature
The DS18B20 communicates over a 1-Wire bus