DS18B20 全新原装进口现货，优势供应

The DS18B20 Digital Thermometer provides 9 to 12–b

it centigrade temperature measurements and has

an alarm function with nonvolatile

user-programmable upper and lower trigger points. The DS18B20

communicates over a 1-Wire bus that by defin

ition requires only one data line (and ground) for

communication with a central microprocessor. It ha

s an operating temperature range of –55°C to +125°C

and is accurate to

0.5



C over the range of –10°C to +85°C. In addition, the DS18B20 can derive power

directly from the data line (“parasite power”), eli

minating the need for an external power supply.