DS18B20 in form and in transistor like, there are three legs. Voltage range of 3.0 V to 5.5 V without standby power measurement temperature range of-55 to+125 ℃. Programmable temperature sensor has a resolution of 9 ~ 12-bit temperature is converted to 12-bit digital format for a maximum of 750 ms user-definable nonvolatile temperature alarm setting range of applications, including temperature control, industrial systems, consumer electronics, thermometers, or any heat-sensitive system.

Basedon51MCUDS18B20temperaturesensorandcircuitClanguageprogram.doc

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