可编程数字温度计ds18b20-英文翻译.rar

The DS18B20 Digital Thermometer provides 9 to 12–bit 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 definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of –55°C to +125°Cand is accurate to 0.5 C over the range of –10°C to +85°C. In addition, the DS18B20 can derive powerdirectly from the data line (“parasite power”), eliminating the need for an external power supply.

该DS18B20的数字温度计提供9至12位的摄氏温度测量，并具有与非易失性用户可编程上限和下限报警功能。信息单线接口送入 DS1820 或从 DS1820 送出，因此按照定义只需要一条数据线（和地线）与中央微处理器进行通信。它的测温范围从-55 ° C到 +125 ° C，其中从-10 ° C至+85 ° C可以精确到0.5° C 。此外，DS18B20可以从数据线直接供电（“寄生电源”），从而消除了供应需要一个外部电源。