1、苏州大学本科生毕业设计（论文）附件：外文文献资料与中文翻译稿外文文献资料收集：苏州大学应用技术学院11电子班（学号1116405045）颜媛The introduction to the DS18B201. DESCRIPTION The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user programmable upper and lower trigger poi
2、nts. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line for communication with a central microprocessor. It has 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 de
3、rive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18B2
4、0s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems. 2.FEATURES · Unique 1-Wire® Interface Requires Only One P
5、ort Pin for Communication l ·Each Device has a Unique 64-Bit Serial Code Stored in an On-Board ROM l ·Multi-drop Capability Simplifies Distributed Temperature-Sensing Applications l·Requires No External Components·Can Be Powered from Data Line; Power Supply Range is 3.0V to 5.5V l·Measures Te
6、mperatures from -55°C to +125°C (-67°F to +257°F) l第20页苏州大学本科生毕业设计（论文）附件：外文文献资料与中文翻译稿·±0.5°C Accuracy from -10°C to +85°C ·Thermometer Resolution is User Selectable from 9 to 12 Bits l·Converts Temperature to 12-Bit Digital Word in 750ms (Max) l ·User-Definable Nonvolatile (NV) Alarm Settings
7、·Alarm Search Command Identifies and Addresses Devices Whose Temperature is ·Outside Programmed Limits ·Software Compatible with the DS1822 ·Applications Include Thermostatic Controls, Industrial Systems, Consumer ·Products, Thermometer
