超低功耗电子温度计的设计

Design of Electronic Thermometer of Supper Low Power Consumption

以MSP430F2274单片机作为系统的控制核心设计超低功耗电子温度计,选用总线式温度传感器DS18B20测量温度,显示部分采用LCD驱动专用芯片HT1621驱动4位半液晶LCD玻璃片。试验表明,系统达到了设计要求,并且整机静态功耗约为2.97μW。

With MSP430F2274 serving as the core of the control part of electronic thermometer, temperature is measured by bus temperature sensor DS18B20. The display is realized by LCD driven by LCD controller HT1621. It is proved by experiment that the electronic thermometer system has achieved all functions as it has been designed, and the system static power consumption is only 5.97 μW.