By using the internal resources of the sensor DS18X20, this paper replaces the 48-bit of digital serial number by BCD code, and introduces a practical technique to simplify the address encoding in multi-point temperature detecting system.

• 借用数字式传感器DS18X2 0内部资源 ,采用BCD码取代 4 8位二进制序列号 ,介绍一种在多点温度检测中简化DS18X2 0地址编码的实用技术。