摘要：由于其独特的电路， RX输入功能，不同于其他数字输入Teridian公司的71M6511 ， 71M6511H ， 71M6513 ， 71M6515H单和三相电能计量IC系列。本应用笔记说明了什么独特的考虑也适用于超过0至3.6V范围内的RX引脚的信号接口时。本文还介绍了基于5V的电路连接到RX引脚时，引脚总结和注意事项。 71M651x Energy Meter IC APPLICATION NOTE AN_651X_019 MAY 2005 Interfacing to the RX Pin of the 6511, 6513 and 6515 Due to unique circuitry on the RX input, its behavior is slightly different from the other digital inputs of the 651X family of metering ICs. This application note explains what considerations apply when interfacing signals exceeding the 0 to 3.6V range to the RX pin. Applications with voltages at the RX in ……