返回任务模式下的电池电源

摘要：本应用笔记介绍了如何Teridian公司的71M6531 - 71M6534能源表IC可以返回到任务模式，电网缺席时，电池电源下执行计算密集型的任务和模拟功能。在掉电模式时，这些单和多相电能计量IC降低时钟速度，它支持的基本操作，如篡改检测，显示和其他家庭功能，操作主机。

71M653x
A Maxim Integrated Products Brand

APPLICATION NOTE

AN_653x_019 APRIL 2011



Return to Mission Mode under Battery Power
Introduction
The 71M653x Family of metering ICs operates the MPU at reduced clock speed when in brownout mode, i.e. with
the mains power missing and with operation supported by a battery or super-capacitor. The reduced clock speed
supports basic operations like tamper detection, display and other household functions, but not communication at
UART speeds higher than 300 baud and computation-