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在TCA8418旁边有13.56MHZ的读卡模块，TCA8418用来做键盘扩展，有时候设备开关机，或进入睡眠状态，启动或唤醒会出现键盘失灵现象。8418是什么原因受干扰，有什么办法避免么。
能量一下TCA8418的管脚上是否有干扰耦合进去？
量哪些管脚？
量哪些引脚？？
