
wake up引脚并联的电容C16,容值为15pf,在使用时发现:芯片正常上电工作,用万用表测量wake up引脚和GND间电压,表笔碰到wake up引脚,芯片就损坏,连续试了6块芯片都损坏。芯片损坏现象是,芯片内部5V电源无法建立。
后将C16容值改大到10nf,不再损坏。
想问下这是什么原因?,这个wake up 引脚外部电路该如何配置?
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