本人想设计一款电路,希望掉电以后2540还能工作几分钟,准备在VCC输入端接入法拉电容,
现在的问题是法拉电容上电以后需要有一段时间充电,使得VCC缓慢上升到2V以上,不知道
2540会不会工作不正常?
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