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CC2530 进入PM2休眠是电流有300uA?

Other Parts Discussed in Thread: CC2530

现在项目有用CC2530IC,碰到一个问题,P1.3接一个按键,

1:当接到的按键是常开型的时候,IO触发方式为下降沿触发,同时按键没按下的时候,CC2530进入休眠(PM2模式时候),休眠电流测试是1uA左右,但是如果按键一直按下,则电流为300uA,

2:当按键接常闭型,IO口触发为上升沿触发,没触发的时候进入休眠时候,休眠电流为300uA,若触发时候,则为1.uA左右。

从上面的现象来看,是否只要IO接地,休眠电流就会达到300uA?