楼主你好,看数据手册,在power down 模式下面, IDD的典型值为1.6uA-10uA。
但是有这几点需要注意下:
[2] Tamb = 25 C.
[3] IDD measurements were performed with all pins configured as GPIO outputs driven ...
楼主你好,看数据手册,在power down 模式下面, IDD的典型值为1.6uA-10uA。
但是有这几点需要注意下:
[2] Tamb = 25 C.
[3] IDD measurements were performed with all pins configured as GPIO outputs driven LOW and pull-up resistors disabled.
[10] All oscillators and analog blocks turned off.
你查看下,看看是否这些条件满足了, 40uA的确太大了,你看看其他的模块是否都关了,还有外围的电路能不接的都不接,只测试MCU的耗电。