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28 天
STM32电源框图解析(VDD、VSS、VDDA、VSSA、VREF+、VREF-、VBAT等的区别)
STM32的工作电压(VDD )为2.0~3.6V,通过内置的电压调节器提供所需的1.8V电源,当主电源VDD 掉电后,通过VBAT 脚为实时时钟(RTC)和备份寄存器提供电源(下图为STM32F1**系列电源框架图,STM32基本大同小异)。 VCC电路的供电正电压VDDD芯片的工作数字正电压 GND电路的 ...
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