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STM32??????????????????????????????????????????2.0~3.6V????????????1.8V????????
Vdda?Vssa???Vdd?Vss?????????????????????????????????Vdd?Vss???????????Vref+?Vref-????ADC????????????????????????Vdda?Vssa???
Vbat?????????????PC13~PC15??????????Vdd??????????????Vbat???????????????????????RTC???
??????????????
?????????PVD?????Vdd??????????????????????????????
?????????????????????CPU???????????????????????????????????
Cortex-M3???????????
STM32F10???????????
?????????????????Vdd?Vbat?????????
??????????????????????????Vdd?Vbat????????
STM32F10X??????????????????????????SYSCLK??HIS?PLLCLK?HSE???????????
HSI?????8MHz RC?????????????PLL?????HSE?HSI??????????????SYSCLK?LSE????RTC???????LSI?????????????
HSE??????????????????25MHz?HSI???????HSICAL?HSITRIM?
???????????HSI??PLL?HSE???????????????????PLL???????????????
RTC?????HSE/128?LSE?LSI????????????
IWDG???LSI????????????????
?????HSI?????????HSE??PLL????PLL?????????????SYSCLK?????STM32F427??????????????????PLL???
??????????????????
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