Datasheet
DocID15056 Rev 5 23/80
STM32F102x8, STM32F102xB Pinout and pin description
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7. The pins number 5 and 6 in the LQFP48 package are configured as OSC_IN/OSC_OUT after reset, however the
functionality of PD0 and PD1 can be remapped by software on these pins. For more details, refer to the Alternate function
I/O and debug configuration section in the STM32F10xxx reference manual.
The use of PD0 and PD1 in output mode is limited as they can only be used at 50 MHz in output mode.
8. This alternate function can be remapped by software to some other port pins (if available on the used package). For more
details, refer to the Alternate function I/O and debug configuration section in the STM32F10xxx reference manual,
available from the STMicroelectronics website: www.st.com.