Table 7. Legend/Abbreviations Used In The Pinout Table - STMicroelectronics STM32F050G6 Manual

STM32F050xx
Table 7.
Name
Pin name
Pin type
I/O structure
Notes
Pin
functions
Legend/abbreviations used in the pinout table
Abbreviation
Unless otherwise specified in brackets below the pin name, the pin function
during and after reset is the same as the actual pin name
S
I
I/O
FT
FTf
TTa
TC
B
RST
Unless otherwise specified by a note, all I/Os are set as floating inputs during
and after reset
Alternate
Functions selected through GPIOx_AFR registers
functions
Additional
Functions directly selected/enabled through peripheral registers
functions
Doc ID 023079 Rev 3
Input only pin
Input / output pin
5 V tolerant I/O
5 V tolerant I/O, FM+ capable
3.3 V tolerant I/O directly connected to ADC
Standard 3.3V I/O
Dedicated BOOT0 pin
Bidirectional reset pin with embedded weak pull-up resistor
Pinouts and pin description
Definition
Supply pin
25/98