Pinouts and pin description STM32F038x6
26/102 DocID026079 Rev 3
Table 10. Legend/abbreviations used in the pinout table
Name Abbreviation Definition
Pin name
Unless otherwise specified in brackets below the pin name, the pin function
during and after reset is the same as the actual pin name
Pin type
S Supply pin
I Input-only pin
I/O Input / output pin
I/O structure
FT 5 V-tolerant I/O
FTf 5 V-tolerant I/O, FM+ capable
TTa 3.3 V-tolerant I/O directly connected to ADC
POR
External power on reset pin with embedded weak pull-up
resistor, powered from V
DDA
TC Standard 3.3V I/O
B Dedicated BOOT0 pin
RST Bidirectional reset pin with embedded weak pull-up resistor
Notes
Unless otherwise specified by a note, all I/Os are set as floating inputs during
and after reset
Pin
functions
Alternate
functions
Functions selected through GPIOx_AFR registers
Additional
functions
Functions directly selected/enabled through peripheral registers
Table 11. Pin definitions
Pin number
Pin name
(function upon reset)
Pin type
I/O structure
Notes
Pin functions
LQFP48
UFQFPN32
UFQFPN28
WLCSP25
TSSOP20
Alternate functions
Additional
functions
1 - - - - VBAT S - - Backup power supply
2 - - - - PC13 I/O TC
(1)(2)
-
RTC_TAMP1,
RTC_TS,
RTC_OUT,
WKUP2
3----
PC14-OSC32_IN
(PC14)
I/O TC
(1)(2)
- OSC32_IN
4----
PC15-OSC32_OUT
(PC15)
I/O TC
(1)(2)
- OSC32_OUT
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