Datasheet
Pinouts and pin descriptions STM32F071x8 STM32F071xB
32/122 DocID025451 Rev 6
Table 12. 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
TC Standard 3.3 V 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 13. STM32F071x8/xB pin definitions
Pin numbers
Pin name
(function upon
reset)
Pin
type
I/O structure
Notes
Pin functions
UFBGA100
LQFP100
LQFP64
LQFP48/UFQFPN48
WLCSP49
Alternate functions
Additional
functions
B2 1 - - - PE2 I/O FT - TSC_G7_IO1, TIM3_ETR -
A1 2 - - - PE3 I/O FT - TSC_G7_IO2, TIM3_CH1 -
B1 3 - - - PE4 I/O FT - TSC_G7_IO3, TIM3_CH2 -
C2 4 - - - PE5 I/O FT - TSC_G7_IO4, TIM3_CH3 -
D2 5 - - - PE6 I/O FT - TIM3_CH4
WKUP3,
RTC_TAMP3
E2 6 1 1 B7 VBAT S - - Backup power supply
C1 7 2 2 D5 PC13 I/O TC
(1)
(2)
-
WKUP2,
RTC_TAMP1,
RTC_TS,
RTC_OUT
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