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STM32F031x4 STM32F031x6
Pinouts and pin description
33
18
14
14
14
E3
-
PB0
I/O
TTa
-
TIM3_CH3,
TIM1_CH2N,
EVENTOUT
ADC_IN8
19
15
15
15
E2
14
PB1
I/O
TTa
-
TIM3_CH4,
TIM14_CH1,
TIM1_CH3N
ADC_IN9
20
-
16
-
-
-
PB2
I/O
FT
(3)
21
-
-
-
-
-
PB10
I/O
FTf
-
TIM2_CH3,
I2C1_SCL
-
22
-
-
-
-
-
PB11
I/O
FTf
-
TIM2_CH4,
EVENTOUT,
I2C1_SDA
-
23
16
0
16
E1
15
VSS
S
-
-
Ground
24
17
17
17
D1
16
VDD
S
-
-
Digital power supply
25
-
-
-
-
-
PB12
I/O
FT
-
TIM1_BKIN,
EVENTOUT,
SPI1_NSS
-
26
-
-
-
-
-
PB13
I/O
FT
-
TIM1_CH1N,
SPI1_SCK
-
27
-
-
-
-
-
PB14
I/O
FT
-
TIM1_CH2N,
SPI1_MISO
-
28
-
-
-
-
-
PB15
I/O
FT
-
TIM1_CH3N,
SPI1_MOSI
RTC_REFIN
29
18
18
18
D2
-
PA8
I/O
FT
-
USART1_CK,
TIM1_CH1,
EVENTOUT,
MCO
-
30
19
19
19
C1
17
PA9
I/O
FTf
-
USART1_TX,
TIM1_CH2,
I2C1_SCL
-
31
20
20
20
B1
18
PA10
I/O
FTf
-
USART1_RX,
TIM1_CH3,
TIM17_BKIN,
I2C1_SDA
-
Table 11. Pin definitions (continued)
Pin number
Pin name
(function after
reset)
Pin type
I/O
structure
Notes
Pin functions
LQ
FP4
8
LQ
FP3
2
UFQFPN3
2
UFQFPN2
8
WLCSP25
TSSOP20
Alternate functions
Additional
functions
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021-31660491
微可Vicor——值得信赖的元器件供应商
http://www.vicor.top/
021-31660491