Datasheet

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STM32F303xB STM32F303xC Pinouts and pin description
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Table 11. STM32F303xB/STM32F303xC pin definitions
Pin number
Pin name
(function
after
reset)
Pin type
I/O structure
Notes
Pin functions
LQFP100
LQFP64 LQFP48
Alternate functions Additional functions
1 PE2 I/O FT
(1)
TRACECK, TIM3_CH1,
TSC_G7_IO1, EVENTOUT
2 PE3 I/O FT
(1)
TRACED0, TIM3_CH2,
TSC_G7_IO2, EVENTOUT
3 PE4 I/O FT
(1)
TRACED1, TIM3_CH3,
TSC_G7_IO3, EVENTOUT
4 PE5 I/O FT
(1)
TRACED2, TIM3_CH4,
TSC_G7_IO4, EVENTOUT
5 PE6 I/O FT
(1)
TRACED3, EVENTOUT WKUP3, RTC_TAMP3
611 V
BAT
S Backup power supply
722PC13
(2)
I/O TC TIM1_CH1N
WKUP2, RTC_TAMP1,
RTC_TS, RTC_OUT
833
PC14
(2)
OSC32_IN
(PC14)
I/O TC OSC32_IN
944
PC15
(2)
OSC32_
OUT
(PC15)
I/O TC OSC32_OUT
10 PF9 I/O FT
(1)
TIM15_CH1, SPI2_SCK,
EVENTOUT
11 PF10 I/O FT
(1)
TIM15_CH2, SPI2_SCK,
EVENTOUT
12 5 5
PF0-
OSC_IN
(PF0)
I/O FTf TIM1_CH3N, I2C2_SDA, OSC_IN
13 6 6
PF1-
OSC_OUT
(PF1)
I/O FTf I2C2_SCL OSC_OUT
14 7 7 NRST I/O RST Device reset input / internal reset output (active low)
15 8 PC0 I/O TTa
(1)
EVENTOUT ADC12_IN6, COMP7_INM
16 9 PC1 I/O TTa
(1)
EVENTOUT ADC12_IN7, COMP7_INP
17 10 PC2 I/O TTa
(1)
COMP7_OUT, EVENTOUT ADC12_IN8
18 11 PC3 I/O TTa
(1)
TIM1_BKIN2, EVENTOUT ADC12_IN9
19 PF2 I/O TTa
(1)
EVENTOUT ADC12_IN10
20 12 8
VSSA/
VREF-
S Analog ground/Negative reference voltage