Datasheet

Pinouts and pin description STM32F303xB STM32F303xC
36/133 DocID023353 Rev 7
21 VREF+
(3)
S Positive reference voltage
22 VDDA S Analog power supply
13 9
VDDA/
VREF+
S Analog power supply/Positive reference voltage
23 14 10 PA0 I/O TTa
USART2_CTS,
TIM2_CH1_ETR, TIM8_BKIN,
TIM8_ETR, TSC_G1_IO1,
COMP1_OUT, EVENTOUT
ADC1_IN1, COMP1_INM,
RTC_ TAMP2, WKUP1,
COMP7_INP
24 15 11 PA1 I/O TTa
USART2_RTS, TIM2_CH2,
TSC_G1_IO2, TIM15_CH1N,
RTC_REFIN, EVENTOUT
ADC1_IN2, COMP1_INP,
OPAMP1_VINP,
OPAMP3_VINP
25 16 12 PA2 I/O TTa
USART2_TX, TIM2_CH3,
TIM15_CH1, TSC_G1_IO3,
COMP2_OUT, EVENTOUT
ADC1_IN3, COMP2_INM,
OPAMP1_VOUT
26 17 13 PA3 I/O TTa
USART2_RX, TIM2_CH4,
TIM15_CH2, TSC_G1_IO4,
EVENTOUT
ADC1_IN4, OPAMP1_VINP,
COMP2_INP,
OPAMP1_VINM
27 18 PF4 I/O TTa
(1)
COMP1_OUT, EVENTOUT ADC1_IN5
28 19 VDD_4 S
29 20 14 PA4 I/O TTa
SPI1_NSS, SPI3_NSS,
I2S3_WS, USART2_CK,
TSC_G2_IO1, TIM3_CH2,
EVENTOUT
ADC2_IN1, DAC1_OUT1,
OPAMP4_VINP,
COMP1_INM, COMP2_INM,
COMP3_INM, COMP4_INM,
COMP5_INM,
COMP6_INM,COMP7_INM
30 21 15 PA5 I/O TTa
SPI1_SCK, TIM2_CH1_ETR,
TSC_G2_IO2, EVENTOUT
ADC2_IN2, DAC1_OUT2
OPAMP1_VINP,
OPAMP2_VINM,
OPAMP3_VINP,
COMP1_INM, COMP2_INM,
COMP3_INM,
COMP4_INM,COMP5_INM,
COMP6_INM, COMP7_INM
31 22 16 PA6 I/O TTa
SPI1_MISO, TIM3_CH1,
TIM8_BKIN, TIM1_BKIN,
TIM16_CH1, COMP1_OUT,
TSC_G2_IO3, EVENTOUT
ADC2_IN3, OPAMP2_VOUT
Table 11. STM32F303xB/STM32F303xC pin definitions (continued)
Pin number
Pin name
(function
after
reset)
Pin type
I/O structure
Notes
Pin functions
LQFP100
LQFP64 LQFP48
Alternate functions Additional functions