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Contents

README

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STM32F303VCT6

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-100(14x14)

STM32F303VCT6 from STMicroelectronics, in a LQFP-100(14x14). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model, then checked against ST open pin data); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 PE2 bidirectional GPIO port E bit 2, 5V tolerant I/O with alternate functions for TRACECK, TIM3_CH1, TSC_G7_IO1, EVENTOUT
2 PE3 bidirectional GPIO port E bit 3, 5V tolerant I/O with alternate functions for TRACED0, TIM3_CH2, TSC_G7_IO2, EVENTOUT
3 PE4 bidirectional GPIO port E bit 4, 5V tolerant I/O with alternate functions for TRACED1, TIM3_CH3, TSC_G7_IO3, EVENTOUT
4 PE5 bidirectional GPIO port E bit 5, 5V tolerant I/O with alternate functions for TRACED2, TIM3_CH4, TSC_G7_IO4, EVENTOUT
5 PE6 bidirectional GPIO port E bit 6, 5V tolerant I/O with alternate functions for TRACED3, EVENTOUT, and wake-up capability from Standby mode
6 VBAT power_in Backup power supply for RTC and backup registers, 2.0-3.6V
7 PC13 bidirectional GPIO port C bit 13, 3.3V I/O with alternate function for TIM1_CH1N and RTC functions, max 2 MHz speed
8 PC14 bidirectional GPIO port C bit 14 or OSC32_IN, 3.3V I/O for external 32 kHz crystal or LSCO clock output
9 PC15 bidirectional GPIO port C bit 15 or OSC32_OUT, 3.3V I/O for external 32 kHz crystal output
10 PF9 bidirectional GPIO port F bit 9, 5V tolerant I/O with alternate functions for TIM15_CH1, SPI2_SCK, EVENTOUT
11 PF10 bidirectional GPIO port F bit 10, 5V tolerant I/O with alternate functions for TIM15_CH2, SPI2_SCK, EVENTOUT
12 PF0 bidirectional GPIO port F bit 0 or OSC_IN, 5V tolerant FM+ I/O for external oscillator input or alternate functions TIM1_CH3N, I2C2_SDA
13 PF1 bidirectional GPIO port F bit 1 or OSC_OUT, 5V tolerant FM+ I/O for external oscillator output or alternate functions I2C2_SCL
14 NRST bidirectional Active-low device reset input with internal weak pull-up resistor and embedded reset output
15 PC0 bidirectional GPIO port C bit 0, ADC input capable, 3.3V I/O with alternate function for EVENTOUT and additional functions ADC12_IN6, COMP7_INM
16 PC1 bidirectional GPIO port C bit 1, ADC input capable, 3.3V I/O with alternate function for EVENTOUT and additional functions ADC12_IN7, COMP7_INP
17 PC2 bidirectional GPIO port C bit 2, ADC input capable, 3.3V I/O with alternate functions for COMP7_OUT, EVENTOUT and additional function ADC12_IN8
18 PC3 bidirectional GPIO port C bit 3, ADC input capable, 3.3V I/O with alternate functions for TIM1_BKIN2, EVENTOUT and additional function ADC12_IN9
19 PF2 bidirectional GPIO port F bit 2, ADC input capable, 3.3V I/O with alternate function for EVENTOUT and additional function ADC12_IN10
20 VSSA/VREF- power_in Analog ground and negative reference voltage for ADC/DAC, 0V reference
21 VREF+ power_in Positive reference voltage for ADC/DAC, 2.0-3.6V (LQFP100 only; internally connected to VDDA on smaller packages)
22 VDDA power_in Analog power supply, 2.0-3.6V
23 PA0 bidirectional GPIO port A bit 0, ADC input capable, 3.3V I/O with alternate functions for USART2_CTS, TIM2_CH1_ETR, TIM8_BKIN, TSC_G1_IO1, COMP1_OUT, EVENTOUT
24 PA1 bidirectional GPIO port A bit 1, ADC input capable, 3.3V I/O with alternate functions for USART2_RTS_DE, TIM2_CH2, TSC_G1_IO2, TIM15_CH1N, EVENTOUT
25 PA2 bidirectional GPIO port A bit 2, ADC input capable, 3.3V I/O with alternate functions for USART2_TX, TIM2_CH3, TIM15_CH1, TSC_G1_IO3, COMP2_OUT, EVENTOUT
26 PA3 bidirectional GPIO port A bit 3, ADC input capable, 3.3V I/O with alternate functions for USART2_RX, TIM2_CH4, TIM15_CH2, TSC_G1_IO4, EVENTOUT
27 PF4 bidirectional GPIO port F bit 4, ADC input capable, 3.3V I/O with alternate functions for COMP1_OUT, EVENTOUT and additional function ADC1_IN5
28 VDD power_in Digital power supply, 2.0-3.6V
29 PA4 bidirectional GPIO port A bit 4, ADC input capable, 3.3V I/O with alternate functions for SPI1_NSS, SPI3_NSS, I2S3_WS, USART2_CK, TSC_G2_IO1, TIM3_CH2, EVENTOUT
30 PA5 bidirectional GPIO port A bit 5, ADC input capable, 3.3V I/O with alternate functions for SPI1_SCK, TIM2_CH1_ETR, TSC_G2_IO2, EVENTOUT
31 PA6 bidirectional GPIO port A bit 6, ADC input capable, 3.3V I/O with alternate functions for SPI1_MISO, TIM3_CH1, TIM8_BKIN, TIM1_BKIN, TIM16_CH1, COMP1_OUT, TSC_G2_IO3, EVENTOUT
32 PA7 bidirectional GPIO port A bit 7, ADC input capable, 3.3V I/O with alternate functions for SPI1_MOSI, TIM3_CH2, TIM17_CH1, TIM1_CH1N, TIM8_CH1N, TSC_G2_IO4, COMP2_OUT, EVENTOUT
33 PC4 bidirectional GPIO port C bit 4, ADC input capable, 3.3V I/O with alternate functions for USART1_TX, EVENTOUT and additional function ADC2_IN5
34 PC5 bidirectional GPIO port C bit 5, ADC input capable, 3.3V I/O with alternate functions for USART1_RX, TSC_G3_IO1, EVENTOUT
35 PB0 bidirectional GPIO port B bit 0, ADC input capable, 3.3V I/O with alternate functions for TIM3_CH3, TIM1_CH2N, TIM8_CH2N, TSC_G3_IO2, EVENTOUT
36 PB1 bidirectional GPIO port B bit 1, ADC input capable, 3.3V I/O with alternate functions for TIM3_CH4, TIM1_CH3N, TIM8_CH3N, COMP4_OUT, TSC_G3_IO3, EVENTOUT
37 PB2 bidirectional GPIO port B bit 2, ADC input capable, 3.3V I/O with alternate functions for TSC_G3_IO4, EVENTOUT
38 PE7 bidirectional GPIO port E bit 7, ADC input capable, 3.3V I/O with alternate functions for TIM1_ETR, EVENTOUT
39 PE8 bidirectional GPIO port E bit 8, ADC input capable, 3.3V I/O with alternate functions for TIM1_CH1N, EVENTOUT
40 PE9 bidirectional GPIO port E bit 9, ADC input capable, 3.3V I/O with alternate functions for TIM1_CH1, EVENTOUT
41 PE10 bidirectional GPIO port E bit 10, ADC input capable, 3.3V I/O with alternate functions for TIM1_CH2N, EVENTOUT
42 PE11 bidirectional GPIO port E bit 11, ADC input capable, 3.3V I/O with alternate functions for TIM1_CH2, EVENTOUT
43 PE12 bidirectional GPIO port E bit 12, ADC input capable, 3.3V I/O with alternate functions for TIM1_CH3N, EVENTOUT
44 PE13 bidirectional GPIO port E bit 13, ADC input capable, 3.3V I/O with alternate functions for TIM1_CH3, EVENTOUT
45 PE14 bidirectional GPIO port E bit 14, ADC input capable, 3.3V I/O with alternate functions for TIM1_CH4, TIM1_BKIN2, EVENTOUT
46 PE15 bidirectional GPIO port E bit 15, ADC input capable, 3.3V I/O with alternate functions for USART3_RX, TIM1_BKIN, EVENTOUT
47 PB10 bidirectional GPIO port B bit 10, ADC input capable, 3.3V I/O with alternate functions for USART3_TX, TIM2_CH3, TSC_SYNC, EVENTOUT
48 PB11 bidirectional GPIO port B bit 11, ADC input capable, 3.3V I/O with alternate functions for USART3_RX, TIM2_CH4, TSC_G6_IO1, EVENTOUT
49 VSS power_in Digital ground, 0V reference
50 VDD power_in Digital power supply, 2.0-3.6V
51 PB12 bidirectional GPIO port B bit 12, ADC input capable, 3.3V I/O with alternate functions for SPI2_NSS, I2S2_WS, I2C2_SMBA, USART3_CK, TIM1_BKIN, TSC_G6_IO2, EVENTOUT
52 PB13 bidirectional GPIO port B bit 13, ADC input capable, 3.3V I/O with alternate functions for SPI2_SCK, I2S2_CK, USART3_CTS, TIM1_CH1N, TSC_G6_IO3, EVENTOUT
53 PB14 bidirectional GPIO port B bit 14, ADC input capable, 3.3V I/O with alternate functions for SPI2_MISO, I2S2ext_SD, USART3_RTS_DE, TIM1_CH2N, TIM15_CH1, TSC_G6_IO4, EVENTOUT
54 PB15 bidirectional GPIO port B bit 15, ADC input capable, 3.3V I/O with alternate functions for SPI2_MOSI, I2S2_SD, TIM1_CH3N, TIM15_CH1N, TIM15_CH2, EVENTOUT
55 PD8 bidirectional GPIO port D bit 8, ADC input capable, 3.3V I/O with alternate functions for USART3_TX, EVENTOUT
56 PD9 bidirectional GPIO port D bit 9, ADC input capable, 3.3V I/O with alternate functions for USART3_RX, EVENTOUT
57 PD10 bidirectional GPIO port D bit 10, ADC input capable, 3.3V I/O with alternate functions for USART3_CK, EVENTOUT
58 PD11 bidirectional GPIO port D bit 11, ADC input capable, 3.3V I/O with alternate functions for USART3_CTS, EVENTOUT
59 PD12 bidirectional GPIO port D bit 12, ADC input capable, 3.3V I/O with alternate functions for USART3_RTS_DE, TIM4_CH1, TSC_G8_IO1, EVENTOUT
60 PD13 bidirectional GPIO port D bit 13, ADC input capable, 3.3V I/O with alternate functions for TIM4_CH2, TSC_G8_IO2, EVENTOUT
61 PD14 bidirectional GPIO port D bit 14, ADC input capable, 3.3V I/O with alternate functions for TIM4_CH3, TSC_G8_IO3, EVENTOUT
62 PD15 bidirectional GPIO port D bit 15, ADC input capable, 3.3V I/O with alternate functions for SPI2_NSS, TIM4_CH4, TSC_G8_IO4, EVENTOUT
63 PC6 bidirectional GPIO port C bit 6, 5V tolerant I/O with alternate functions for I2S2_MCK, COMP6_OUT, TIM8_CH1, TIM3_CH1, EVENTOUT
64 PC7 bidirectional GPIO port C bit 7, 5V tolerant I/O with alternate functions for I2S3_MCK, TIM8_CH2, TIM3_CH2, COMP5_OUT, EVENTOUT
65 PC8 bidirectional GPIO port C bit 8, 5V tolerant I/O with alternate functions for TIM8_CH3, TIM3_CH3, COMP3_OUT, EVENTOUT
66 PC9 bidirectional GPIO port C bit 9, 5V tolerant I/O with alternate functions for TIM8_CH4, TIM8_BKIN2, TIM3_CH4, I2S_CKIN, EVENTOUT
67 PA8 bidirectional GPIO port A bit 8, 5V tolerant I/O with alternate functions for I2C2_SMBA, I2S2_MCK, USART1_CK, TIM1_CH1, TIM4_ETR, MCO, COMP3_OUT, EVENTOUT
68 PA9 bidirectional GPIO port A bit 9, 5V tolerant FM+ I/O with alternate functions for I2C2_SCL, I2S3_MCK, USART1_TX, TIM1_CH2, TIM2_CH3, TIM15_BKIN, TSC_G4_IO1, COMP5_OUT, EVENTOUT
69 PA10 bidirectional GPIO port A bit 10, 5V tolerant FM+ I/O with alternate functions for I2C2_SDA, USART1_RX, TIM1_CH3, TIM2_CH4, TIM8_BKIN, TIM17_BKIN, TSC_G4_IO2, COMP6_OUT, EVENTOUT
70 PA11 bidirectional GPIO port A bit 11, 5V tolerant I/O with alternate functions for USART1_CTS, USB_DM, CAN_RX, TIM1_CH1N, TIM1_CH4, TIM1_BKIN2, TIM4_CH1, COMP1_OUT, EVENTOUT
71 PA12 bidirectional GPIO port A bit 12, 5V tolerant I/O with alternate functions for USART1_RTS_DE, USB_DP, CAN_TX, TIM1_CH2N, TIM1_ETR, TIM4_CH2, TIM16_CH1, COMP2_OUT, EVENTOUT
72 PA13 bidirectional GPIO port A bit 13, 5V tolerant I/O with alternate functions for USART3_CTS, TIM4_CH3, TIM16_CH1N, TSC_G4_IO3, IR_OUT, SWDIO-JTMS debug port, EVENTOUT
73 PF6 bidirectional GPIO port F bit 6, 5V tolerant FM+ I/O with alternate functions for I2C2_SCL, USART3_RTS_DE, TIM4_CH4, EVENTOUT
74 VSS power_in Digital ground, 0V reference
75 VDD power_in Digital power supply, 2.0-3.6V
76 PA14 bidirectional GPIO port A bit 14, 5V tolerant FM+ I/O with alternate functions for I2C1_SDA, USART2_TX, TIM8_CH2, TIM1_BKIN, TSC_G4_IO4, SWCLK-JTCK debug port, EVENTOUT
77 PA15 bidirectional GPIO port A bit 15, 5V tolerant FM+ I/O with alternate functions for I2C1_SCL, SPI1_NSS, SPI3_NSS, I2S3_WS, JTDI, USART2_RX, TIM1_BKIN, TIM2_CH1_ETR, TIM8_CH1, EVENTOUT
78 PC10 bidirectional GPIO port C bit 10, 5V tolerant I/O with alternate functions for SPI3_SCK, I2S3_CK, USART3_TX, UART4_TX, TIM8_CH1N, EVENTOUT
79 PC11 bidirectional GPIO port C bit 11, 5V tolerant I/O with alternate functions for SPI3_MISO, I2S3ext_SD, USART3_RX, UART4_RX, TIM8_CH2N, EVENTOUT
80 PC12 bidirectional GPIO port C bit 12, 5V tolerant I/O with alternate functions for SPI3_MOSI, I2S3_SD, USART3_CK, UART5_TX, TIM8_CH3N, EVENTOUT
81 PD0 bidirectional GPIO port D bit 0, 5V tolerant I/O with alternate functions for CAN_RX, EVENTOUT
82 PD1 bidirectional GPIO port D bit 1, 5V tolerant I/O with alternate functions for CAN_TX, TIM8_CH4, TIM8_BKIN2, EVENTOUT
83 PD2 bidirectional GPIO port D bit 2, 5V tolerant I/O with alternate functions for UART5_RX, TIM3_ETR, TIM8_BKIN, EVENTOUT
84 PD3 bidirectional GPIO port D bit 3, 5V tolerant I/O with alternate functions for USART2_CTS, TIM2_CH1_ETR, EVENTOUT
85 PD4 bidirectional GPIO port D bit 4, 5V tolerant I/O with alternate functions for USART2_RTS_DE, TIM2_CH2, EVENTOUT
86 PD5 bidirectional GPIO port D bit 5, 5V tolerant I/O with alternate functions for USART2_TX, EVENTOUT
87 PD6 bidirectional GPIO port D bit 6, 5V tolerant I/O with alternate functions for USART2_RX, TIM2_CH4, EVENTOUT
88 PD7 bidirectional GPIO port D bit 7, 5V tolerant I/O with alternate functions for USART2_CK, TIM2_CH3, EVENTOUT
89 PB3 bidirectional GPIO port B bit 3, 5V tolerant I/O with alternate functions for SPI3_SCK, I2S3_CK, SPI1_SCK, USART2_TX, TIM2_CH2, TIM3_ETR, TIM4_ETR, TIM8_CH1N, TSC_G5_IO1, JTDO-TRACESWO, EVENTOUT
90 PB4 bidirectional GPIO port B bit 4, 5V tolerant I/O with alternate functions for SPI3_MISO, I2S3ext_SD, SPI1_MISO, USART2_RX, TIM3_CH1, TIM16_CH1, TIM17_BKIN, TIM8_CH2N, TSC_G5_IO2, NJTRST, EVENTOUT
91 PB5 bidirectional GPIO port B bit 5, 5V tolerant I/O with alternate functions for SPI3_MOSI, SPI1_MOSI, I2S3_SD, I2C1_SMBA, USART2_CK, TIM16_BKIN, TIM3_CH2, TIM8_CH3N, TIM17_CH1, EVENTOUT
92 PB6 bidirectional GPIO port B bit 6, 5V tolerant FM+ I/O with alternate functions for I2C1_SCL, USART1_TX, TIM16_CH1N, TIM4_CH1, TIM8_CH1, TSC_G5_IO3, TIM8_ETR, TIM8_BKIN2, EVENTOUT
93 PB7 bidirectional GPIO port B bit 7, 5V tolerant FM+ I/O with alternate functions for I2C1_SDA, USART1_RX, TIM3_CH4, TIM4_CH2, TIM17_CH1N, TIM8_BKIN, TSC_G5_IO4, EVENTOUT
94 BOOT0 input Boot memory selection input; pulled low with external resistor to select Flash boot, floating for ROM boot
95 PB8 bidirectional GPIO port B bit 8, 5V tolerant FM+ I/O with alternate functions for I2C1_SCL, CAN_RX, TIM16_CH1, TIM4_CH3, TIM8_CH2, TIM1_BKIN, TSC_SYNC, COMP1_OUT, EVENTOUT
96 PB9 bidirectional GPIO port B bit 9, 5V tolerant FM+ I/O with alternate functions for I2C1_SDA, CAN_TX, TIM17_CH1, TIM4_CH4, TIM8_CH3, IR_OUT, COMP2_OUT, EVENTOUT
97 PE0 bidirectional GPIO port E bit 0, 5V tolerant I/O with alternate functions for USART1_TX, TIM4_ETR, TIM16_CH1, EVENTOUT
98 PE1 bidirectional GPIO port E bit 1, 5V tolerant I/O with alternate functions for USART1_RX, TIM17_CH1, EVENTOUT
99 VSS power_in Digital ground, 0V reference
100 VDD power_in Digital power supply, 2.0-3.6V

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-100(14x14)
Category Embedded Processors & Controllers
Pins 100

CAD (KiCad official)

  • Symbol: STM32F303VCT6
  • Footprint: Package_QFP:LQFP-100_14x14mm_P0.5mm
  • 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
  • 3D model files: stm32f303vct6-etched.step / stm32f303vct6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32f303vct6.step / stm32f303vct6.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (148 pp, sha256 e7a65f330e8fc061, retrieved 2026-10-01, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF