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STM32F303VBT6

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STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-100(14x14). Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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STM32F303VBT6

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

STM32F303VBT6 from STMicroelectronics, in a LQFP-100(14x14). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 PE2 bidirectional General-purpose I/O port with 5V tolerance; supports trace clock, timer 3 channel 1 input, touch sensing group 7 I/O 1, and event output alternate functions.
2 PE3 bidirectional General-purpose I/O port with 5V tolerance; supports trace data 0, timer 3 channel 2 input, touch sensing group 7 I/O 2, and event output alternate functions.
3 PE4 bidirectional General-purpose I/O port with 5V tolerance; supports trace data 1, timer 3 channel 3 input, touch sensing group 7 I/O 3, and event output alternate functions.
4 PE5 bidirectional General-purpose I/O port with 5V tolerance; supports trace data 2, timer 3 channel 4 input, touch sensing group 7 I/O 4, and event output alternate functions.
5 PE6 bidirectional General-purpose I/O port with 5V tolerance; supports trace data 3 and event output alternate functions; also provides RTC tamper 3 and wakeup 3 functions.
6 VBAT power_in Backup power supply input for RTC and backup registers; voltage range 1.65 to 3.6 V.
7 PC13 bidirectional General-purpose I/O port with standard 3.3V tolerance; supports timer 1 complementary channel 1N alternate function; provides RTC tamper 1, timestamp, and wakeup 2 additional functions.
8 PC14/OSC32_IN bidirectional 32.768 kHz oscillator input / general-purpose I/O port with standard 3.3V tolerance; supplies external low-speed clock to RTC.
9 PC15/OSC32_OUT bidirectional 32.768 kHz oscillator output / general-purpose I/O port with standard 3.3V tolerance; provides feedback path for RTC oscillator.
10 PF9 bidirectional General-purpose I/O port with 5V tolerance; supports timer 15 channel 1 input and SPI2 clock alternate functions.
11 PF10 bidirectional General-purpose I/O port with 5V tolerance; supports timer 15 channel 2 input and SPI2 clock alternate functions.
12 PF0/OSC_IN bidirectional 4 to 32 MHz oscillator input / general-purpose I/O port with 5V tolerance FM+ capable; supplies external high-speed clock to PLL and system.
13 PF1/OSC_OUT bidirectional Oscillator feedback output / general-purpose I/O port with 5V tolerance FM+ capable; provides feedback path for HSE oscillator.
14 NRST bidirectional Device reset input with internal pull-up; active low external reset and internal reset output for power-on and power-down reset functions.
15 PC0 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports ADC 1/2 channel 6 input and comparator 7 inverting input additional functions.
16 PC1 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports ADC 1/2 channel 7 input and comparator 7 non-inverting input additional functions.
17 PC2 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports comparator 7 output and ADC 1/2 channel 8 input additional functions.
18 PC3 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 1 break input 2, event output, and ADC 1/2 channel 9 input alternate and additional functions.
19 PF2 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports ADC 1 channel 10 input additional function.
20 VSSA/VREF- power_in Analog ground and negative reference voltage for ADC; must be connected to VSS or below.
21 VREF+ power_in Positive reference voltage for ADC; range VREF+ ≤ VDDA, typically 2.0 to 3.6 V.
22 VDDA power_in Analog power supply input for ADC, comparators, and operational amplifiers; range 2.0 to 3.6 V, must be ≥ VDD.
23 PA0 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 2 clear to send, timer input triggers, comparator output, and ADC 1 channel 1 input alternate and additional functions.
24 PA1 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 2 RTS/driver enable, timer 2 channel 2 input, timer 15 complementary channel 1, comparator input, and ADC 1 channel 2 input alternate and additional functions.
25 PA2 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 2 transmit, timer 2 channel 3 input, timer 15 channel 1 input, comparator output, and ADC 1 channel 3 input alternate and additional functions.
26 PA3 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 2 receive, timer 2 channel 4 input, timer 15 channel 2 input, and ADC 1 channel 4 input alternate and additional functions.
27 PF4 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports comparator 1 output and ADC 1 channel 5 input alternate and additional functions.
28 VDD power_in Digital power supply input for core and I/O logic; voltage range 2.0 to 3.6 V.
29 PA4 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports SPI 1/3 slave select, I2S 3 word select, USART 2 clock, timer 3 channel 2 input, and DAC 1 channel 1 output alternate and additional functions.
30 PA5 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports SPI 1 clock, timer 2 external trigger, and DAC 1 channel 2 output alternate and additional functions.
31 PA6 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports SPI 1 MISO, timer 3 channel 1 input, timer 1/8/16 control inputs, comparator output, and ADC 2 channel 3 input alternate and additional functions.
32 PA7 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports SPI 1 MOSI, timer 3 channel 2 input, timer 1/8/17 control outputs, comparator input/output, and ADC 2 channel 4 input alternate and additional functions.
33 PC4 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 1 transmit and ADC 2 channel 5 input alternate and additional functions.
34 PC5 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 1 receive, touch sensing group 3 I/O 1, and ADC 2 channel 11 input alternate and additional functions.
35 PB0 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 3 channel 3 input, timer 1/8 complementary channel 2, and ADC 3 channel 12 input alternate and additional functions.
36 PB1 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 3 channel 4 input, timer 1/8 complementary channel 3, comparator output, and ADC 3 channel 1 input alternate and additional functions.
37 PB2 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports touch sensing group 3 I/O 4 and ADC 2 channel 12 input alternate and additional functions.
38 PE7 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 1 external trigger input and ADC 3 channel 13 input alternate and additional functions.
39 PE8 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 1 complementary channel 1 and ADC 3/4 channel 6 input alternate and additional functions.
40 PE9 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 1 channel 1 input and ADC 3 channel 2 input alternate and additional functions.
41 PE10 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 1 complementary channel 2 and ADC 3 channel 14 input alternate and additional functions.
42 PE11 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 1 channel 2 input and ADC 3 channel 15 input alternate and additional functions.
43 PE12 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 1 complementary channel 3 and ADC 3 channel 16 input alternate and additional functions.
44 PE13 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 1 channel 3 input and ADC 3 channel 3 input alternate and additional functions.
45 PE14 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 1 channel 4 input, timer 1 break input 2, and ADC 4 channel 1 input alternate and additional functions.
46 PE15 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 3 receive, timer 1 break input, and ADC 4 channel 2 input alternate and additional functions.
47 PB10 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 3 transmit, timer 2 channel 3 input, and touch sensing synchronization alternate functions.
48 PB11 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 3 receive, timer 2 channel 4 input, and touch sensing group 6 I/O 1 alternate functions.
49 VSS power_in Digital ground connection; reference point for all digital logic and power supply voltages.
50 VDD power_in Digital power supply input for core and I/O logic; voltage range 2.0 to 3.6 V.
51 PB12 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports SPI 2 slave select, I2S 2 word select, I2C 2 SMBus alert, USART 3 clock, timer 1 break input, and ADC 4 channel 3 input alternate and additional functions.
52 PB13 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports SPI 2 clock, I2S 2 clock, USART 3 clear to send, timer 1 complementary channel 1, touch sensing group 6 I/O 3, and ADC 3 channel 5 input alternate and additional functions.
53 PB14 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports SPI 2 MISO, I2S 2 extended SD, USART 3 RTS/driver enable, timer 1 complementary channel 2, timer 15 channel 1, and ADC 4 channel 4 input alternate and additional functions.
54 PB15 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports SPI 2 MOSI, I2S 2 serial data, timer 1 complementary channel 3, timer 15 channels 1 and 2, and ADC 4 channel 5 input alternate and additional functions.
55 PD8 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 3 transmit and ADC 4 channel 12 input alternate and additional functions.
56 PD9 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 3 receive and ADC 4 channel 13 input alternate and additional functions.
57 PD10 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 3 clock and ADC 3/4 channel 7 input alternate and additional functions.
58 PD11 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 3 clear to send, comparator 6 non-inverting input, and ADC 3/4 channel 8 input alternate and additional functions.
59 PD12 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports USART 3 RTS/driver enable, timer 4 channel 1 input, touch sensing group 8 I/O 1, and ADC 3/4 channel 9 input alternate and additional functions.
60 PD13 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 4 channel 2 input, touch sensing group 8 I/O 2, and ADC 3/4 channel 10 input alternate and additional functions.
61 PD14 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports timer 4 channel 3 input, touch sensing group 8 I/O 3, and ADC 3/4 channel 11 input alternate and additional functions.
62 PD15 bidirectional General-purpose I/O port with 3.3V ADC tolerance; supports SPI 2 slave select, timer 4 channel 4 input, and touch sensing group 8 I/O 4 alternate functions.
63 PC6 bidirectional General-purpose I/O port with 5V tolerance; supports I2S 2 master clock, comparator 6 output, timer 8 channel 1 input, and timer 3 channel 1 input alternate functions.
64 PC7 bidirectional General-purpose I/O port with 5V tolerance; supports I2S 3 master clock, timer 8 channel 2 input, comparator 5 output, and timer 3 channel 2 input alternate functions.
65 PC8 bidirectional General-purpose I/O port with 5V tolerance; supports timer 8 channel 3 input, comparator 3 output, and timer 3 channel 3 input alternate functions.
66 PC9 bidirectional General-purpose I/O port with 5V tolerance; supports timer 8 channel 4 input, timer 8 break input 2, I2S master clock input, and timer 3 channel 4 input alternate functions.
67 PA8 bidirectional General-purpose I/O port with 5V tolerance; supports I2C 2 SMBus alert, I2S 2 master clock, USART 1 clock, timer 1 channel 1 input, timer 4 external trigger, main clock output, and comparator 3 output alternate functions.
68 PA9 bidirectional General-purpose I/O port with 5V tolerance and FM+ capable; supports I2C 2 serial clock, I2S 3 master clock, USART 1 transmit, timer 1 channel 2 input, timer 2 channel 3 input, timer 15 break input, comparator 5 output alternate functions.
69 PA10 bidirectional General-purpose I/O port with 5V tolerance and FM+ capable; supports I2C 2 serial data, USART 1 receive, timer 1 channel 3 input, timer 2 channel 4 input, timer 8/17 break input, comparator 6 output alternate functions.
70 PA11 bidirectional General-purpose I/O port with 5V tolerance; supports USART 1 clear to send, USB device minus line, CAN receive, timer 1 channels 1N/4, timer 1 break input 2, timer 4 channel 1, and comparator 1 output alternate functions.
71 PA12 bidirectional General-purpose I/O port with 5V tolerance; supports USART 1 RTS/driver enable, USB device plus line, CAN transmit, timer 1 complementary channel 2, timer 1 external trigger, timer 4 channel 2, timer 16 channel 1, and comparator 2 output alternate functions.
72 PA13 bidirectional General-purpose I/O port with 5V tolerance; supports USART 3 clear to send, timer 4 channel 3 input, timer 16 complementary channel 1, infrared output, and SWDIO-JTAG TMS alternate functions.
73 PF6 bidirectional General-purpose I/O port with 5V tolerance and FM+ capable; supports I2C 2 serial clock, USART 3 RTS/driver enable, and timer 4 channel 4 input alternate functions.
74 VSS power_in Digital ground connection; reference point for all digital logic and power supply voltages.
75 VDD power_in Digital power supply input for core and I/O logic; voltage range 2.0 to 3.6 V.
76 PA14 bidirectional General-purpose I/O port with 5V tolerance and FM+ capable; supports I2C 1 serial data, USART 2 transmit, timer 8 channel 2 input, timer 1 break input, and SWCLK-JTAG TCK alternate functions.
77 PA15 bidirectional General-purpose I/O port with 5V tolerance and FM+ capable; supports I2C 1 serial clock, SPI 1/3 slave select, I2S 3 word select, JTDI, USART 2 receive, timer 1 break input, and timer 2 external trigger alternate functions.
78 PC10 bidirectional General-purpose I/O port with 5V tolerance; supports SPI 3 clock, I2S 3 clock, USART 3 transmit, UART 4 transmit, and timer 8 complementary channel 1 alternate functions.
79 PC11 bidirectional General-purpose I/O port with 5V tolerance; supports SPI 3 MISO, I2S 3 extended SD, USART 3 receive, UART 4 receive, and timer 8 complementary channel 2 alternate functions.
80 PC12 bidirectional General-purpose I/O port with 5V tolerance; supports SPI 3 MOSI, I2S 3 serial data, USART 3 clock, UART 5 transmit, and timer 8 complementary channel 3 alternate functions.
81 PD0 bidirectional General-purpose I/O port with 5V tolerance; supports CAN receive alternate function.
82 PD1 bidirectional General-purpose I/O port with 5V tolerance; supports CAN transmit, timer 8 channel 4 input, and timer 8 break input 2 alternate functions.
83 PD2 bidirectional General-purpose I/O port with 5V tolerance; supports UART 5 receive, timer 3 external trigger, and timer 8 break input alternate functions.
84 PD3 bidirectional General-purpose I/O port with 5V tolerance; supports USART 2 clear to send and timer 2 external trigger alternate functions.
85 PD4 bidirectional General-purpose I/O port with 5V tolerance; supports USART 2 RTS/driver enable and timer 2 channel 2 input alternate functions.
86 PD5 bidirectional General-purpose I/O port with 5V tolerance; supports USART 2 transmit alternate function.
87 PD6 bidirectional General-purpose I/O port with 5V tolerance; supports USART 2 receive and timer 2 channel 4 input alternate functions.
88 PD7 bidirectional General-purpose I/O port with 5V tolerance; supports USART 2 clock and timer 2 channel 3 input alternate functions.
89 PB3 bidirectional General-purpose I/O port with 5V tolerance; supports SPI 3 clock, I2S 3 clock, SPI 1 clock, USART 2 transmit, timer 2/3/4 control inputs, timer 8 complementary channel 1, touch sensing group 5 I/O 1, and JTDO-TRACE SWO alternate functions.
90 PB4 bidirectional General-purpose I/O port with 5V tolerance; supports SPI 3 MISO, I2S 3 extended SD, SPI 1 MISO, USART 2 receive, timer 3 channel 1 input, timer 16 channel 1, timer 17 break input, timer 8 complementary channel 2, touch sensing group 5 I/O 2, and NJTRST alternate functions.
91 PB5 bidirectional General-purpose I/O port with 5V tolerance; supports SPI 3 MOSI, SPI 1 MOSI, I2S 3 serial data, I2C 1 SMBus alert, USART 2 clock, timer 16 break input, timer 3 channel 2 input, timer 8 complementary channel 3, and timer 17 channel 1 alternate functions.
92 PB6 bidirectional General-purpose I/O port with 5V tolerance and FM+ capable; supports I2C 1 serial clock, USART 1 transmit, timer 16 complementary channel 1, timer 4 channel 1 input, timer 8 channel 1 input, timer 8 external trigger, timer 8 break input 2 alternate functions.
93 PB7 bidirectional General-purpose I/O port with 5V tolerance and FM+ capable; supports I2C 1 serial data, USART 1 receive, timer 3 channel 4 input, timer 4 channel 2 input, timer 17 complementary channel 1, and timer 8 break input alternate functions.
94 BOOT0 input Boot mode selection input pin; determines whether device boots from Flash memory (low) or system memory (high); voltage range 0 to 5.5 V.
95 PB8 bidirectional General-purpose I/O port with 5V tolerance and FM+ capable; supports I2C 1 serial clock, CAN receive, timer 16 channel 1 input, timer 4 channel 3 input, timer 8 channel 2 input, timer 1 break input, touch sensing synchronization, and comparator 1 output alternate functions.
96 PB9 bidirectional General-purpose I/O port with 5V tolerance and FM+ capable; supports I2C 1 serial data, CAN transmit, timer 17 channel 1 input, timer 4 channel 4 input, timer 8 channel 3 input, infrared output, and comparator 2 output alternate functions.
97 PE0 bidirectional General-purpose I/O port with 5V tolerance; supports USART 1 transmit, timer 4 external trigger, and timer 16 channel 1 input alternate functions.
98 PE1 bidirectional General-purpose I/O port with 5V tolerance; supports USART 1 receive and timer 17 channel 1 input alternate functions.
99 VSS power_in Digital ground connection; reference point for all digital logic and power supply voltages.
100 VDD power_in Digital power supply input for core and I/O logic; voltage range 2.0 to 3.6 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: STM32F303VBT6
  • Footprint: Package_QFP:LQFP-100_14x14mm_P0.5mm
  • 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
  • 3D model files: stm32f303vbt6-etched.step / stm32f303vbt6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32f303vbt6.step / stm32f303vbt6.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (149 pp, sha256 46c415ce4e7e8ebd, retrieved 2026-09-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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