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STM32F303RCT6

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STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.

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STM32F303RCT6

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)

STM32F303RCT6 from STMicroelectronics, in a LQFP-64(10x10). 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 VBAT power_in Backup power supply for RTC and backup registers, 2.0-3.6 V
2 PC13 bidirectional General purpose I/O port C pin 13, configurable as TIM1_CH1N with RTC wakeup and tamper functions
3 PC14 bidirectional 32 kHz oscillator input pin (OSC32_IN)
4 PC15 bidirectional 32 kHz oscillator output pin (OSC32_OUT)
5 PF0 bidirectional General purpose I/O port F pin 0 with 5V tolerant FM+ I2C or main oscillator input capability
6 PF1 bidirectional General purpose I/O port F pin 1 with 5V tolerant FM+ I2C or main oscillator output capability
7 NRST bidirectional Device reset input and internal reset output (active low) with embedded weak pull-up resistor
8 PC0 bidirectional General purpose I/O port C pin 0, ADC12_IN6 analog input and COMP7_INM comparator function
9 PC1 bidirectional General purpose I/O port C pin 1, ADC12_IN7 analog input and COMP7_INP comparator function
10 PC2 bidirectional General purpose I/O port C pin 2, ADC12_IN8 analog input and COMP7_OUT comparator output
11 PC3 bidirectional General purpose I/O port C pin 3, ADC12_IN9 analog input and TIM1_BKIN2 timer function
12 VSSA/VREF- power_in Analog ground and negative reference voltage for ADC, 0 V minimum
13 VDDA/VREF+ power_in Analog power supply and positive reference voltage for ADC, 2.0-3.6 V
14 PA0 bidirectional General purpose I/O port A pin 0, ADC1_IN1 analog input with USART2_CTS and timer functions
15 PA1 bidirectional General purpose I/O port A pin 1, ADC1_IN2 analog input with USART2_RTS and timer functions
16 PA2 bidirectional General purpose I/O port A pin 2, ADC1_IN3 analog input with USART2_TX and OPAMP1_VOUT functions
17 PA3 bidirectional General purpose I/O port A pin 3, ADC1_IN4 analog input with USART2_RX and timer functions
18 PF4 bidirectional General purpose I/O port F pin 4, ADC1_IN5 analog input with comparator output function
19 VDD power_in Main digital power supply, 2.0-3.6 V
20 PA4 bidirectional General purpose I/O port A pin 4, ADC2_IN1 analog input with SPI1_NSS and DAC1_OUT1 functions
21 PA5 bidirectional General purpose I/O port A pin 5, ADC2_IN2 analog input with SPI1_SCK and DAC1_OUT2 functions
22 PA6 bidirectional General purpose I/O port A pin 6, ADC2_IN3 analog input with SPI1_MISO and OPAMP2_VOUT functions
23 PA7 bidirectional General purpose I/O port A pin 7, ADC2_IN4 analog input with SPI1_MOSI and timer functions
24 PC4 bidirectional General purpose I/O port C pin 4, ADC2_IN5 analog input with USART1_TX function
25 PC5 bidirectional General purpose I/O port C pin 5, ADC2_IN11 analog input with USART1_RX and OPAMP functions
26 PB0 bidirectional General purpose I/O port B pin 0, ADC3_IN12 analog input with timer and comparator functions
27 PB1 bidirectional General purpose I/O port B pin 1, ADC3_IN1 analog input with timer and OPAMP3_VOUT functions
28 PB2 bidirectional General purpose I/O port B pin 2, ADC2_IN12 analog input with touch sensing and OPAMP functions
29 PB10 bidirectional General purpose I/O port B pin 10 with USART3_TX and touch sensing synchronization function
30 PB11 bidirectional General purpose I/O port B pin 11 with USART3_RX and touch sensing group IO function
31 VSS power_in Digital ground reference, 0 V
32 VDD power_in Main digital power supply, 2.0-3.6 V
33 PB12 bidirectional General purpose I/O port B pin 12, ADC4_IN3 analog input with SPI2_NSS and I2C2_SMBA functions
34 PB13 bidirectional General purpose I/O port B pin 13, ADC3_IN5 analog input with SPI2_SCK and timer functions
35 PB14 bidirectional General purpose I/O port B pin 14, ADC4_IN4 analog input with SPI2_MISO and timer functions
36 PB15 bidirectional General purpose I/O port B pin 15, ADC4_IN5 analog input with SPI2_MOSI and timer functions
37 PC6 bidirectional General purpose I/O port C pin 6 with I2S2_MCK and timer functions
38 PC7 bidirectional General purpose I/O port C pin 7 with I2S3_MCK and timer functions
39 PC8 bidirectional General purpose I/O port C pin 8 with timer and comparator output functions
40 PC9 bidirectional General purpose I/O port C pin 9 with timer and I2S clock input functions
41 PA8 bidirectional General purpose I/O port A pin 8 with I2C2_SMBA, I2S2_MCK and timer functions
42 PA9 bidirectional General purpose I/O port A pin 9 with I2C2_SCL, I2S3_MCK, USART1_TX and timer functions
43 PA10 bidirectional General purpose I/O port A pin 10 with I2C2_SDA, USART1_RX and timer functions
44 PA11 bidirectional General purpose I/O port A pin 11 with USB_DM, CAN_RX and timer functions
45 PA12 bidirectional General purpose I/O port A pin 12 with USB_DP, CAN_TX and timer functions
46 PA13 bidirectional General purpose I/O port A pin 13 with SWDIO-JTMS debug and IR_OUT infrared transmitter function
47 VSS power_in Digital ground reference, 0 V
48 VDD power_in Main digital power supply, 2.0-3.6 V
49 PA14 bidirectional General purpose I/O port A pin 14 with SWCLK-JTCK debug and timer functions
50 PA15 bidirectional General purpose I/O port A pin 15 with JTDI debug, SPI and timer functions
51 PC10 bidirectional General purpose I/O port C pin 10 with SPI3_SCK, I2S3_CK and USART3_TX functions
52 PC11 bidirectional General purpose I/O port C pin 11 with SPI3_MISO, I2S3_SD and USART3_RX functions
53 PC12 bidirectional General purpose I/O port C pin 12 with SPI3_MOSI, I2S3_SD and USART3_CK functions
54 PD2 bidirectional General purpose I/O port D pin 2 with UART5_RX and timer functions
55 PB3 bidirectional General purpose I/O port B pin 3 with SPI1_SCK, SPI3_SCK, JTDO-TRACESWO and timer functions
56 PB4 bidirectional General purpose I/O port B pin 4 with SPI1_MISO, SPI3_MISO and timer functions
57 PB5 bidirectional General purpose I/O port B pin 5 with SPI1_MOSI, SPI3_MOSI, I2C1_SMBA and timer functions
58 PB6 bidirectional General purpose I/O port B pin 6 with I2C1_SCL, USART1_TX and timer functions
59 PB7 bidirectional General purpose I/O port B pin 7 with I2C1_SDA, USART1_RX and timer functions
60 BOOT0 input Boot memory selection pin for selecting execution from Flash memory or system memory
61 PB8 bidirectional General purpose I/O port B pin 8 with I2C1_SCL, CAN_RX and timer functions
62 PB9 bidirectional General purpose I/O port B pin 9 with I2C1_SDA, CAN_TX, IR_OUT and timer functions
63 VSS power_in Digital ground reference, 0 V
64 VDD power_in Main digital power supply, 2.0-3.6 V

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-64(10x10)
Category Embedded Processors & Controllers
Pins 64

CAD (KiCad official)

  • Symbol: STM32F303RCT6
  • Footprint: Package_QFP:LQFP-64_10x10mm_P0.5mm
  • 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: stm32f303rct6-etched.step / stm32f303rct6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32f303rct6.step / stm32f303rct6.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