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Contents

README

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STM32F373VCT6

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

STM32F373VCT6 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 3.3V tolerant I/O for touch sensing input TSC_G7_IO1, trace clock output TRACECLK.
2 PE3 bidirectional 3.3V tolerant I/O for touch sensing input TSC_G7_IO2, trace data output TRACED0.
3 PE4 bidirectional 3.3V tolerant I/O for touch sensing input TSC_G7_IO3, trace data output TRACED1.
4 PE5 bidirectional 3.3V tolerant I/O for touch sensing input TSC_G7_IO4, trace data output TRACED2.
5 PE6 bidirectional 3.3V tolerant I/O for trace data output TRACED3, wakeup input WKUP3, RTC tamper detection.
6 VBAT power_in Backup battery supply for RTC and backup registers when VDD is absent, 1.65 to 3.6 V.
7 PC13 bidirectional Standard 3.3V I/O for RTC functions and wakeup events, maximum output 2 MHz with 30 pF load.
8 PC14-OSC32_IN bidirectional Standard 3.3V I/O for OSC32_IN low-speed oscillator input for RTC clock.
9 PC15-OSC32_OUT bidirectional Standard 3.3V I/O for OSC32_OUT low-speed oscillator output for RTC clock.
10 PF9 bidirectional 5V tolerant I/O for timer TIM14 channel 1 output compare/PWM.
11 PF10 bidirectional 5V tolerant I/O without alternate function.
12 PF0-OSC_IN bidirectional 5V tolerant FM+ I2C open-drain I/O for I2C2 SDA with FM+ 1 MHz capability, also OSC_IN.
13 PF1-OSC_OUT bidirectional 5V tolerant FM+ I2C open-drain I/O for I2C2 SCL with FM+ 1 MHz capability, also OSC_OUT.
14 NRST input Bidirectional reset pin with internal weak pull-up resistor, active low, filtered by 100 ns.
15 PC0 bidirectional 3.3V tolerant ADC input pin for TIM5_CH1_ETR trigger and ADC_IN10 analog input.
16 PC1 bidirectional 3.3V tolerant ADC input pin for TIM5_CH2 trigger and ADC_IN11 analog input.
17 PC2 bidirectional 3.3V tolerant ADC input pin for SPI2 MISO/I2S2 MCK or TIM5_CH3, ADC_IN12 analog input.
18 PC3 bidirectional 3.3V tolerant ADC input pin for SPI2 MOSI/I2S2 SD or TIM5_CH4, ADC_IN13 analog input.
19 PF2 bidirectional 5V tolerant I2C open-drain I/O for I2C2 SMBus alert.
20 VSSA/VREF- power_in Analog ground and negative reference voltage for ADC/DAC, must be at VSS potential.
21 VDDA power_in Analog power supply 2.4 to 3.6 V for ADC, DAC, comparators; must power on ≥ VDD.
22 VREF+ power_in Positive reference voltage for 12-bit ADC, DAC and comparators, 2.4 to 3.6 V.
23 PA0 bidirectional 3.3V tolerant ADC input TSC touch sensing group 1 I/O, timer/USART alternate functions, ADC_IN0.
24 PA1 bidirectional 3.3V tolerant ADC input TSC touch sensing group 1 I/O, SPI3/USART2/timer alternates, ADC_IN1.
25 PA2 bidirectional 3.3V tolerant ADC input TSC touch sensing group 1 I/O, USART2/timer alternates, ADC_IN2.
26 PA3 bidirectional 3.3V tolerant ADC input TSC touch sensing group 1 I/O, USART2/timer alternates, ADC_IN3.
27 PF4 bidirectional 5V tolerant I/O without alternate function.
28 VDD power_in
29 PA4 bidirectional 3.3V tolerant ADC input TSC touch sensing group 2 I/O, SPI/timer/USART alternates, DAC1_OUT1, ADC_IN4.
30 PA5 bidirectional 3.3V tolerant ADC input TSC touch sensing group 2 I/O, SPI/timer alternates, DAC1_OUT2, ADC_IN5.
31 PA6 bidirectional 3.3V tolerant ADC input TSC touch sensing group 2 I/O, SPI/timer alternates, DAC2_OUT1, ADC_IN6.
32 PA7 bidirectional 3.3V tolerant ADC input TSC touch sensing group 2 I/O, SPI/timer alternates, ADC_IN7.
33 PC4 bidirectional 3.3V tolerant ADC input TSC touch sensing group 3 I/O, timer/USART alternates, ADC_IN14.
34 PC5 bidirectional 3.3V tolerant ADC input TSC touch sensing group 3 I/O, USART1 alternates, ADC_IN15.
35 PB0 bidirectional 3.3V tolerant ADC input TSC touch sensing group 3 I/O, timer/SPI alternates, ADC_IN8, SDADC1 input.
36 PB1 bidirectional 3.3V tolerant ADC input TSC touch sensing group 3 I/O, timer alternates, ADC_IN9, SDADC1 inputs.
37 PB2 bidirectional Standard 3.3V I/O powered by VDDSD12 for sigma-delta ADC analog inputs.
38 PE7 bidirectional Standard 3.3V I/O powered by VDDSD12 for sigma-delta ADC analog inputs.
39 PE8 bidirectional Standard 3.3V I/O powered by VDDSD12 for sigma-delta ADC1/2 analog inputs.
40 PE9 bidirectional Standard 3.3V I/O powered by VDDSD12 for sigma-delta ADC1/2 analog inputs.
41 PE10 bidirectional Standard 3.3V I/O powered by VDDSD12 for SDADC1 analog input.
42 PE11 bidirectional Standard 3.3V I/O powered by VDDSD12 for SDADC1/2 analog inputs.
43 PE12 bidirectional Standard 3.3V I/O powered by VDDSD12 for SDADC1/2 analog inputs.
44 PE13 bidirectional Standard 3.3V I/O powered by VDDSD12 for SDADC1/2 analog inputs.
45 PE14 bidirectional Standard 3.3V I/O powered by VDDSD12 for SDADC2 analog inputs.
46 PE15 bidirectional Standard 3.3V I/O powered by VDDSD12 for USART3_RX or SDADC2 analog input.
47 PB10 bidirectional Standard 3.3V I/O powered by VDDSD12 for SPI2/CEC/TSC alternates, SDADC2 input.
48 VREFSD- power_in Sigma-delta ADC negative reference voltage, must equal or be below VSSA.
49 VSSSD power_in Sigma-delta ADC ground connection for SDADC1/2/3.
50 VDDSD12 power_in Sigma-delta ADC1/2 power supply 2.2 to 3.6 V, independent from VDD.
51 VDDSD3 power_in Sigma-delta ADC3 power supply 2.2 to 3.6 V, independent from VDD.
52 VREFSD+ power_in Sigma-delta ADC positive reference voltage, 1.1 to VDDSD3, with external 1-10 µF capacitor.
53 PB14 bidirectional Standard 3.3V I/O powered by VDDSD3 for SPI2/timer/USART/TSC alternates, SDADC3 input.
54 PB15 bidirectional Standard 3.3V I/O powered by VDDSD3 for SPI2/timer/USART/RTC alternates, SDADC3 inputs.
55 PD8 bidirectional Standard 3.3V I/O powered by VDDSD3 for SPI2/USART3/TSC alternates, SDADC3_AIN6P input.
56 PD9 bidirectional Standard 3.3V I/O powered by VDDSD3 for USART3/TSC alternates, SDADC3 inputs.
57 PD10 bidirectional Standard 3.3V I/O powered by VDDSD3 for USART3 clock, SDADC3_AIN4P input.
58 PD11 bidirectional Standard 3.3V I/O powered by VDDSD3 for USART3 CTS, SDADC3 inputs.
59 PD12 bidirectional Standard 3.3V I/O powered by VDDSD3 for USART3/timer/TSC alternates, SDADC3 input.
60 PD13 bidirectional Standard 3.3V I/O powered by VDDSD3 for timer/TSC alternates, SDADC3 inputs.
61 PD14 bidirectional Standard 3.3V I/O powered by VDDSD3 for timer/TSC alternates, SDADC3_AIN0P input.
62 PD15 bidirectional Standard 3.3V I/O powered by VDDSD3 for timer/TSC alternates, SDADC3_AIN0M input.
63 PC6 bidirectional 5V tolerant I/O for timer/SPI alternates without additional function.
64 PC7 bidirectional 5V tolerant I/O for timer/SPI alternates without additional function.
65 PC8 bidirectional 5V tolerant I/O for SPI1/timer alternates without additional function.
66 PC9 bidirectional 5V tolerant I/O for SPI1/timer alternates without additional function.
67 PA8 bidirectional 5V tolerant I/O for SPI2/I2C/USART/timer alternates, MCO clock output.
68 PA9 bidirectional 5V tolerant FM+ I/O for SPI2/I2C/USART/timer/TSC alternates, 1 MHz I2C capability.
69 PA10 bidirectional 5V tolerant FM+ I/O for SPI2/I2C/USART/timer/TSC alternates, 1 MHz I2C capability.
70 PA11 bidirectional 5V tolerant I/O for SPI/USART/CAN/USB/timer alternates, COMP1_OUT.
71 PA12 bidirectional 5V tolerant I/O for SPI/USART/CAN/USB/timer alternates, COMP2_OUT.
72 PA13 bidirectional 5V tolerant I/O for SPI/USART/timer/TSC/IR/JTAG alternates, SWDIO debug pin.
73 PF6 bidirectional 5V tolerant FM+ I/O for SPI1/I2C/USART/timer alternates, 1 MHz I2C capability.
74 VSS power_in
75 VDD power_in
76 PA14 bidirectional 5V tolerant FM+ I/O for I2C/timer/TSC/JTAG alternates, SWCLK debug pin.
77 PA15 bidirectional 5V tolerant FM+ I/O for SPI/I2C/timer/TSC/JTAG alternates.
78 PC10 bidirectional 5V tolerant I/O for SPI3/USART3/timer alternates without additional function.
79 PC11 bidirectional 5V tolerant I/O for SPI3/USART3/timer alternates without additional function.
80 PC12 bidirectional 5V tolerant I/O for SPI3/USART3/timer alternates without additional function.
81 PD0 bidirectional 5V tolerant I/O for CAN/timer alternates without additional function.
82 PD1 bidirectional 5V tolerant I/O for CAN/timer alternates without additional function.
83 PD2 bidirectional 5V tolerant I/O for timer external trigger alternate function.
84 PD3 bidirectional 5V tolerant I/O for SPI2/USART2 alternates without additional function.
85 PD4 bidirectional 5V tolerant I/O for SPI2/USART2 alternates without additional function.
86 PD5 bidirectional 5V tolerant I/O for USART2 transmit alternate function.
87 PD6 bidirectional 5V tolerant I/O for SPI2/USART2 alternates without additional function.
88 PD7 bidirectional 5V tolerant I/O for SPI2/USART2 alternates without additional function.
89 PB3 bidirectional 5V tolerant I/O for SPI/USART/timer/TSC/JTAG alternates, JTDO-TRACESWO output.
90 PB4 bidirectional 5V tolerant I/O for SPI/timer/TSC/JTAG alternates, NJTRST debug input.
91 PB5 bidirectional 5V tolerant I/O for SPI/I2C/USART/timer/TSC alternates without additional function.
92 PB6 bidirectional 5V tolerant FM+ I/O for I2C/USART/timer/TSC alternates, 1 MHz I2C capability.
93 PB7 bidirectional 5V tolerant FM+ I/O for I2C/USART/timer/TSC alternates, 1 MHz I2C capability.
94 BOOT0 input Boot mode selection pin, selects boot from flash memory, system memory, or SRAM.
95 PB8 bidirectional 5V tolerant FM+ I/O for SPI/I2C/USART/CAN/CEC/timer/TSC alternates, COMP1_OUT.
96 PB9 bidirectional 5V tolerant FM+ I/O for SPI/I2C/USART/CAN/timer alternates, COMP2_OUT.
97 PE0 bidirectional 5V tolerant I/O for USART1/timer alternates without additional function.
98 PE1 bidirectional 5V tolerant I/O for USART1 receive alternate function.
99 VSS power_in
100 VDD power_in

Key specifications

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

CAD (KiCad official)

  • Symbol: STM32F373VCT6
  • Footprint: Package_QFP:LQFP-100_14x14mm_P0.5mm
  • 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
  • 3D model files: stm32f373vct6-etched.step / stm32f373vct6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32f373vct6.step / stm32f373vct6.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (137 pp, sha256 fd00ebf096b21764, retrieved 2026-09-29, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF