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STM32F446VET6TR
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-100(14x14). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSTM32F446VET6TR
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-100(14x14)
STM32F446VET6TR 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 | Port E pin 2 general purpose I/O, 5V tolerant input/output with alternate functions for TRACECLK, SPI4_SCK, SAI1_MCLK_A, QUADSPI_BK1_IO2, FMC_A23. |
| 2 | PE3 | bidirectional | Port E pin 3 general purpose I/O, 5V tolerant input/output with alternate functions for TRACED0, SAI1_SD_B, FMC_A19. |
| 3 | PE4 | bidirectional | Port E pin 4 general purpose I/O, 5V tolerant input/output with alternate functions for TRACED1, SPI4_NSS, SAI1_FS_A, FMC_A20, DCMI_D4. |
| 4 | PE5 | bidirectional | Port E pin 5 general purpose I/O, 5V tolerant input/output with alternate functions for TRACED2, TIM9_CH1, SPI4_MISO, SAI1_SCK_A, FMC_A21, DCMI_D6. |
| 5 | PE6 | bidirectional | Port E pin 6 general purpose I/O, 5V tolerant input/output with alternate functions for TRACED3, TIM9_CH2, SPI4_MOSI, SAI1_SD_A, FMC_A22, DCMI_D7. |
| 6 | VBAT | power_in | Backup battery power supply pin, 1.7 V to 3.6 V operating range, enables RTC and backup registers in standby mode. |
| 7 | PC13 | bidirectional | Port C pin 13 general purpose I/O, 5V tolerant input/output with alternate function TAMP_1/WKUP1. |
| 8 | PC14-OSC32_IN | bidirectional | Port C pin 14 general purpose I/O or 32 kHz oscillator input, 5V tolerant, for RTC low-speed external clock. |
| 9 | PC15-OSC32_OUT | bidirectional | Port C pin 15 general purpose I/O or 32 kHz oscillator output, 5V tolerant, for RTC low-speed external clock. |
| 10 | VSS | power_in | Ground connection, reference potential 0V. |
| 11 | VDD | power_in | Main power supply pin, 1.7 V to 3.6 V operating range. |
| 12 | PH0-OSC_IN | bidirectional | Port H pin 0 general purpose I/O or main oscillator input, 5V tolerant, for 4 to 26 MHz crystal. |
| 13 | PH1-OSC_OUT | bidirectional | Port H pin 1 general purpose I/O or main oscillator output, 5V tolerant, for 4 to 26 MHz crystal. |
| 14 | NRST | bidirectional | Reset pin with weak internal pull-up resistor, triggers system reset on low input, active low. |
| 15 | PC0 | bidirectional | Port C pin 0 general purpose I/O, 5V tolerant input/output with ADC123_IN10 and alternate functions for SAI1_MCLK_B, OTG_HS_ULPI_STP, FMC_SDNWE. |
| 16 | PC1 | bidirectional | Port C pin 1 general purpose I/O, 5V tolerant input/output with ADC123_IN11 and alternate functions for SPI3_MOSI/I2S3_SD, SAI1_SD_A, SPI2_MOSI/I2S2_SD. |
| 17 | PC2 | bidirectional | Port C pin 2 general purpose I/O, 5V tolerant input/output with ADC123_IN12 and alternate functions for SPI2_MISO, OTG_HS_ULPI_DIR, FMC_SDNE0. |
| 18 | PC3 | bidirectional | Port C pin 3 general purpose I/O, 5V tolerant input/output with ADC123_IN13 and alternate functions for SPI2_MOSI/I2S2_SD, OTG_HS_ULPI_NXT, FMC_SDCKE0. |
| 19 | VDD | power_in | Main power supply pin, 1.7 V to 3.6 V operating range. |
| 20 | VSSA | power_in | Analog ground connection, reference potential 0V for analog circuits. |
| 21 | VREF+ | power_in | Positive reference voltage for ADC, 1.7 V to 3.6 V, must be decoupled with 100 nF capacitor. |
| 22 | VDDA | power_in | Analog power supply pin, 1.7 V to 3.6 V operating range, must be decoupled with capacitors. |
| 23 | PA0-WKUP | bidirectional | Port A pin 0 general purpose I/O with wakeup capability, 5V tolerant, with ADC123_IN0, WKUP0/TAMP_2, and timer/UART alternate functions. |
| 24 | PA1 | bidirectional | Port A pin 1 general purpose I/O, 5V tolerant input/output with ADC123_IN1 and alternate functions for TIM2_CH2, TIM5_CH2, USART2_RTS, UART4_RX, QUADSPI_BK1_IO3. |
| 25 | PA2 | bidirectional | Port A pin 2 general purpose I/O, 5V tolerant input/output with ADC123_IN2 and alternate functions for TIM2_CH3, TIM5_CH3, TIM9_CH1, USART2_TX. |
| 26 | PA3 | bidirectional | Port A pin 3 general purpose I/O, 5V tolerant input/output with ADC123_IN3 and alternate functions for TIM2_CH4, TIM5_CH4, TIM9_CH2, SAI1_FS_A, USART2_RX. |
| 27 | VSS | power_in | Ground connection, reference potential 0V. |
| 28 | VDD | power_in | Main power supply pin, 1.7 V to 3.6 V operating range. |
| 29 | PA4 | bidirectional | Port A pin 4 general purpose I/O, 3.3V tolerant directly connected to ADC with ADC12_IN4 and DAC_OUT1, alternate functions for SPI1_NSS, SPI3_NSS, USART2_CK, DCMI_HSYNC. |
| 30 | PA5 | bidirectional | Port A pin 5 general purpose I/O, 3.3V tolerant directly connected to ADC with ADC12_IN5 and DAC_OUT2, alternate functions for TIM2_CH1, TIM8_CH1N, SPI1_SCK, OTG_HS_ULPI_CK. |
| 31 | PA6 | bidirectional | Port A pin 6 general purpose I/O, 5V tolerant input/output with ADC12_IN6 and alternate functions for TIM1_BKIN, TIM3_CH1, TIM8_BKIN, SPI1_MISO, I2S2_MCK, DCMI_PIXCLK. |
| 32 | PA7 | bidirectional | Port A pin 7 general purpose I/O, 5V tolerant input/output with ADC12_IN7 and alternate functions for TIM1_CH1N, TIM3_CH2, TIM8_CH1N, SPI1_MOSI/I2S1_SD, TIM14_CH1, FMC_SDNWE. |
| 33 | PC4 | bidirectional | Port C pin 4 general purpose I/O, 5V tolerant input/output with ADC12_IN14 and alternate functions for I2S1_MCK, SPDIFRX_IN2, FMC_SDNE0. |
| 34 | PC5 | bidirectional | Port C pin 5 general purpose I/O, 5V tolerant input/output with ADC12_IN15 and alternate functions for USART3_RX, SPDIFRX_IN3, FMC_SDCKE0. |
| 35 | PB0 | bidirectional | Port B pin 0 general purpose I/O, 5V tolerant input/output with ADC12_IN8 and alternate functions for TIM1_CH2N, TIM3_CH3, TIM8_CH2N, SPI3_MOSI, UART4_CTS, OTG_HS_ULPI_D1, SDIO_D1. |
| 36 | PB1 | bidirectional | Port B pin 1 general purpose I/O, 5V tolerant input/output with ADC12_IN9 and alternate functions for TIM1_CH3N, TIM3_CH4, TIM8_CH3N, OTG_HS_ULPI_D2, SDIO_D2. |
| 37 | PB2-BOOT1 | bidirectional | Port B pin 2 general purpose I/O, 5V tolerant input/output with boot selection function and alternate functions for TIM2_CH4, SAI1_SD_A, SPI3_MOSI, QUADSPI_CLK, SDIO_CK. |
| 38 | PE7 | bidirectional | Port E pin 7 general purpose I/O, 5V tolerant input/output with alternate functions for TIM1_ETR, UART5_RX, QUADSPI_BK2_IO0, FMC_D4. |
| 39 | PE8 | bidirectional | Port E pin 8 general purpose I/O, 5V tolerant input/output with alternate functions for TIM1_CH1N, UART5_TX, QUADSPI_BK2_IO1, FMC_D5. |
| 40 | PE9 | bidirectional | Port E pin 9 general purpose I/O, 5V tolerant input/output with alternate functions for TIM1_CH1, QUADSPI_BK2_IO2, FMC_D6. |
| 41 | PE10 | bidirectional | Port E pin 10 general purpose I/O, 5V tolerant input/output with alternate functions for TIM1_CH2N, QUADSPI_BK2_IO3, FMC_D7. |
| 42 | PE11 | bidirectional | Port E pin 11 general purpose I/O, 5V tolerant input/output with alternate functions for TIM1_CH2, SPI4_NSS, SAI2_SD_B, FMC_D8. |
| 43 | PE12 | bidirectional | Port E pin 12 general purpose I/O, 5V tolerant input/output with alternate functions for TIM1_CH3N, SPI4_SCK, SAI2_SCK_B, FMC_D9. |
| 44 | PE13 | bidirectional | Port E pin 13 general purpose I/O, 5V tolerant input/output with alternate functions for TIM1_CH3, SPI4_MISO, SAI2_FS_B, FMC_D10. |
| 45 | PE14 | bidirectional | Port E pin 14 general purpose I/O, 5V tolerant input/output with alternate functions for TIM1_CH4, SPI4_MOSI, SAI2_MCLK_B, FMC_D11. |
| 46 | PE15 | bidirectional | Port E pin 15 general purpose I/O, 5V tolerant input/output with alternate functions for TIM1_BKIN, FMC_D12. |
| 47 | PB10 | bidirectional | Port B pin 10 general purpose I/O, 5V tolerant input/output with alternate functions for TIM2_CH3, I2C2_SCL, SPI2_SCK, SAI1_SCK_A, USART3_TX, OTG_HS_ULPI_D3. |
| 48 | VCAP_1 | passive | External capacitor connection for internal voltage regulator, connect 2.2 µF ceramic capacitor to ground. |
| 49 | VSS | power_in | Ground connection, reference potential 0V. |
| 50 | VDD | power_in | Main power supply pin, 1.7 V to 3.6 V operating range. |
| 51 | PB12 | bidirectional | Port B pin 12 general purpose I/O, 5V tolerant input/output with alternate functions for TIM1_BKIN, I2C2_SMBA, SPI2_NSS, SAI1_SCK_B, USART3_CK, CAN2_RX, OTG_HS_ULPI_D5, OTG_HS_ID. |
| 52 | PB13 | bidirectional | Port B pin 13 general purpose I/O, 5V tolerant input/output with OTG_HS_VBUS and alternate functions for TIM1_CH1N, SPI2_SCK, USART3_CTS, CAN2_TX, OTG_HS_ULPI_D6. |
| 53 | PB14 | bidirectional | Port B pin 14 general purpose I/O supplied by VDDUSB, 5V tolerant input/output with alternate functions for TIM1_CH2N, TIM8_CH2N, SPI2_MISO, USART3_RTS, TIM12_CH1, OTG_HS_DM. |
| 54 | PB15 | bidirectional | Port B pin 15 general purpose I/O supplied by VDDUSB, 5V tolerant input/output with alternate functions for RTC_REFIN, TIM1_CH3N, TIM8_CH3N, SPI2_MOSI, TIM12_CH2, OTG_HS_DP. |
| 55 | PD8 | bidirectional | Port D pin 8 general purpose I/O, 5V tolerant input/output with alternate functions for USART3_TX, SPDIFRX_IN1, FMC_D13. |
| 56 | PD9 | bidirectional | Port D pin 9 general purpose I/O, 5V tolerant input/output with alternate functions for USART3_RX, FMC_D14. |
| 57 | PD10 | bidirectional | Port D pin 10 general purpose I/O, 5V tolerant input/output with alternate functions for USART3_CK, FMC_D15. |
| 58 | PD11 | bidirectional | Port D pin 11 general purpose I/O, 5V tolerant input/output with alternate functions for FMPI2C1_SMBA, USART3_CTS, QUADSPI_BK1_IO0, SAI2_SD_A, FMC_A16. |
| 59 | PD12 | bidirectional | Port D pin 12 general purpose I/O, 5V tolerant with I2C FM+ option, alternate functions for TIM4_CH1, FMPI2C1_SCL, USART3_RTS, QUADSPI_BK1_IO1, SAI2_FS_A, FMC_A17. |
| 60 | PD13 | bidirectional | Port D pin 13 general purpose I/O, 5V tolerant with I2C FM+ option, alternate functions for TIM4_CH2, FMPI2C1_SDA, QUADSPI_BK1_IO3, SAI2_SCK_A, FMC_A18. |
| 61 | PD14 | bidirectional | Port D pin 14 general purpose I/O, 5V tolerant with I2C FM+ option, alternate functions for TIM4_CH3, FMPI2C1_SCL, SAI2_SCK_A, FMC_D0. |
| 62 | PD15 | bidirectional | Port D pin 15 general purpose I/O, 5V tolerant with I2C FM+ option, alternate functions for TIM4_CH4, FMPI2C1_SDA, FMC_D1. |
| 63 | PC6 | bidirectional | Port C pin 6 general purpose I/O, 5V tolerant with I2C FM+ option, alternate functions for TIM3_CH1, TIM8_CH1, FMPI2C1_SCL, I2S2_MCK, USART6_TX, SDIO_D6, DCMI_D0. |
| 64 | PC7 | bidirectional | Port C pin 7 general purpose I/O, 5V tolerant with I2C FM+ option, alternate functions for TIM3_CH2, TIM8_CH2, FMPI2C1_SDA, SPI2_SCK, I2S3_MCK, SPDIFRX_IN1, USART6_RX, SDIO_D7, DCMI_D1. |
| 65 | PC8 | bidirectional | Port C pin 8 general purpose I/O, 5V tolerant input/output with alternate functions for TRACED0, TIM3_CH3, TIM8_CH3, UART5_RTS, USART6_CK, SDIO_D0, DCMI_D2. |
| 66 | PC9 | bidirectional | Port C pin 9 general purpose I/O, 5V tolerant input/output with alternate functions for MCO2, TIM3_CH4, TIM8_CH4, I2C3_SDA, I2S_CKIN, UART5_CTS, QUADSPI_BK1_IO0, SDIO_D1, DCMI_D3. |
| 67 | PA8 | bidirectional | Port A pin 8 general purpose I/O, 5V tolerant input/output with alternate functions for MCO1, TIM1_CH1, I2C3_SCL, USART1_CK, OTG_FS_SOF. |
| 68 | PA9 | bidirectional | Port A pin 9 general purpose I/O supplied by VDDUSB, 5V tolerant with OTG_FS_VBUS and alternate functions for TIM1_CH2, I2C3_SMBA, SPI2_SCK, SAI1_SD_B, USART1_TX, DCMI_D0. |
| 69 | PA10 | bidirectional | Port A pin 10 general purpose I/O, 5V tolerant input/output with alternate functions for TIM1_CH3, USART1_RX, OTG_FS_ID, DCMI_D1. |
| 70 | PA11 | bidirectional | Port A pin 11 general purpose I/O supplied by VDDUSB, 5V tolerant input/output with alternate functions for TIM1_CH4, USART1_CTS, CAN1_RX, OTG_FS_DM. |
| 71 | PA12 | bidirectional | Port A pin 12 general purpose I/O supplied by VDDUSB, 5V tolerant input/output with alternate functions for TIM1_ETR, USART1_RTS, SAI2_FS_B, CAN1_TX, OTG_FS_DP. |
| 72 | PA13(JTMS-SWDIO) | bidirectional | Port A pin 13 or JTAG/SWD debug interface data line, 5V tolerant input/output for JTMS-SWDIO. |
| 73 | VCAP_2 | passive | External capacitor connection for internal voltage regulator, connect 2.2 µF ceramic capacitor to ground, optional second supply regulator capacitor. |
| 74 | VSS | power_in | Ground connection, reference potential 0V. |
| 75 | VDD | power_in | Main power supply pin, 1.7 V to 3.6 V operating range. |
| 76 | PA14(JTCK-SWCLK) | bidirectional | Port A pin 14 or JTAG/SWD debug interface clock line, 5V tolerant input/output for JTCK-SWCLK. |
| 77 | PA15(JTDI) | bidirectional | Port A pin 15 or JTAG debug interface data input, 5V tolerant input/output with alternate functions for JTDI, TIM2_CH1, HDMI_CEC, SPI1_NSS, SPI3_NSS, UART4_RTS. |
| 78 | PC10 | bidirectional | Port C pin 10 general purpose I/O, 5V tolerant input/output with alternate functions for SPI3_SCK, USART3_TX, UART4_TX, QUADSPI_BK1_IO1, SDIO_D2, DCMI_D8. |
| 79 | PC11 | bidirectional | Port C pin 11 general purpose I/O, 5V tolerant input/output with alternate functions for SPI3_MISO, USART3_RX, UART4_RX, QUADSPI_BK2_NCS, SDIO_D3, DCMI_D4. |
| 80 | PC12 | bidirectional | Port C pin 12 general purpose I/O, 5V tolerant input/output with alternate functions for I2C2_SDA, SPI3_MOSI, USART3_CK, UART5_TX, SDIO_CK, DCMI_D9. |
| 81 | PD0 | bidirectional | Port D pin 0 general purpose I/O, 5V tolerant input/output with alternate functions for SPI4_MISO, SPI3_MOSI, CAN1_RX, FMC_D2. |
| 82 | PD1 | bidirectional | Port D pin 1 general purpose I/O, 5V tolerant input/output with alternate functions for SPI2_NSS, CAN1_TX, FMC_D3. |
| 83 | PD2 | bidirectional | Port D pin 2 general purpose I/O, 5V tolerant input/output with alternate functions for TIM3_ETR, UART5_RX, SDIO_CMD, DCMI_D11. |
| 84 | PD3 | bidirectional | Port D pin 3 general purpose I/O, 5V tolerant input/output with alternate functions for TRACED1, SPI2_SCK, USART2_CTS, QUADSPI_CLK, FMC_CLK, DCMI_D5. |
| 85 | PD4 | bidirectional | Port D pin 4 general purpose I/O, 5V tolerant input/output with alternate functions for USART2_RTS, FMC_NOE. |
| 86 | PD5 | bidirectional | Port D pin 5 general purpose I/O, 5V tolerant input/output with alternate functions for USART2_TX, FMC_NWE. |
| 87 | PD6 | bidirectional | Port D pin 6 general purpose I/O, 5V tolerant input/output with alternate functions for SPI3_MOSI, SAI1_SD_A, USART2_RX, FMC_NWAIT, DCMI_D10. |
| 88 | PD7 | bidirectional | Port D pin 7 general purpose I/O, 5V tolerant input/output with alternate functions for USART2_CK, SPDIFRX_IN0, FMC_NE1. |
| 89 | PB3(JTDO/TRACESWO) | bidirectional | Port B pin 3 or JTAG output/SWD trace pin, 5V tolerant input/output with alternate functions for JTDO/TRACESWO, TIM2_CH2, I2C2_SDA, SPI1_SCK, SPI3_SCK. |
| 90 | PB4(NJTRST) | bidirectional | Port B pin 4 or JTAG test reset pin, 5V tolerant input/output with alternate functions for NJTRST, TIM3_CH1, I2C3_SDA, SPI1_MISO, SPI3_MISO, SPI2_NSS. |
| 91 | PB5 | bidirectional | Port B pin 5 general purpose I/O, 5V tolerant input/output with alternate functions for TIM3_CH2, I2C1_SMBA, SPI1_MOSI, SPI3_MOSI, CAN2_RX, OTG_HS_ULPI_D7, FMC_SDCKE1, DCMI_D10. |
| 92 | PB6 | bidirectional | Port B pin 6 general purpose I/O, 5V tolerant input/output with alternate functions for TIM4_CH1, HDMI_CEC, I2C1_SCL, USART1_TX, CAN2_TX, QUADSPI_BK1_NCS, FMC_SDNE1, DCMI_D5. |
| 93 | PB7 | bidirectional | Port B pin 7 general purpose I/O, 5V tolerant input/output with alternate functions for TIM4_CH2, I2C1_SDA, USART1_RX, SPDIFRX_IN0, FMC_NL, DCMI_VSYNC. |
| 94 | BOOT0 | input | Boot mode selection pin, input only with internal pull-down, selects boot from Flash (low) or System Memory/RAM (high) at reset. |
| 95 | PB8 | bidirectional | Port B pin 8 general purpose I/O, 5V tolerant input/output with alternate functions for TIM2_CH1, TIM4_CH3, TIM10_CH1, I2C1_SCL, CAN1_RX, SDIO_D4, DCMI_D6. |
| 96 | PB9 | bidirectional | Port B pin 9 general purpose I/O, 5V tolerant input/output with alternate functions for TIM2_CH2, TIM4_CH4, TIM11_CH1, I2C1_SDA, SPI2_NSS, SAI1_FS_B, CAN1_TX, SDIO_D5, DCMI_D7. |
| 97 | PE0 | bidirectional | Port E pin 0 general purpose I/O, 5V tolerant input/output with alternate functions for TIM4_ETR, SAI2_MCLK_A, FMC_NBL0, DCMI_D2. |
| 98 | PE1 | bidirectional | Port E pin 1 general purpose I/O, 5V tolerant input/output with alternate functions for FMC_NBL1, DCMI_D3. |
| 99 | VSS | power_in | Ground connection, reference potential 0V. |
| 100 | VDD | power_in | Main power supply pin, 1.7 V to 3.6 V operating range. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-100(14x14) |
| Category | Embedded Processors & Controllers |
| Pins | 100 |
CAD (KiCad official)
- Symbol:
STM32F446VET6TR - Footprint:
Package_QFP:LQFP-100_14x14mm_P0.5mm - 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
- 3D model files:
stm32f446vet6tr-etched.step/stm32f446vet6tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f446vet6tr.step/stm32f446vet6tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (198 pp, sha256
3902cf9f939a0ef6, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).