# STM32F107VCT6TR

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

STM32F107VCT6TR 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 | General-purpose I/O, 5V tolerant, alternate function TRACECK (trace clock output). |
| 2 | PE3 | bidirectional | General-purpose I/O, 5V tolerant, alternate function TRACED0 (trace data bit 0). |
| 3 | PE4 | bidirectional | General-purpose I/O, 5V tolerant, alternate function TRACED1 (trace data bit 1). |
| 4 | PE5 | bidirectional | General-purpose I/O, 5V tolerant, alternate function TRACED2 (trace data bit 2). |
| 5 | PE6 | bidirectional | General-purpose I/O, 5V tolerant, alternate function TRACED3 (trace data bit 3). |
| 6 | VBAT | power_out | Backup battery power supply (1.8 to 3.6 V) for RTC and backup registers. |
| 7 | PC13-TAMPER-RTC | bidirectional | General-purpose I/O or RTC tamper input, powered through backup power switch. |
| 8 | PC14-OSC32_IN | bidirectional | 32 kHz oscillator input or general-purpose I/O, powered through backup power switch. |
| 9 | PC15-OSC32_OUT | bidirectional | 32 kHz oscillator output or general-purpose I/O, powered through backup power switch. |
| 10 | VSS_5 | power_in | Ground (power supply return). |
| 11 | VDD_5 | power_out | Main power supply (2.0 to 3.6 V) for processor and I/Os. |
| 12 | OSC_IN | input | External oscillator input for 3-25 MHz crystal or external clock source. |
| 13 | OSC_OUT | output | External oscillator output for crystal oscillator circuit. |
| 14 | NRST | bidirectional | Active-low reset pin with open-drain output and integrated power-on/power-down reset circuitry. |
| 15 | PC0 | bidirectional | General-purpose I/O, 5V tolerant, alternate function ADC12_IN10. |
| 16 | PC1 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions ADC12_IN11 and Ethernet MDC. |
| 17 | PC2 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions ADC12_IN12 and Ethernet TXD2. |
| 18 | PC3 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions ADC12_IN13 and Ethernet TX_CLK. |
| 19 | VSSA | power_in | Analog ground (power supply return for analog circuits). |
| 20 | VREF- | power_in | ADC negative reference voltage input (0 V), decoupling required. |
| 21 | VREF+ | power_in | ADC positive reference voltage input (typically VDDA), decoupling required. |
| 22 | VDDA | power_out | Analog power supply (2.4 to 3.6 V minimum when ADC is used). |
| 23 | PA0-WKUP | bidirectional | General-purpose I/O or wakeup pin, 5V tolerant, alternate functions USART2_CTS, ADC12_IN0, and timer inputs. |
| 24 | PA1 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions USART2_RTS, ADC12_IN1, and timer/Ethernet signals. |
| 25 | PA2 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions USART2_TX, ADC12_IN2, and timer/Ethernet signals. |
| 26 | PA3 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions USART2_RX, ADC12_IN3, and timer/Ethernet signals. |
| 27 | VSS_4 | power_in | Ground (power supply return). |
| 28 | VDD_4 | power_out | Main power supply (2.0 to 3.6 V) for processor and I/Os. |
| 29 | PA4 | bidirectional | General-purpose I/O, 5V tolerant, default functions SPI1_NSS and DAC_OUT1, remappable to SPI3_NSS. |
| 30 | PA5 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions SPI1_SCK, DAC_OUT2, and ADC12_IN5. |
| 31 | PA6 | bidirectional | General-purpose I/O, 5V tolerant, default functions SPI1_MISO and ADC12_IN6, remappable to TIM1_BKIN. |
| 32 | PA7 | bidirectional | General-purpose I/O, 5V tolerant, default functions SPI1_MOSI and Ethernet/ADC, remappable to TIM1_CH1N. |
| 33 | PC4 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions ADC12_IN14 and Ethernet RXD0. |
| 34 | PC5 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions ADC12_IN15 and Ethernet RXD1. |
| 35 | PB0 | bidirectional | General-purpose I/O, 5V tolerant, default functions ADC12_IN8, TIM3_CH3, and Ethernet RXD2, remappable to TIM1_CH2N. |
| 36 | PB1 | bidirectional | General-purpose I/O, 5V tolerant, default functions ADC12_IN9, TIM3_CH4, and Ethernet RXD3, remappable to TIM1_CH3N. |
| 37 | PB2 | bidirectional | General-purpose I/O (boot pin), 5V tolerant. |
| 38 | PE7 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM1_ETR. |
| 39 | PE8 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM1_CH1N. |
| 40 | PE9 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM1_CH1. |
| 41 | PE10 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM1_CH2N. |
| 42 | PE11 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM1_CH2. |
| 43 | PE12 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM1_CH3N. |
| 44 | PE13 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM1_CH3. |
| 45 | PE14 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM1_CH4. |
| 46 | PE15 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM1_BKIN. |
| 47 | PB10 | bidirectional | General-purpose I/O, 5V tolerant, default functions I2C2_SCL and USART3_TX, remappable to TIM2_CH3. |
| 48 | PB11 | bidirectional | General-purpose I/O, 5V tolerant, default functions I2C2_SDA and USART3_RX, remappable to TIM2_CH4. |
| 49 | VSS_1 | power_in | Ground (power supply return). |
| 50 | VDD_1 | power_out | Main power supply (2.0 to 3.6 V) for processor and I/Os. |
| 51 | PB12 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions SPI2_NSS, I2S2_WS, I2C2_SMBA, USART3_CK, TIM1_BKIN, CAN2_RX, and Ethernet TXD0. |
| 52 | PB13 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions SPI2_SCK, I2S2_CK, USART3_CTS, TIM1_CH1N, CAN2_TX, and Ethernet TXD1. |
| 53 | PB14 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions SPI2_MISO, TIM1_CH2N, and USART3_RTS. |
| 54 | PB15 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions SPI2_MOSI, I2S2_SD, and TIM1_CH3N. |
| 55 | PD8 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate functions USART3_TX and Ethernet signals. |
| 56 | PD9 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate functions USART3_RX and Ethernet RXD0. |
| 57 | PD10 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate functions USART3_CK and Ethernet RXD1. |
| 58 | PD11 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate functions USART3_CTS and Ethernet RXD2. |
| 59 | PD12 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate functions TIM4_CH1, USART3_RTS, and Ethernet RXD3. |
| 60 | PD13 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM4_CH2. |
| 61 | PD14 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM4_CH3. |
| 62 | PD15 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM4_CH4. |
| 63 | PC6 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions I2S2_MCK and TIM3_CH1. |
| 64 | PC7 | bidirectional | General-purpose I/O, 5V tolerant, default function I2S3_MCK, remappable to TIM3_CH2. |
| 65 | PC8 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM3_CH3. |
| 66 | PC9 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function TIM3_CH4. |
| 67 | PA8 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions USART1_CK, OTG_FS_SOF, TIM1_CH1, and MCO (microcontroller clock output). |
| 68 | PA9 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions USART1_TX, TIM1_CH2, and OTG_FS_VBUS. |
| 69 | PA10 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions USART1_RX, TIM1_CH3, and OTG_FS_ID. |
| 70 | PA11 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions USART1_CTS, CAN1_RX, TIM1_CH4, and OTG_FS_DM. |
| 71 | PA12 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions USART1_RTS, OTG_FS_DP, CAN1_TX, and TIM1_ETR. |
| 72 | PA13 | bidirectional | JTAG test mode select (JTMS) or serial wire debug data I/O (SWDIO), 5V tolerant. |
| 73 | NC | unconnected | Not connected internally. |
| 74 | VSS_2 | power_in | Ground (power supply return). |
| 75 | VDD_2 | power_out | Main power supply (2.0 to 3.6 V) for processor and I/Os. |
| 76 | PA14 | bidirectional | JTAG test clock (JTCK) or serial wire debug clock (SWCLK), 5V tolerant. |
| 77 | PA15 | bidirectional | JTAG test data input (JTDI) or SPI3_NSS/I2S3_WS, 5V tolerant, remappable to TIM2_CH1_ETR and SPI1_NSS. |
| 78 | PC10 | bidirectional | General-purpose I/O, 5V tolerant, default function UART4_TX, remappable to USART3_TX and SPI3/I2S3 signals. |
| 79 | PC11 | bidirectional | General-purpose I/O, 5V tolerant, default function UART4_RX, remappable to USART3_RX and SPI3_MISO. |
| 80 | PC12 | bidirectional | General-purpose I/O, 5V tolerant, default function UART5_TX, remappable to USART3_CK and SPI3/I2S3 signals. |
| 81 | PD0 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate functions OSC_IN and CAN1_RX. |
| 82 | PD1 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate functions OSC_OUT and CAN1_TX. |
| 83 | PD2 | bidirectional | General-purpose I/O, 5V tolerant, alternate functions TIM3_ETR and UART5_RX. |
| 84 | PD3 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function USART2_CTS. |
| 85 | PD4 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function USART2_RTS. |
| 86 | PD5 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function USART2_TX. |
| 87 | PD6 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function USART2_RX. |
| 88 | PD7 | bidirectional | General-purpose I/O, 5V tolerant, remappable alternate function USART2_CK. |
| 89 | PB3 | bidirectional | JTAG test data output (JTDO) or SPI3_SCK/I2S3_CK, 5V tolerant, remappable to TRACESWO and TIM2/SPI1 signals. |
| 90 | PB4 | bidirectional | JTAG nTRST (test reset) input or SPI3_MISO, 5V tolerant, remappable to TIM3_CH1 and SPI1_MISO. |
| 91 | PB5 | bidirectional | General-purpose I/O, alternate functions I2C1_SMBA, SPI3_MOSI, I2S3_SD, and Ethernet PPS output, remappable to CAN2_RX and timer/SPI1 functions. |
| 92 | PB6 | bidirectional | General-purpose I/O, 5V tolerant, default functions I2C1_SCL and TIM4_CH1, remappable to USART1_TX and CAN2_TX. |
| 93 | PB7 | bidirectional | General-purpose I/O, 5V tolerant, default functions I2C1_SDA and TIM4_CH2, remappable to USART1_RX. |
| 94 | BOOT0 | input | Boot option pin, selects boot source on device reset. |
| 95 | PB8 | bidirectional | General-purpose I/O, 5V tolerant, default functions TIM4_CH3 and Ethernet TXD3, remappable to I2C1_SCL and CAN1_RX. |
| 96 | PB9 | bidirectional | General-purpose I/O, 5V tolerant, default function TIM4_CH4, remappable to I2C1_SDA and CAN1_TX. |
| 97 | PE0 | bidirectional | General-purpose I/O, 5V tolerant, alternate function TIM4_ETR (timer external trigger). |
| 98 | PE1 | bidirectional | General-purpose I/O, 5V tolerant. |
| 99 | VSS_3 | power_in | Ground (power supply return). |
| 100 | VDD_3 | power_out | Main power supply (2.0 to 3.6 V) for processor and I/Os. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `STM32F107VCT6TR`
- Footprint: `Package_QFP:LQFP-100_14x14mm_P0.5mm`
- 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
- 3D model files: `stm32f107vct6tr-etched.step` / `stm32f107vct6tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm32f107vct6tr.step` / `stm32f107vct6tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894229430591488) (108 pp, sha256 `ca4bad652e5eb36d`, retrieved 2026-10-05, 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](docs/stm32f107vct6tr-datasheet.pdf)