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STM32F091VCT6
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
markdownSTM32F091VCT6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-100(14x14)
STM32F091VCT6 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 | FT GPIO; alternate functions TSC_G7_IO1 (touch sensing group 7), TIM3_ETR; 5 V-tolerant input, ±8 mA output drive. |
| 2 | PE3 | bidirectional | FT GPIO; alternate functions TSC_G7_IO2, TIM3_CH1; 5 V-tolerant input, ±8 mA output drive. |
| 3 | PE4 | bidirectional | FT GPIO; alternate functions TSC_G7_IO3, TIM3_CH2; 5 V-tolerant input, ±8 mA output drive. |
| 4 | PE5 | bidirectional | FT GPIO; alternate functions TSC_G7_IO4, TIM3_CH3; 5 V-tolerant input, ±8 mA output drive. |
| 5 | PE6 | bidirectional | FT GPIO; alternate function TIM3_CH4; additional functions WKUP3, RTC_TAMP3; 5 V-tolerant input, ±8 mA output drive. |
| 6 | VBAT | power_in | Backup domain power supply for RTC, 32 kHz oscillator, and backup registers when VDD is absent; 1.65 to 3.6 V. |
| 7 | PC13 | bidirectional | TC GPIO supplied through power switch; limited to 3 mA max current, 2 MHz max speed, 30 pF max load; additional functions WKUP2, RTC_TAMP1, RTC_TS, RTC_OUT. |
| 8 | PC14-OSC32_IN | bidirectional | TC GPIO / 32.768 kHz oscillator input (OSC32_IN); supplied through power switch (3 mA, 2 MHz, 30 pF limit); function depends on RTC registers after first power-up. |
| 9 | PC15-OSC32_OUT | bidirectional | TC GPIO / 32.768 kHz oscillator output (OSC32_OUT); supplied through power switch (3 mA, 2 MHz, 30 pF limit); function depends on RTC registers after first power-up. |
| 10 | PF9 | bidirectional | FT GPIO; alternate functions TIM15_CH1, USART6_TX; 5 V-tolerant input, ±8 mA output drive. |
| 11 | PF10 | bidirectional | FT GPIO; alternate functions TIM15_CH2, USART6_RX; 5 V-tolerant input, ±8 mA output drive. |
| 12 | PF0-OSC_IN | bidirectional | FTf GPIO / HSE oscillator input (4-32 MHz); alternate functions CRS_SYNC, I2C1_SDA; 5 V-tolerant, Fast-mode Plus capable (20 mA sink). |
| 13 | PF1-OSC_OUT | bidirectional | FTf GPIO / HSE oscillator output; alternate function I2C1_SCL; 5 V-tolerant, Fast-mode Plus capable (20 mA sink). |
| 14 | NRST | bidirectional | Active-low bidirectional reset pin with embedded pull-up resistor (25-55 kΩ typical 40 kΩ); VIL max 0.3×VDD+0.07 V; minimum unfiltered pulse 300 ns (VDD > 2.7 V). |
| 15 | PC0 | bidirectional | TTa GPIO with ADC_IN10 analog input (0 to VDDA); alternate functions EVENTOUT, USART6_TX, USART7_TX; 3.3 V-tolerant, max ±8 mA output drive. |
| 16 | PC1 | bidirectional | TTa GPIO with ADC_IN11 analog input (0 to VDDA); alternate functions EVENTOUT, USART6_RX, USART7_RX; 3.3 V-tolerant, max ±8 mA output drive. |
| 17 | PC2 | bidirectional | TTa GPIO with ADC_IN12 analog input (0 to VDDA); alternate functions SPI2_MISO, I2S2_MCK, USART8_TX; 3.3 V-tolerant, max ±8 mA output drive. |
| 18 | PC3 | bidirectional | TTa GPIO with ADC_IN13 analog input (0 to VDDA); alternate functions SPI2_MOSI, I2S2_SD, USART8_RX; 3.3 V-tolerant, max ±8 mA output drive. |
| 19 | PF2 | bidirectional | FT GPIO; alternate functions EVENTOUT, USART7_TX, USART7_CK_RTS; additional function WKUP8; 5 V-tolerant, max ±8 mA output drive. |
| 20 | VSSA | power_in | Analog ground reference for ADC, DAC, comparators, internal oscillators, and PLL; must always be connected to VSS. |
| 21 | VDDA | power_in | Analog power supply for ADC, DAC, comparators, RCs, and PLL; VDD to 3.6 V (min 2.4 V when ADC or DAC used); must be ≥ VDD. |
| 22 | PF3 | bidirectional | FT GPIO; alternate functions EVENTOUT, USART7_RX, USART6_CK_RTS; 5 V-tolerant, max ±8 mA output drive. |
| 23 | PA0 | bidirectional | TTa GPIO with ADC_IN0, COMP1_INM6; alternate functions USART2_CTS, TIM2_CH1_ETR, TSC_G1_IO1, USART4_TX, COMP1_OUT; additional WKUP1, RTC_TAMP2. |
| 24 | PA1 | bidirectional | TTa GPIO with ADC_IN1, COMP1_INP; alternate functions USART2_RTS, TIM2_CH2, TIM15_CH1N, TSC_G1_IO2, USART4_RX; max ±8 mA output drive. |
| 25 | PA2 | bidirectional | TTa GPIO with ADC_IN2, COMP2_INM6; alternate functions USART2_TX, TIM2_CH3, TIM15_CH1, TSC_G1_IO3, COMP2_OUT; additional WKUP4. |
| 26 | PA3 | bidirectional | TTa GPIO with ADC_IN3, COMP2_INP; alternate functions USART2_RX, TIM2_CH4, TIM15_CH2, TSC_G1_IO4; max ±8 mA output drive. |
| 27 | VSS | power_in | Digital ground supply; 0 V reference for core logic and I/Os. |
| 28 | VDD | power_in | Main digital power supply (VDDIO1) for core logic and I/Os; 2.0 to 3.6 V; max 100 mA per pin. |
| 29 | PA4 | bidirectional | TTa GPIO with ADC_IN4, DAC_OUT1, COMP1_INM4, COMP2_INM4; alternate functions SPI1_NSS, I2S1_WS, TIM14_CH1, TSC_G2_IO1, USART2_CK, USART6_TX. |
| 30 | PA5 | bidirectional | TTa GPIO with ADC_IN5, DAC_OUT2, COMP1_INM5, COMP2_INM5; alternate functions SPI1_SCK, I2S1_CK, CEC, TIM2_CH1_ETR, TSC_G2_IO2, USART6_RX. |
| 31 | PA6 | bidirectional | TTa GPIO with ADC_IN6; alternate functions SPI1_MISO, I2S1_MCK, TIM3_CH1, TIM1_BKIN, TIM16_CH1, COMP1_OUT, TSC_G2_IO3, USART3_CTS; max ±8 mA output drive. |
| 32 | PA7 | bidirectional | TTa GPIO with ADC_IN7; alternate functions SPI1_MOSI, I2S1_SD, TIM3_CH2, TIM14_CH1, TIM1_CH1N, TIM17_CH1, COMP2_OUT, TSC_G2_IO4; max ±8 mA output drive. |
| 33 | PC4 | bidirectional | TTa GPIO with ADC_IN14; alternate functions EVENTOUT, USART3_TX; 3.3 V-tolerant, max ±8 mA output drive. |
| 34 | PC5 | bidirectional | TTa GPIO with ADC_IN15; alternate functions TSC_G3_IO1, USART3_RX; additional WKUP5; 3.3 V-tolerant, max ±8 mA output drive. |
| 35 | PB0 | bidirectional | TTa GPIO with ADC_IN8; alternate functions TIM3_CH3, TIM1_CH2N, TSC_G3_IO2, EVENTOUT, USART3_CK; max ±8 mA output drive. |
| 36 | PB1 | bidirectional | TTa GPIO with ADC_IN9; alternate functions TIM3_CH4, USART3_RTS, TIM14_CH1, TIM1_CH3N, TSC_G3_IO3; max ±8 mA output drive. |
| 37 | PB2 | bidirectional | FT GPIO; alternate function TSC_G3_IO4; 5 V-tolerant, max ±8 mA output drive. |
| 38 | PE7 | bidirectional | FT GPIO; alternate functions TIM1_ETR, USART5_CK_RTS; 5 V-tolerant, max ±8 mA output drive. |
| 39 | PE8 | bidirectional | FT GPIO; alternate functions TIM1_CH1N, USART4_TX; 5 V-tolerant, max ±8 mA output drive. |
| 40 | PE9 | bidirectional | FT GPIO; alternate functions TIM1_CH1, USART4_RX; 5 V-tolerant, max ±8 mA output drive. |
| 41 | PE10 | bidirectional | FT GPIO; alternate functions TIM1_CH2N, USART5_TX; 5 V-tolerant, max ±8 mA output drive. |
| 42 | PE11 | bidirectional | FT GPIO; alternate functions TIM1_CH2, USART5_RX; 5 V-tolerant, max ±8 mA output drive. |
| 43 | PE12 | bidirectional | FT GPIO; alternate functions SPI1_NSS, I2S1_WS, TIM1_CH3N; 5 V-tolerant, max ±8 mA output drive. |
| 44 | PE13 | bidirectional | FT GPIO; alternate functions SPI1_SCK, I2S1_CK, TIM1_CH3; 5 V-tolerant, max ±8 mA output drive. |
| 45 | PE14 | bidirectional | FT GPIO; alternate functions SPI1_MISO, I2S1_MCK, TIM1_CH4; 5 V-tolerant, max ±8 mA output drive. |
| 46 | PE15 | bidirectional | FT GPIO; alternate functions SPI1_MOSI, I2S1_SD, TIM1_BKIN; 5 V-tolerant, max ±8 mA output drive. |
| 47 | PB10 | bidirectional | FTf GPIO; alternate functions SPI2_SCK, I2S2_CK, I2C2_SCL, USART3_TX, CEC, TSC_SYNC, TIM2_CH3; 5 V-tolerant, Fast-mode Plus capable (20 mA sink). |
| 48 | PB11 | bidirectional | FTf GPIO; alternate functions USART3_RX, TIM2_CH4, EVENTOUT, TSC_G6_IO1, I2C2_SDA; 5 V-tolerant, Fast-mode Plus capable (20 mA sink). |
| 49 | VSS | power_in | Digital ground supply; 0 V reference for core logic and I/Os. |
| 50 | VDD | power_in | Main digital power supply (VDDIO1) for core logic and I/Os; 2.0 to 3.6 V; max 100 mA per pin. |
| 51 | PB12 | bidirectional | FT GPIO; alternate functions TIM1_BKIN, TIM15_BKIN, SPI2_NSS, I2S2_WS, USART3_CK, TSC_G6_IO2; 5 V-tolerant, max ±8 mA output drive. |
| 52 | PB13 | bidirectional | FTf GPIO; alternate functions SPI2_SCK, I2S2_CK, I2C2_SCL, USART3_CTS, TIM1_CH1N, TSC_G6_IO3; 5 V-tolerant, Fast-mode Plus capable (20 mA sink). |
| 53 | PB14 | bidirectional | FTf GPIO; alternate functions SPI2_MISO, I2S2_MCK, I2C2_SDA, USART3_RTS, TIM1_CH2N, TIM15_CH1, TSC_G6_IO4; 5 V-tolerant, Fm+ capable. |
| 54 | PB15 | bidirectional | FT GPIO; alternate functions SPI2_MOSI, I2S2_SD, TIM1_CH3N, TIM15_CH1N, TIM15_CH2; additional functions WKUP7, RTC_REFIN; 5 V-tolerant. |
| 55 | PD8 | bidirectional | FT GPIO; alternate function USART3_TX; 5 V-tolerant, max ±8 mA output drive. |
| 56 | PD9 | bidirectional | FT GPIO; alternate function USART3_RX; 5 V-tolerant, max ±8 mA output drive. |
| 57 | PD10 | bidirectional | FT GPIO; alternate function USART3_CK; 5 V-tolerant, max ±8 mA output drive. |
| 58 | PD11 | bidirectional | FT GPIO; alternate function USART3_CTS; 5 V-tolerant, max ±8 mA output drive. |
| 59 | PD12 | bidirectional | FT GPIO; alternate functions USART3_RTS, TSC_G8_IO1, USART8_CK_RTS; 5 V-tolerant, max ±8 mA output drive. |
| 60 | PD13 | bidirectional | FT GPIO; alternate functions TSC_G8_IO2, USART8_TX; 5 V-tolerant, max ±8 mA output drive. |
| 61 | PD14 | bidirectional | FT GPIO; alternate functions TSC_G8_IO3, USART8_RX; 5 V-tolerant, max ±8 mA output drive. |
| 62 | PD15 | bidirectional | FT GPIO; alternate functions TSC_G8_IO4, CRS_SYNC, USART7_CK_RTS; 5 V-tolerant, max ±8 mA output drive. |
| 63 | PC6 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions TIM3_CH1, USART7_TX; 5 V-tolerant, max ±8 mA output drive (max 40 mA total VDDIO2-sourced current). |
| 64 | PC7 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions TIM3_CH2, USART7_RX; 5 V-tolerant, max ±8 mA output drive. |
| 65 | PC8 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions TIM3_CH3, USART8_TX; 5 V-tolerant, max ±8 mA output drive. |
| 66 | PC9 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions TIM3_CH4, USART8_RX; 5 V-tolerant, max ±8 mA output drive. |
| 67 | PA8 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions USART1_CK, TIM1_CH1, MCO (clock output), CRS_SYNC; 5 V-tolerant, max ±8 mA output drive. |
| 68 | PA9 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions USART1_TX, TIM1_CH2, TIM15_BKIN, MCO, TSC_G4_IO1, I2C1_SCL; 5 V-tolerant. |
| 69 | PA10 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions USART1_RX, TIM1_CH3, TIM17_BKIN, TSC_G4_IO2, I2C1_SDA; 5 V-tolerant. |
| 70 | PA11 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions CAN_RX, USART1_CTS, TIM1_CH4, COMP1_OUT, TSC_G4_IO3, I2C2_SCL; 5 V-tolerant. |
| 71 | PA12 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions CAN_TX, USART1_RTS, TIM1_ETR, COMP2_OUT, TSC_G4_IO4, I2C2_SDA; 5 V-tolerant. |
| 72 | PA13 | bidirectional | FT GPIO supplied by VDDIO2; default function SWDIO (with internal pull-up activated at reset); alternate function IR_OUT; 5 V-tolerant. |
| 73 | PF6 | bidirectional | FT GPIO supplied by VDDIO2; no alternate functions defined; 5 V-tolerant, max ±8 mA output drive. |
| 74 | VSS | power_in | Digital ground supply; 0 V reference for core logic and I/Os. |
| 75 | VDDIO2 | power_in | Independent I/O power supply for 19 I/Os (PA8-PA15, PC6-PC12, PD0-PD2, PF6); 1.65 to 3.6 V; must not be supplied without valid VDD; monitored by internal comparator against VREFINT. |
| 76 | PA14 | bidirectional | FT GPIO supplied by VDDIO2; default function SWCLK (with internal pull-down activated at reset); alternate function USART2_TX; 5 V-tolerant. |
| 77 | PA15 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions SPI1_NSS, I2S1_WS, USART2_RX, USART4_RTS, TIM2_CH1_ETR; 5 V-tolerant. |
| 78 | PC10 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions USART3_TX, USART4_TX; 5 V-tolerant, max ±8 mA output drive. |
| 79 | PC11 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions USART3_RX, USART4_RX; 5 V-tolerant, max ±8 mA output drive. |
| 80 | PC12 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions USART3_CK, USART4_CK, USART5_TX; 5 V-tolerant, max ±8 mA output drive. |
| 81 | PD0 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions SPI2_NSS, I2S2_WS, CAN_RX; 5 V-tolerant, max ±8 mA output drive. |
| 82 | PD1 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions SPI2_SCK, I2S2_CK, CAN_TX; 5 V-tolerant, max ±8 mA output drive. |
| 83 | PD2 | bidirectional | FT GPIO supplied by VDDIO2; alternate functions USART3_RTS, TIM3_ETR, USART5_RX; 5 V-tolerant, max ±8 mA output drive. |
| 84 | PD3 | bidirectional | FT GPIO; alternate functions SPI2_MISO, I2S2_MCK, USART2_CTS; 5 V-tolerant, max ±8 mA output drive. |
| 85 | PD4 | bidirectional | FT GPIO; alternate functions SPI2_MOSI, I2S2_SD, USART2_RTS; 5 V-tolerant, max ±8 mA output drive. |
| 86 | PD5 | bidirectional | FT GPIO; alternate function USART2_TX; 5 V-tolerant, max ±8 mA output drive. |
| 87 | PD6 | bidirectional | FT GPIO; alternate function USART2_RX; 5 V-tolerant, max ±8 mA output drive. |
| 88 | PD7 | bidirectional | FT GPIO; alternate function USART2_CK; 5 V-tolerant, max ±8 mA output drive. |
| 89 | PB3 | bidirectional | FT GPIO; alternate functions SPI1_SCK, I2S1_CK, TIM2_CH2, TSC_G5_IO1, USART5_TX; 5 V-tolerant, max ±8 mA output drive. |
| 90 | PB4 | bidirectional | FT GPIO; alternate functions SPI1_MISO, I2S1_MCK, TIM17_BKIN, TIM3_CH1, TSC_G5_IO2, USART5_RX; 5 V-tolerant. |
| 91 | PB5 | bidirectional | FT GPIO; alternate functions SPI1_MOSI, I2S1_SD, I2C1_SMBA, TIM16_BKIN, TIM3_CH2, USART5_CK_RTS; additional WKUP6; 5 V-tolerant. |
| 92 | PB6 | bidirectional | FTf GPIO; alternate functions I2C1_SCL, USART1_TX, TIM16_CH1N, TSC_G5_IO3; 5 V-tolerant, Fast-mode Plus capable (20 mA sink). |
| 93 | PB7 | bidirectional | FTf GPIO; alternate functions I2C1_SDA, USART1_RX, USART4_CTS, TIM17_CH1N, TSC_G5_IO4; 5 V-tolerant, Fast-mode Plus capable. |
| 94 | PF11-BOOT0 | bidirectional | FT GPIO; sampled at reset to select boot memory source (BOOT0 function); alternate functions none defined; 5 V-tolerant, max ±8 mA output drive. |
| 95 | PB8 | bidirectional | FTf GPIO; alternate functions I2C1_SCL, CEC, TIM16_CH1, TSC_SYNC, CAN_RX; 5 V-tolerant, Fast-mode Plus capable (20 mA sink). |
| 96 | PB9 | bidirectional | FTf GPIO; alternate functions SPI2_NSS, I2S2_WS, I2C1_SDA, IR_OUT, TIM17_CH1, CAN_TX; 5 V-tolerant, Fast-mode Plus capable. |
| 97 | PE0 | bidirectional | FT GPIO; alternate functions EVENTOUT, TIM16_CH1; 5 V-tolerant, max ±8 mA output drive. |
| 98 | PE1 | bidirectional | FT GPIO; alternate functions EVENTOUT, TIM17_CH1; 5 V-tolerant, max ±8 mA output drive. |
| 99 | VSS | power_in | Digital ground supply; 0 V reference for core logic and I/Os. |
| 100 | VDD | power_in | Main digital power supply (VDDIO1) for core logic and I/Os; 2.0 to 3.6 V; max 100 mA per pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-100(14x14) |
| Category | Embedded Processors & Controllers |
| Pins | 100 |
CAD (KiCad official)
- Symbol:
STM32F091VCT6 - Footprint:
Package_QFP:LQFP-100_14x14mm_P0.5mm - 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
- 3D model files:
stm32f091vct6-etched.step/stm32f091vct6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f091vct6.step/stm32f091vct6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (128 pp, sha256
f96a82f50344c619, retrieved 2026-09-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).