component
STM32F091RCT6TR
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). 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
markdownSTM32F091RCT6TR
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)
STM32F091RCT6TR 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, voltage range 1.65 to 3.6 V |
| 2 | PC13 | bidirectional | GPIO port C pin 13 (TC I/O), alternate functions: EVENTOUT; additional functions: RTC_TAMP1, RTC_TS, RTC_OUT, WKUP2 |
| 3 | PC14OSC32_IN | bidirectional | |
| 4 | PC15OSC32_OUT | bidirectional | |
| 5 | PF0-OSC_IN | bidirectional | GPIO port F pin 0 (FTf I/O, OSC_IN function), alternate function CRS_SYNC, I2C1_SDA; additional function OSC_IN |
| 6 | PF1-OSC_OUT | bidirectional | GPIO port F pin 1 (FTf I/O, OSC_OUT function), alternate function I2C1_SCL; additional function OSC_OUT |
| 7 | NRST | input | Device reset input / internal reset output (active low), embedded weak pull-up resistor 25-55 kΩ |
| 8 | PC0 | bidirectional | |
| 9 | PC1 | bidirectional | |
| 10 | PC2 | bidirectional | |
| 11 | PC3 | bidirectional | |
| 12 | VSSA | power_in | Analog ground for ADC, DAC, comparators, and analog function blocks |
| 13 | VDDA | power_in | Analog power supply for ADC, DAC, comparators, and oscillators, voltage range 2.4 to 3.6 V when ADC/DAC used |
| 14 | PA0 | bidirectional | GPIO port A pin 0 (TTa I/O), alternate functions: USART2_CTS, TIM2_CH1_ETR, TSC_G1_IO1, USART4_TX; additional functions: COMP1_OUT, RTC_TAMP2, WKUP1, ADC_IN0, COMP1_INM6 |
| 15 | PA1 | bidirectional | GPIO port A pin 1 (TTa I/O), alternate functions: USART2_RTS, TIM2_CH2, TIM15_CH1N, TSC_G1_IO2, USART4_RX; additional functions: ADC_IN1, COMP1_INP, EVENTOUT |
| 16 | PA2 | bidirectional | GPIO port A pin 2 (TTa I/O), alternate functions: USART2_TX, TIM2_CH3, TIM15_CH1, TSC_G1_IO3; additional functions: COMP2_OUT, ADC_IN2, WKUP4, COMP2_INM6 |
| 17 | PA3 | bidirectional | GPIO port A pin 3 (TTa I/O), alternate functions: USART2_RX, TIM2_CH4, TIM15_CH2, TSC_G1_IO4; additional functions: ADC_IN3, COMP2_INP |
| 18 | VSS | power_in | Ground connection |
| 19 | VDD | power_in | Digital power supply, voltage range 2.0 to 3.6 V |
| 20 | PA4 | bidirectional | GPIO port A pin 4 (TTa I/O), alternate functions: SPI1_NSS/I2S1_WS, USART2_CK, TIM14_CH1, TSC_G2_IO1, USART6_TX; additional functions: COMP1_INM4, COMP2_INM4, ADC_IN4, DAC_OUT1 |
| 21 | PA5 | bidirectional | GPIO port A pin 5 (TTa I/O), alternate functions: SPI1_SCK/I2S1_CK, CEC, TIM2_CH1_ETR, TSC_G2_IO2, USART6_RX; additional functions: COMP1_INM5, COMP2_INM5, ADC_IN5, DAC_OUT2 |
| 22 | PA6 | bidirectional | GPIO port A pin 6 (TTa I/O), alternate functions: SPI1_MISO/I2S1_MCK, TIM3_CH1, TIM1_BKIN, TIM16_CH1, COMP1_OUT, TSC_G2_IO3, USART3_CTS; additional functions: ADC_IN6, EVENTOUT |
| 23 | PA7 | bidirectional | GPIO port A pin 7 (TTa I/O), alternate functions: SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM1_CH1N, TIM14_CH1, TIM17_CH1, COMP2_OUT, TSC_G2_IO4; additional functions: ADC_IN7, EVENTOUT |
| 24 | PC4 | bidirectional | |
| 25 | PC5 | bidirectional | |
| 26 | PB0 | bidirectional | GPIO port B pin 0 (TTa I/O), alternate functions: TIM3_CH3, TIM1_CH2N, TSC_G3_IO2, USART3_CK; additional functions: ADC_IN8, EVENTOUT |
| 27 | PB1 | bidirectional | GPIO port B pin 1 (TTa I/O), alternate functions: TIM3_CH4, TIM1_CH3N, TIM14_CH1, TSC_G3_IO3, USART3_RTS; additional functions: ADC_IN9 |
| 28 | PB2 | bidirectional | GPIO port B pin 2 (FT I/O), alternate function TSC_G3_IO4 |
| 29 | PB10 | bidirectional | GPIO port B pin 10 (FTf I/O), alternate functions: SPI2_SCK/I2S2_CK, I2C2_SCL, USART3_TX, CEC, TSC_SYNC, TIM2_CH3 |
| 30 | PB11 | bidirectional | GPIO port B pin 11 (FTf I/O), alternate functions: USART3_RX, I2C2_SDA, TIM2_CH4, TSC_G6_IO1; additional function EVENTOUT |
| 31 | VSS | power_in | Ground connection |
| 32 | VDD | power_in | Digital power supply, voltage range 2.0 to 3.6 V |
| 33 | PB12 | bidirectional | GPIO port B pin 12 (FT I/O), alternate functions: SPI2_NSS/I2S2_WS, TIM1_BKIN, TSC_G6_IO2, USART3_CK, TIM15_BKIN; additional function EVENTOUT |
| 34 | PB13 | bidirectional | GPIO port B pin 13 (FTf I/O), alternate functions: SPI2_SCK/I2S2_CK, I2C2_SCL, TIM1_CH1N, TSC_G6_IO3, USART3_CTS |
| 35 | PB14 | bidirectional | GPIO port B pin 14 (FTf I/O), alternate functions: SPI2_MISO/I2S2_MCK, I2C2_SDA, TIM1_CH2N, TIM15_CH1, TSC_G6_IO4, USART3_RTS |
| 36 | PB15 | bidirectional | GPIO port B pin 15 (FT I/O), alternate functions: SPI2_MOSI/I2S2_SD, TIM1_CH3N, TIM15_CH1N, TIM15_CH2; additional functions: WKUP7, RTC_REFIN |
| 37 | PC6 | bidirectional | |
| 38 | PC7 | bidirectional | |
| 39 | PC8 | bidirectional | |
| 40 | PC9 | bidirectional | |
| 41 | PA8 | bidirectional | GPIO port A pin 8 (FT I/O, supplied by VDDIO2), alternate functions: USART1_CK, TIM1_CH1, MCO, CRS_SYNC; additional function EVENTOUT |
| 42 | PA9 | bidirectional | GPIO port A pin 9 (FT I/O, supplied by VDDIO2), alternate functions: USART1_TX, TIM1_CH2, TIM15_BKIN, MCO, TSC_G4_IO1, I2C1_SCL |
| 43 | PA10 | bidirectional | GPIO port A pin 10 (FT I/O, supplied by VDDIO2), alternate functions: USART1_RX, TIM1_CH3, TIM17_BKIN, TSC_G4_IO2, I2C1_SDA |
| 44 | PA11 | bidirectional | GPIO port A pin 11 (FT I/O, supplied by VDDIO2), alternate functions: CAN_RX, USART1_CTS, TIM1_CH4, COMP1_OUT, TSC_G4_IO3, I2C2_SCL; additional function EVENTOUT |
| 45 | PA12 | bidirectional | GPIO port A pin 12 (FT I/O, supplied by VDDIO2), alternate functions: CAN_TX, USART1_RTS, TIM1_ETR, COMP2_OUT, TSC_G4_IO4, I2C2_SDA; additional function EVENTOUT |
| 46 | PA13 | bidirectional | GPIO port A pin 13 (FT I/O, supplied by VDDIO2), alternate function IR_OUT; additional function SWDIO (serial wire debug input/output) |
| 47 | VSS | power_in | Ground connection |
| 48 | VDDIO2 | power_in | Independent I/O power supply for selected pins, voltage range 1.65 to 3.6 V, monitored with internal comparator |
| 49 | PA14 | bidirectional | GPIO port A pin 14 (FT I/O, supplied by VDDIO2), alternate function USART2_TX; additional function SWCLK (serial wire debug clock) |
| 50 | PA15 | bidirectional | GPIO port A pin 15 (FT I/O, supplied by VDDIO2), alternate functions: SPI1_NSS/I2S1_WS, USART2_RX, TIM2_CH1_ETR, USART4_RTS; additional function EVENTOUT |
| 51 | PC10 | bidirectional | |
| 52 | PC11 | bidirectional | |
| 53 | PC12 | bidirectional | |
| 54 | PD2 | bidirectional | |
| 55 | PB3 | bidirectional | GPIO port B pin 3 (FT I/O), alternate functions: SPI1_SCK/I2S1_CK, TIM2_CH2, TSC_G5_IO1, USART5_TX; additional function EVENTOUT |
| 56 | PB4 | bidirectional | GPIO port B pin 4 (FT I/O), alternate functions: SPI1_MISO/I2S1_MCK, TIM3_CH1, TIM17_BKIN, TSC_G5_IO2, USART5_RX; additional function EVENTOUT |
| 57 | PB5 | bidirectional | GPIO port B pin 5 (FT I/O), alternate functions: SPI1_MOSI/I2S1_SD, TIM3_CH2, I2C1_SMBA, TIM16_BKIN, USART5_CK_RTS; additional function WKUP6 |
| 58 | PB6 | bidirectional | GPIO port B pin 6 (FTf I/O), alternate functions: I2C1_SCL, USART1_TX, TIM16_CH1N, TSC_G5_IO3 |
| 59 | PB7 | bidirectional | GPIO port B pin 7 (FTf I/O), alternate functions: I2C1_SDA, USART1_RX, TIM17_CH1N, TSC_G5_IO4, USART4_CTS |
| 60 | PF11BOOT0 | bidirectional | |
| 61 | PB8 | bidirectional | GPIO port B pin 8 (FTf I/O), alternate functions: CEC, I2C1_SCL, TIM16_CH1, TSC_SYNC, CAN_RX |
| 62 | PB9 | bidirectional | GPIO port B pin 9 (FTf I/O), alternate functions: IR_OUT, I2C1_SDA, TIM17_CH1, SPI2_NSS/I2S2_WS, CAN_TX; additional function EVENTOUT |
| 63 | VSS | power_in | Ground connection |
| 64 | VDD | power_in | Digital power supply, voltage range 2.0 to 3.6 V |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-64(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 64 |
CAD (KiCad official)
- Symbol:
STM32F091RCT6TR - Footprint:
Package_QFP:LQFP-64_10x10mm_P0.5mm - 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
stm32f091rct6tr-etched.step/stm32f091rct6tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f091rct6tr.step/stm32f091rct6tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (128 pp, sha256
f96a82f50344c619, retrieved 2026-09-29, 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).