component
STM32G081CBT6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
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README.mdadded+84@@ -0,0 +1,84 @@+# STM32G081CBT6++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)++STM32G081CBT6 from STMicroelectronics, in a LQFP-48(7x7). 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 | PC13 | bidirectional | 5 V-tolerant I/O (FT) on the power-switch domain, which sinks only 3 mA, so output use is limited to 2 MHz with 30 pF load and it must not source current such as an LED; alternate function TIM1_BKIN, additional functions TAMP_IN1, RTC_TS, RTC_OUT1, WKUP2. |+| 2 | PC14-OSC32_IN | bidirectional | 5 V-tolerant I/O (FT) on the power-switch domain with the same 3 mA limit as PC13; alternate function TIM1_BKIN2, additional function OSC32_IN (32.768 kHz LSE oscillator input). |+| 3 | PC15-OSC32_OUT | bidirectional | 5 V-tolerant I/O (FT) on the power-switch domain with the same 3 mA limit as PC13; alternate functions OSC32_EN, OSC_EN, TIM15_BKIN, additional function OSC32_OUT (32.768 kHz LSE oscillator output). |+| 4 | VBAT | power_in | Backup supply input from 1.55 V to 3.6 V that powers the RTC, TAMP, the 32.768 kHz oscillator and backup registers when VDD is not present. |+| 5 | VREF+ | power_in | Analog reference input, or output of the internal voltage reference buffer when enabled; it must equal VDDA when VDDA < 2 V and be between 2 V and VDDA when VDDA ≥ 2 V. |+| 6 | VDD/VDDA | power_in | Main supply input from 1.7 V to 3.6 V for the internal regulator, I/O ring and analog blocks, with minimum 1.62 V for ADC/COMP, 1.8 V for DAC and 2.4 V for VREFBUF operation. |+| 7 | VSS/VSSA | power_in | Ground reference for the digital and analog supplies; all voltages are referenced to VSS. |+| 8 | PF0-OSC_IN | bidirectional | 5 V-tolerant I/O (FT) with alternate function TIM14_CH1 and additional function OSC_IN (high-speed crystal input). |+| 9 | PF1-OSC_OUT | bidirectional | 5 V-tolerant I/O (FT) with alternate functions OSC_EN and TIM15_CH1N and additional function OSC_OUT (high-speed crystal output). |+| 10 | PF2-NRST | bidirectional | Bidirectional reset pin with embedded weak pull-up resistor; it is also a 5 V-tolerant I/O (FT) with alternate function MCO. |+| 11 | PA0 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI2_SCK, USART2_CTS, TIM2_CH1_ETR, USART4_TX, LPTIM1_OUT, UCPD2_FRSTX and COMP1_OUT, additional functions COMP1_INM, ADC_IN0, TAMP_IN2 and WKUP1. |+| 12 | PA1 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_SCK/I2S1_CK, USART2_RTS_DE_CK, TIM2_CH2, USART4_RX, TIM15_CH1N, I2C1_SMBA and EVENTOUT, additional functions COMP1_INP and ADC_IN1. |+| 13 | PA2 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_MOSI/I2S1_SD, USART2_TX, TIM2_CH3, UCPD1_FRSTX, TIM15_CH1, LPUART1_TX and COMP2_OUT, additional functions COMP2_INM, ADC_IN2, WKUP4 and LSCO. |+| 14 | PA3 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI2_MISO, USART2_RX, TIM2_CH4, UCPD2_FRSTX, TIM15_CH2, LPUART1_RX and EVENTOUT, additional functions COMP2_INP and ADC_IN3. |+| 15 | PA4 | bidirectional | 3.6 V-tolerant I/O with analog switch function (TT_a); alternate functions include SPI1_NSS/I2S1_WS, SPI2_MOSI, TIM14_CH1, LPTIM2_OUT, UCPD2_FRSTX and EVENTOUT, additional functions ADC_IN4, DAC_OUT1 and RTC_OUT2. |+| 16 | PA5 | bidirectional | 3.6 V-tolerant I/O with analog switch function (TT_a); alternate functions include SPI1_SCK/I2S1_CK, CEC, TIM2_CH1_ETR, USART3_TX, LPTIM2_ETR, UCPD1_FRSTX and EVENTOUT, additional functions ADC_IN5 and DAC_OUT2. |+| 17 | PA6 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_MISO/I2S1_MCK, TIM3_CH1, TIM1_BKIN, USART3_CTS, TIM16_CH1, LPUART1_CTS and COMP1_OUT, additional function ADC_IN6. |+| 18 | PA7 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM1_CH1N, TIM14_CH1, TIM17_CH1, UCPD1_FRSTX and COMP2_OUT, additional function ADC_IN7. |+| 19 | PB0 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_NSS/I2S1_WS, TIM3_CH3, TIM1_CH2N, USART3_RX, LPTIM1_OUT, UCPD1_FRSTX and COMP1_OUT, additional function ADC_IN8. |+| 20 | PB1 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include TIM14_CH1, TIM3_CH4, TIM1_CH3N, USART3_RTS_DE_CK, LPTIM2_IN1, LPUART1_RTS_DE and EVENTOUT, additional functions COMP1_INM and ADC_IN9. |+| 21 | PB2 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI2_MISO, USART3_TX, LPTIM1_OUT and EVENTOUT, additional functions COMP1_INP and ADC_IN10. |+| 22 | PB10 | bidirectional | 5 V-tolerant I/O with analog switch and Fm+ capability (FT_fa); alternate functions include CEC, LPUART1_RX, TIM2_CH3, USART3_TX, SPI2_SCK, I2C2_SCL and COMP1_OUT, additional function ADC_IN11. |+| 23 | PB11 | bidirectional | 5 V-tolerant I/O with analog switch and Fm+ capability (FT_fa); alternate functions include SPI2_MOSI, LPUART1_TX, TIM2_CH4, USART3_RX, I2C2_SDA and COMP2_OUT, additional function ADC_IN15. |+| 24 | PB12 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI2_NSS, LPUART1_RTS_DE, TIM1_BKIN, TIM15_BKIN, UCPD2_FRSTX and EVENTOUT, additional function ADC_IN16. |+| 25 | PB13 | bidirectional | 5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include SPI2_SCK, LPUART1_CTS, TIM1_CH1N, USART3_CTS, TIM15_CH1N, I2C2_SCL and EVENTOUT. |+| 26 | PB14 | bidirectional | 5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include SPI2_MISO, UCPD1_FRSTX, TIM1_CH2N, USART3_RTS_DE_CK, TIM15_CH1, I2C2_SDA and EVENTOUT. |+| 27 | PB15 | bidirectional | 5 V-tolerant USB Type-C PD capable I/O (FT_c); alternate functions include SPI2_MOSI, TIM1_CH3N, TIM15_CH1N, TIM15_CH2 and EVENTOUT, additional functions UCPD1_CC2 and RTC_REFIN; a pull-down may be present at reset (note 3). |+| 28 | PA8 | bidirectional | 5 V-tolerant USB Type-C PD capable I/O (FT_c); alternate functions include MCO, SPI2_NSS, TIM1_CH1, LPTIM2_OUT and EVENTOUT, additional function UCPD1_CC1; a pull-down may be present at reset (note 3). |+| 29 | PA9 | bidirectional | 5 V-tolerant Fm+ capable I/O with USB Type-C PD dead-battery function (FT_fd); alternate functions include MCO, USART1_TX, TIM1_CH2, SPI2_MISO, TIM15_BKIN, I2C1_SCL and EVENTOUT, additional function UCPD1_DBCC1; a pull-down may be present at reset (note 3). |+| 30 | PC6 | bidirectional | 5 V-tolerant I/O (FT) with alternate functions UCPD1_FRSTX, TIM3_CH1 and TIM2_CH3. |+| 31 | PC7 | bidirectional | 5 V-tolerant I/O (FT) with alternate functions UCPD2_FRSTX, TIM3_CH2 and TIM2_CH4. |+| 32 | PA10 | bidirectional | 5 V-tolerant Fm+ capable I/O with USB Type-C PD dead-battery function (FT_fd); alternate functions include SPI2_MOSI, USART1_RX, TIM1_CH3, TIM17_BKIN, I2C1_SDA and EVENTOUT, additional function UCPD1_DBCC2; a pull-down may be present at reset (note 3). |+| 33 | PA11 [PA9] | bidirectional | 5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include SPI1_MISO/I2S1_MCK, USART1_CTS, TIM1_CH4, TIM1_BKIN2, I2C2_SCL and COMP1_OUT; this pin is the default location of the PA9 remap (note 4). |+| 34 | PA12 [PA10] | bidirectional | 5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include SPI1_MOSI/I2S1_SD, USART1_RTS_DE_CK, TIM1_ETR, I2S_CKIN, I2C2_SDA and COMP2_OUT; this pin is the default location of the PA10 remap (note 4). |+| 35 | PA13 | bidirectional | 5 V-tolerant I/O (FT) that after reset is the SWDIO debug function with an internal pull-up enabled; additional alternate functions IR_OUT and EVENTOUT. |+| 36 | PA14-BOOT0 | bidirectional | 5 V-tolerant I/O (FT) that after reset is the SWCLK debug function with an internal pull-down enabled; alternate functions include USART2_TX and EVENTOUT, and it doubles as the BOOT0 boot-mode pin. |+| 37 | PA15 | bidirectional | 5 V-tolerant I/O (FT) with alternate functions SPI1_NSS/I2S1_WS, USART2_RX, TIM2_CH1_ETR, USART4_RTS_DE_CK, USART3_RTS_DE_CK and EVENTOUT. |+| 38 | PD0 | bidirectional | 5 V-tolerant USB Type-C PD capable I/O (FT_c); alternate functions include EVENTOUT, SPI2_NSS and TIM16_CH1, additional function UCPD2_CC1; a pull-down may be present at reset (note 3). |+| 39 | PD1 | bidirectional | 5 V-tolerant I/O with USB Type-C PD dead-battery function (FT_d); alternate functions include EVENTOUT, SPI2_SCK and TIM17_CH1, additional function UCPD2_DBCC1; a pull-down may be present at reset (note 3). |+| 40 | PD2 | bidirectional | 5 V-tolerant USB Type-C PD capable I/O (FT_c); alternate functions include USART3_RTS_DE_CK, TIM3_ETR and TIM1_CH1N, additional function UCPD2_CC2; a pull-down may be present at reset (note 3). |+| 41 | PD3 | bidirectional | 5 V-tolerant I/O with USB Type-C PD dead-battery function (FT_d); alternate functions include USART2_CTS, SPI2_MISO and TIM1_CH2N, additional function UCPD2_DBCC2; a pull-down may be present at reset (note 3). |+| 42 | PB3 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_SCK/I2S1_CK, TIM1_CH2, TIM2_CH2, USART1_RTS_DE_CK and EVENTOUT, additional function COMP2_INM. |+| 43 | PB4 | bidirectional | 5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_MISO/I2S1_MCK, TIM3_CH1, USART1_CTS, TIM17_BKIN and EVENTOUT, additional function COMP2_INP. |+| 44 | PB5 | bidirectional | 5 V-tolerant I/O (FT); alternate functions include SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM16_BKIN, LPTIM1_IN1, I2C1_SMBA and COMP2_OUT, additional function WKUP6. |+| 45 | PB6 | bidirectional | 5 V-tolerant I/O with analog switch and Fm+ capability (FT_fa); alternate functions include USART1_TX, TIM1_CH3, TIM16_CH1N, SPI2_MISO, LPTIM1_ETR, I2C1_SCL and EVENTOUT, additional function COMP2_INP. |+| 46 | PB7 | bidirectional | 5 V-tolerant I/O with analog switch and Fm+ capability (FT_fa); alternate functions include USART1_RX, SPI2_MOSI, TIM17_CH1N, USART4_CTS, LPTIM1_IN2, I2C1_SDA and EVENTOUT, additional functions COMP2_INM and PVD_IN. |+| 47 | PB8 | bidirectional | 5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include CEC, SPI2_SCK, TIM16_CH1, USART3_TX, TIM15_BKIN, I2C1_SCL and EVENTOUT. |+| 48 | PB9 | bidirectional | 5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include IR_OUT, UCPD2_FRSTX, TIM17_CH1, USART3_RX, SPI2_NSS, I2C1_SDA and EVENTOUT. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | LQFP-48(7x7) |+| Category | Embedded Processors & Controllers |+| Pins | 48 |++## CAD (KiCad official)++- Symbol: `STM32G081CBT6`+- Footprint: `Package_QFP:LQFP-48_7x7mm_P0.5mm`+- 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)+- 3D model files: `stm32g081cbt6-etched.step` / `stm32g081cbt6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm32g081cbt6.step` / `stm32g081cbt6.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/8588907746762625024) (134 pp, sha256 `940ddef4661bd787`, retrieved 2026-10-08, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/stm32g081cbt6-datasheet.pdf)
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alternate function TIM1_BKIN, additional functions TAMP_IN1, RTC_TS, RTC_OUT1, WKUP2."+ },+ {+ "number": "2",+ "name": "PC14-OSC32_IN",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O (FT) on the power-switch domain with the same 3 mA limit as PC13; alternate function TIM1_BKIN2, additional function OSC32_IN (32.768 kHz LSE oscillator input)."+ },+ {+ "number": "3",+ "name": "PC15-OSC32_OUT",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O (FT) on the power-switch domain with the same 3 mA limit as PC13; alternate functions OSC32_EN, OSC_EN, TIM15_BKIN, additional function OSC32_OUT (32.768 kHz LSE oscillator output)."+ },+ {+ "number": "4",+ "name": "VBAT",+ "type": "power_in",+ "description": "Backup supply input from 1.55 V to 3.6 V that powers the RTC, TAMP, the 32.768 kHz oscillator and backup registers when VDD is not present."+ },+ {+ "number": "5",+ "name": "VREF+",+ "type": "power_in",+ "description": "Analog reference input, or output of the internal voltage reference buffer when enabled; it must equal VDDA when VDDA < 2 V and be between 2 V and VDDA when VDDA ≥ 2 V."+ },+ {+ "number": "6",+ "name": "VDD/VDDA",+ "type": "power_in",+ "description": "Main supply input from 1.7 V to 3.6 V for the internal regulator, I/O ring and analog blocks, with minimum 1.62 V for ADC/COMP, 1.8 V for DAC and 2.4 V for VREFBUF operation."+ },+ {+ "number": "7",+ "name": "VSS/VSSA",+ "type": "power_in",+ "description": "Ground reference for the digital and analog supplies; all voltages are referenced to VSS."+ },+ {+ "number": "8",+ "name": "PF0-OSC_IN",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O (FT) with alternate function TIM14_CH1 and additional function OSC_IN (high-speed crystal input)."+ },+ {+ "number": "9",+ "name": "PF1-OSC_OUT",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O (FT) with alternate functions OSC_EN and TIM15_CH1N and additional function OSC_OUT (high-speed crystal output)."+ },+ {+ "number": "10",+ "name": "PF2-NRST",+ "type": "bidirectional",+ "description": "Bidirectional reset pin with embedded weak pull-up resistor; it is also a 5 V-tolerant I/O (FT) with alternate function MCO."+ },+ {+ "number": "11",+ "name": "PA0",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI2_SCK, USART2_CTS, TIM2_CH1_ETR, USART4_TX, LPTIM1_OUT, UCPD2_FRSTX and COMP1_OUT, additional functions COMP1_INM, ADC_IN0, TAMP_IN2 and WKUP1."+ },+ {+ "number": "12",+ "name": "PA1",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_SCK/I2S1_CK, USART2_RTS_DE_CK, TIM2_CH2, USART4_RX, TIM15_CH1N, I2C1_SMBA and EVENTOUT, additional functions COMP1_INP and ADC_IN1."+ },+ {+ "number": "13",+ "name": "PA2",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_MOSI/I2S1_SD, USART2_TX, TIM2_CH3, UCPD1_FRSTX, TIM15_CH1, LPUART1_TX and COMP2_OUT, additional functions COMP2_INM, ADC_IN2, WKUP4 and LSCO."+ },+ {+ "number": "14",+ "name": "PA3",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI2_MISO, USART2_RX, TIM2_CH4, UCPD2_FRSTX, TIM15_CH2, LPUART1_RX and EVENTOUT, additional functions COMP2_INP and ADC_IN3."+ },+ {+ "number": "15",+ "name": "PA4",+ "type": "bidirectional",+ "description": "3.6 V-tolerant I/O with analog switch function (TT_a); alternate functions include SPI1_NSS/I2S1_WS, SPI2_MOSI, TIM14_CH1, LPTIM2_OUT, UCPD2_FRSTX and EVENTOUT, additional functions ADC_IN4, DAC_OUT1 and RTC_OUT2."+ },+ {+ "number": "16",+ "name": "PA5",+ "type": "bidirectional",+ "description": "3.6 V-tolerant I/O with analog switch function (TT_a); alternate functions include SPI1_SCK/I2S1_CK, CEC, TIM2_CH1_ETR, USART3_TX, LPTIM2_ETR, UCPD1_FRSTX and EVENTOUT, additional functions ADC_IN5 and DAC_OUT2."+ },+ {+ "number": "17",+ "name": "PA6",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_MISO/I2S1_MCK, TIM3_CH1, TIM1_BKIN, USART3_CTS, TIM16_CH1, LPUART1_CTS and COMP1_OUT, additional function ADC_IN6."+ },+ {+ "number": "18",+ "name": "PA7",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM1_CH1N, TIM14_CH1, TIM17_CH1, UCPD1_FRSTX and COMP2_OUT, additional function ADC_IN7."+ },+ {+ "number": "19",+ "name": "PB0",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_NSS/I2S1_WS, TIM3_CH3, TIM1_CH2N, USART3_RX, LPTIM1_OUT, UCPD1_FRSTX and COMP1_OUT, additional function ADC_IN8."+ },+ {+ "number": "20",+ "name": "PB1",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include TIM14_CH1, TIM3_CH4, TIM1_CH3N, USART3_RTS_DE_CK, LPTIM2_IN1, LPUART1_RTS_DE and EVENTOUT, additional functions COMP1_INM and ADC_IN9."+ },+ {+ "number": "21",+ "name": "PB2",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI2_MISO, USART3_TX, LPTIM1_OUT and EVENTOUT, additional functions COMP1_INP and ADC_IN10."+ },+ {+ "number": "22",+ "name": "PB10",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch and Fm+ capability (FT_fa); alternate functions include CEC, LPUART1_RX, TIM2_CH3, USART3_TX, SPI2_SCK, I2C2_SCL and COMP1_OUT, additional function ADC_IN11."+ },+ {+ "number": "23",+ "name": "PB11",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch and Fm+ capability (FT_fa); alternate functions include SPI2_MOSI, LPUART1_TX, TIM2_CH4, USART3_RX, I2C2_SDA and COMP2_OUT, additional function ADC_IN15."+ },+ {+ "number": "24",+ "name": "PB12",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI2_NSS, LPUART1_RTS_DE, TIM1_BKIN, TIM15_BKIN, UCPD2_FRSTX and EVENTOUT, additional function ADC_IN16."+ },+ {+ "number": "25",+ "name": "PB13",+ "type": "bidirectional",+ "description": "5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include SPI2_SCK, LPUART1_CTS, TIM1_CH1N, USART3_CTS, TIM15_CH1N, I2C2_SCL and EVENTOUT."+ },+ {+ "number": "26",+ "name": "PB14",+ "type": "bidirectional",+ "description": "5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include SPI2_MISO, UCPD1_FRSTX, TIM1_CH2N, USART3_RTS_DE_CK, TIM15_CH1, I2C2_SDA and EVENTOUT."+ },+ {+ "number": "27",+ "name": "PB15",+ "type": "bidirectional",+ "description": "5 V-tolerant USB Type-C PD capable I/O (FT_c); alternate functions include SPI2_MOSI, TIM1_CH3N, TIM15_CH1N, TIM15_CH2 and EVENTOUT, additional functions UCPD1_CC2 and RTC_REFIN; a pull-down may be present at reset (note 3)."+ },+ {+ "number": "28",+ "name": "PA8",+ "type": "bidirectional",+ "description": "5 V-tolerant USB Type-C PD capable I/O (FT_c); alternate functions include MCO, SPI2_NSS, TIM1_CH1, LPTIM2_OUT and EVENTOUT, additional function UCPD1_CC1; a pull-down may be present at reset (note 3)."+ },+ {+ "number": "29",+ "name": "PA9",+ "type": "bidirectional",+ "description": "5 V-tolerant Fm+ capable I/O with USB Type-C PD dead-battery function (FT_fd); alternate functions include MCO, USART1_TX, TIM1_CH2, SPI2_MISO, TIM15_BKIN, I2C1_SCL and EVENTOUT, additional function UCPD1_DBCC1; a pull-down may be present at reset (note 3)."+ },+ {+ "number": "30",+ "name": "PC6",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O (FT) with alternate functions UCPD1_FRSTX, TIM3_CH1 and TIM2_CH3."+ },+ {+ "number": "31",+ "name": "PC7",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O (FT) with alternate functions UCPD2_FRSTX, TIM3_CH2 and TIM2_CH4."+ },+ {+ "number": "32",+ "name": "PA10",+ "type": "bidirectional",+ "description": "5 V-tolerant Fm+ capable I/O with USB Type-C PD dead-battery function (FT_fd); alternate functions include SPI2_MOSI, USART1_RX, TIM1_CH3, TIM17_BKIN, I2C1_SDA and EVENTOUT, additional function UCPD1_DBCC2; a pull-down may be present at reset (note 3)."+ },+ {+ "number": "33",+ "name": "PA11 [PA9]",+ "type": "bidirectional",+ "description": "5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include SPI1_MISO/I2S1_MCK, USART1_CTS, TIM1_CH4, TIM1_BKIN2, I2C2_SCL and COMP1_OUT; this pin is the default location of the PA9 remap (note 4)."+ },+ {+ "number": "34",+ "name": "PA12 [PA10]",+ "type": "bidirectional",+ "description": "5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include SPI1_MOSI/I2S1_SD, USART1_RTS_DE_CK, TIM1_ETR, I2S_CKIN, I2C2_SDA and COMP2_OUT; this pin is the default location of the PA10 remap (note 4)."+ },+ {+ "number": "35",+ "name": "PA13",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O (FT) that after reset is the SWDIO debug function with an internal pull-up enabled; additional alternate functions IR_OUT and EVENTOUT."+ },+ {+ "number": "36",+ "name": "PA14-BOOT0",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O (FT) that after reset is the SWCLK debug function with an internal pull-down enabled; alternate functions include USART2_TX and EVENTOUT, and it doubles as the BOOT0 boot-mode pin."+ },+ {+ "number": "37",+ "name": "PA15",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O (FT) with alternate functions SPI1_NSS/I2S1_WS, USART2_RX, TIM2_CH1_ETR, USART4_RTS_DE_CK, USART3_RTS_DE_CK and EVENTOUT."+ },+ {+ "number": "38",+ "name": "PD0",+ "type": "bidirectional",+ "description": "5 V-tolerant USB Type-C PD capable I/O (FT_c); alternate functions include EVENTOUT, SPI2_NSS and TIM16_CH1, additional function UCPD2_CC1; a pull-down may be present at reset (note 3)."+ },+ {+ "number": "39",+ "name": "PD1",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with USB Type-C PD dead-battery function (FT_d); alternate functions include EVENTOUT, SPI2_SCK and TIM17_CH1, additional function UCPD2_DBCC1; a pull-down may be present at reset (note 3)."+ },+ {+ "number": "40",+ "name": "PD2",+ "type": "bidirectional",+ "description": "5 V-tolerant USB Type-C PD capable I/O (FT_c); alternate functions include USART3_RTS_DE_CK, TIM3_ETR and TIM1_CH1N, additional function UCPD2_CC2; a pull-down may be present at reset (note 3)."+ },+ {+ "number": "41",+ "name": "PD3",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with USB Type-C PD dead-battery function (FT_d); alternate functions include USART2_CTS, SPI2_MISO and TIM1_CH2N, additional function UCPD2_DBCC2; a pull-down may be present at reset (note 3)."+ },+ {+ "number": "42",+ "name": "PB3",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_SCK/I2S1_CK, TIM1_CH2, TIM2_CH2, USART1_RTS_DE_CK and EVENTOUT, additional function COMP2_INM."+ },+ {+ "number": "43",+ "name": "PB4",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch function (FT_a); alternate functions include SPI1_MISO/I2S1_MCK, TIM3_CH1, USART1_CTS, TIM17_BKIN and EVENTOUT, additional function COMP2_INP."+ },+ {+ "number": "44",+ "name": "PB5",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O (FT); alternate functions include SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM16_BKIN, LPTIM1_IN1, I2C1_SMBA and COMP2_OUT, additional function WKUP6."+ },+ {+ "number": "45",+ "name": "PB6",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch and Fm+ capability (FT_fa); alternate functions include USART1_TX, TIM1_CH3, TIM16_CH1N, SPI2_MISO, LPTIM1_ETR, I2C1_SCL and EVENTOUT, additional function COMP2_INP."+ },+ {+ "number": "46",+ "name": "PB7",+ "type": "bidirectional",+ "description": "5 V-tolerant I/O with analog switch and Fm+ capability (FT_fa); alternate functions include USART1_RX, SPI2_MOSI, TIM17_CH1N, USART4_CTS, LPTIM1_IN2, I2C1_SDA and EVENTOUT, additional functions COMP2_INM and PVD_IN."+ },+ {+ "number": "47",+ "name": "PB8",+ "type": "bidirectional",+ "description": "5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include CEC, SPI2_SCK, TIM16_CH1, USART3_TX, TIM15_BKIN, I2C1_SCL and EVENTOUT."+ },+ {+ "number": "48",+ "name": "PB9",+ "type": "bidirectional",+ "description": "5 V-tolerant Fm+ capable I/O (FT_f); alternate functions include IR_OUT, UCPD2_FRSTX, TIM17_CH1, USART3_RX, SPI2_NSS, I2C1_SDA and EVENTOUT."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: In Table 12 the LQFP48 pin numbers for PC14 and PC15 are printed on split rows (pin-number line sepa; Figure 5 (LQFP48 pinout drawing) text does not preserve pin order, so the pin-to-number mapping was ; Pins PC13, PC14 and PC15 are powered through the RTC power switch (3 mA sink limit); their GPIO outp"+ ],+ "pages_sent": 64,+ "cost_usd": 0.3061,+ "at": "2026-10-08T19:09:22"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907746762625024",+ "pages": 134,+ "sha256": "940ddef4661bd787",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 48,+ "described": 48,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "stm32g081cbt6.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 9,+ 9,+ 1.5+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "stm32g081cbt6-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 9,+ 9,+ 1.5+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "2e45bbad3d0e813b156bacd1210a032cc922dd7e29e29fa6ffca9c8cadd5be6c",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}