STM32G081CBT6

{
  "slug": "stm32g081cbt6",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32g081cbt6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32g081cbt6.kicad_sym",
    "stm32g081cbt6.kicad_mod",
    "stm32g081cbt6.glb",
    "stm32g081cbt6.step",
    "stm32g081cbt6.lbr",
    "docs/hero.png",
    "docs/stm32g081cbt6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32g081cbt6-hero.glb",
    "stm32g081cbt6-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM32G081CBT6",
    "manufacturer": "STMicroelectronics",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907746762625024",
    "parts": {
      "symbol": "stm32g081cbt6.kicad_sym",
      "footprint": "stm32g081cbt6.kicad_mod",
      "model_3d": "stm32g081cbt6-hero.glb",
      "model_3d_plain": "stm32g081cbt6.glb",
      "model_3d_step": "stm32g081cbt6-etched.step",
      "model_3d_step_plain": "stm32g081cbt6.step",
      "lbr": "stm32g081cbt6.lbr"
    },
    "distributor_links": {
      "lcsc": "C724243",
      "digikey": "STM32G081CBT6-ND",
      "mouser": "511-STM32G081CBT6"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T19:09:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "STM32G081CBT6-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32G081CBT6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PC13",
        "type": "bidirectional",
        "description": "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."
      },
      {
        "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": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "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": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2e45bbad3d0e813b156bacd1210a032cc922dd7e29e29fa6ffca9c8cadd5be6c",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}