STM32L072KBU7

{
  "slug": "stm32l072kbu7",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), UFQFPN-32(5x5). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l072kbu7",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32l072kbu7.kicad_sym",
    "stm32l072kbu7.kicad_mod",
    "stm32l072kbu7.glb",
    "stm32l072kbu7.step",
    "stm32l072kbu7.lbr",
    "docs/hero.png",
    "docs/stm32l072kbu7-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32l072kbu7-hero.glb",
    "stm32l072kbu7-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM32L072KBU7",
    "manufacturer": "STMicroelectronics",
    "package": "UFQFPN-32(5x5)",
    "pin_count": 33,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603083765803728896",
    "parts": {
      "symbol": "stm32l072kbu7.kicad_sym",
      "footprint": "stm32l072kbu7.kicad_mod",
      "model_3d": "stm32l072kbu7-hero.glb",
      "model_3d_plain": "stm32l072kbu7.glb",
      "model_3d_step": "stm32l072kbu7-etched.step",
      "model_3d_step_plain": "stm32l072kbu7.step",
      "lbr": "stm32l072kbu7.lbr"
    },
    "distributor_links": {
      "lcsc": "C2971124",
      "digikey": "497-16825-ND",
      "mouser": "511-STM32L072KBU7"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T11:59:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-16825-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L072KBU7",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O, also the 32.768 kHz LSE oscillator input OSC32_IN."
      },
      {
        "number": "2",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O, also the 32.768 kHz LSE oscillator output OSC32_OUT."
      },
      {
        "number": "3",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with an embedded weak pull-up resistor."
      },
      {
        "number": "4",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin of the device."
      },
      {
        "number": "5",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin of the device, used with VREF+ for the ADC and DAC references."
      },
      {
        "number": "6",
        "name": "PA0",
        "type": "bidirectional",
        "description": "I/O (TT structure) with alternate functions TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR, USART4_TX and COMP1_OUT, and additional functions ADC_IN0, COMP1_INM and RTC_TAMP2/WKUP1."
      },
      {
        "number": "7",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, TIM2_CH2, TSC_G1_IO2, USART2_RTS/USART2_DE, TIM21_ETR and USART4_RX, and additional functions COMP1_INP and ADC_IN1."
      },
      {
        "number": "8",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM21_CH1, TIM2_CH3, TSC_G1_IO3, USART2_TX, LPUART1_TX and COMP2_OUT, and additional functions COMP2_INM and ADC_IN2."
      },
      {
        "number": "9",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM21_CH2, TIM2_CH4, TSC_G1_IO4, USART2_RX and LPUART1_RX, and additional functions COMP2_INP and ADC_IN3."
      },
      {
        "number": "10",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O with alternate functions SPI1_NSS, TSC_G2_IO1, USART2_CK and TIM22_ETR, and additional functions COMP1_INM, COMP2_INM, ADC_IN4 and DAC_OUT1; it has reduced touch sensing sensitivity and is recommended as a sampling capacitor I/O."
      },
      {
        "number": "11",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O with alternate functions SPI1_SCK, TIM2_ETR, TSC_G2_IO2 and TIM2_CH1, and additional functions COMP1_INM, COMP2_INM, ADC_IN5 and DAC_OUT2."
      },
      {
        "number": "12",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, TIM3_CH1, TSC_G2_IO3, LPUART1_CTS, TIM22_CH1, EVENTOUT and COMP1_OUT, and additional function ADC_IN6."
      },
      {
        "number": "13",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, TIM3_CH2, TSC_G2_IO4, TIM22_CH2, EVENTOUT and COMP2_OUT, and additional function ADC_IN7."
      },
      {
        "number": "14",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, TIM3_CH3 and TSC_G3_IO2, and additional functions ADC_IN8 and VREF_OUT."
      },
      {
        "number": "15",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM3_CH4, TSC_G3_IO3 and LPUART1_RTS/LPUART1_DE, and additional functions ADC_IN9 and VREF_OUT."
      },
      {
        "number": "16",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin of the device."
      },
      {
        "number": "17",
        "name": "VDD",
        "type": "power_in",
        "description": "Main supply pin; the device operates from 1.65 V to 3.6 V."
      },
      {
        "number": "18",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions MCO, USB_CRS_SYNC, EVENTOUT, USART1_CK and I2C3_SCL."
      },
      {
        "number": "19",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions MCO, TSC_G4_IO1, USART1_TX, I2C1_SCL and I2C3_SMBA."
      },
      {
        "number": "20",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions TSC_G4_IO2, USART1_RX and I2C1_SDA."
      },
      {
        "number": "21",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O powered by VDD_USB, with alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS and COMP1_OUT, and additional function USB_DM."
      },
      {
        "number": "22",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O powered by VDD_USB, with alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS/USART1_DE and COMP2_OUT, and additional function USB_DP."
      },
      {
        "number": "23",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SWDIO, USB_NOE and LPUART1_RX."
      },
      {
        "number": "24",
        "name": "VDD_USB",
        "type": "power_in",
        "description": "Supply pin for the USB I/Os (PA11, PA12); for characteristics that refer to VDD, VDD_USB must be used for these pins."
      },
      {
        "number": "25",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SWCLK, USART2_TX and LPUART1_TX."
      },
      {
        "number": "26",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions SPI1_MISO, TIM3_CH1, TSC_G5_IO2, TIM22_CH1, USART1_CTS, USART5_RX and I2C3_SDA, and additional function COMP2_INP."
      },
      {
        "number": "27",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, LPTIM1_IN1, I2C1_SMBA, TIM3_CH2/TIM22_CH2, USART1_CK, USART5_CK and USART5_RTS/USART5_DE, and additional function COMP2_INP."
      },
      {
        "number": "28",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR and TSC_G5_IO3, and additional function COMP2_INP."
      },
      {
        "number": "29",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2, TSC_G5_IO4 and USART4_CTS, and additional functions COMP2_INP and VREF_PVD_IN."
      },
      {
        "number": "30",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 input pin (input only, type B in Table 15)."
      },
      {
        "number": "31",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin of the device."
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "Main supply pin; the device operates from 1.65 V to 3.6 V."
      },
      {
        "number": "33",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Table 16 places VSSA at UFQFPN32 pin 4 (its LQFP32 entry is '-'), but the UFQFPN32 drawing text on p; PA0 I/O structure is printed as 'TT' followed by footnote 'a', which is not defined in the extracted; The datasheet gives no further descriptive text for the supply, ground, analog and reset pins in Tab",
          "exposed pad 33 added from the footprint"
        ],
        "pages_sent": 80,
        "cost_usd": 0.3167,
        "at": "2026-10-12T11:59:04"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603083765803728896",
        "pages": 160,
        "sha256": "13ea53054244ac9d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "stm32l072kbu7.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "90af021df1253eae35bee4f4a4f9ba63bcf4a308f6e9f12d58f6e00181c23140",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32l072kbu7-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b8489a56a7523b8d255abce72e951057007400c195ec4d930d12cf6bdfa7ac03",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}