STM32L052K8T6

{
  "slug": "stm32l052k8t6",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-32(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l052k8t6",
    "factory-2.0.0",
    "extractor-text"
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  "dependencies": {},
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    "path": "docs/hero.png"
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    "stm32l052k8t6.lbr",
    "docs/hero.png",
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  "component": {
    "mpn": "STM32L052K8T6",
    "manufacturer": "STMicroelectronics",
    "package": "LQFP-32(7x7)",
    "pin_count": 32,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586184454985961472",
    "parts": {
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      "footprint": "stm32l052k8t6.kicad_mod",
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      "model_3d_step": "stm32l052k8t6-etched.step",
      "model_3d_step_plain": "stm32l052k8t6.step",
      "lbr": "stm32l052k8t6.lbr"
    },
    "distributor_links": {
      "lcsc": "C222404",
      "digikey": "497-14904-ND",
      "mouser": "511-STM32L052K8T6"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T13:47:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-14904-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L052K8T6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Main digital supply pin; for the orderable STM32L052K8T6 (no 'D' option suffix) the VDD range is 1.8 V to 3.6 V with BOR enabled."
      },
      {
        "number": "2",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that also serves as the 32.768 kHz LSE oscillator input OSC32_IN."
      },
      {
        "number": "3",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O that also serves as the LSE oscillator output OSC32_OUT."
      },
      {
        "number": "4",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with an embedded weak pull-up resistor."
      },
      {
        "number": "5",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin; the datasheet specifies the ADC down to 1.65 V and the DAC down to 1.8 V."
      },
      {
        "number": "6",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O with alternate functions TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR and COMP1_OUT, and additional functions ADC_IN0, COMP1_INM6 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_DE and TIM21_ETR, and additional functions ADC_IN1 and COMP1_INP."
      },
      {
        "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 and COMP2_OUT, and additional functions ADC_IN2 and COMP2_INM6."
      },
      {
        "number": "9",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM21_CH2, TIM2_CH4, TSC_G1_IO4 and USART2_RX, and additional functions ADC_IN3 and COMP2_INP."
      },
      {
        "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, offering reduced touch sensing sensitivity so it 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 ADC_IN5, COMP1_INM5 and COMP2_INM5."
      },
      {
        "number": "12",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, 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, 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 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 TSC_G3_IO3 and LPUART1_RTS_DE, and additional functions ADC_IN9 and VREF_OUT."
      },
      {
        "number": "16",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin; all datasheet voltages are referenced to VSS."
      },
      {
        "number": "17",
        "name": "VDD",
        "type": "power_in",
        "description": "Main digital supply pin; for the orderable STM32L052K8T6 (no 'D' option suffix) the VDD range is 1.8 V to 3.6 V with BOR enabled."
      },
      {
        "number": "18",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions MCO, USB_CRS_SYNC, EVENTOUT and USART1_CK."
      },
      {
        "number": "19",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions MCO, TSC_G4_IO1 and USART1_TX."
      },
      {
        "number": "20",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TSC_G4_IO2 and USART1_RX."
      },
      {
        "number": "21",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS and COMP1_OUT, and additional function USB_DM; this pin is supplied by VDD_USB."
      },
      {
        "number": "22",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS_DE and COMP2_OUT, and additional function USB_DP; this pin is supplied by VDD_USB."
      },
      {
        "number": "23",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SWDIO (serial wire debug data) and USB_NOE."
      },
      {
        "number": "24",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SWCLK (serial wire debug clock) and USART2_TX."
      },
      {
        "number": "25",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_NSS, TIM2_ETR, EVENTOUT, USART2_RX and TIM2_CH1."
      },
      {
        "number": "26",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_SCK, TIM2_CH2, TSC_G5_IO1 and EVENTOUT, and additional function COMP2_INN."
      },
      {
        "number": "27",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, EVENTOUT, TSC_G5_IO2 and TIM22_CH1, and additional function COMP2_INP."
      },
      {
        "number": "28",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, LPTIM1_IN1, I2C1_SMBA and TIM22_CH2, and additional function COMP2_INP."
      },
      {
        "number": "29",
        "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": "30",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast-mode Plus capable (FTf) I/O with alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2 and TSC_G5_IO4, and additional functions COMP2_INP and PVD_IN."
      },
      {
        "number": "31",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 pin with no alternate functions listed in the pin definition table."
      },
      {
        "number": "32",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin; all datasheet voltages are referenced to VSS."
      }
    ],
    "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: Package mapping: the LQFP32 pin numbers were taken from the LQFP32 column of Table 16 (pin definitio; Ordering option: STM32L052K8T6 has no 'D' suffix, so per the ordering information scheme the VDD ran; USB supply: PA11 and PA12 are marked with note 3 (powered by VDD_USB, and VDD references must use VD"
        ],
        "pages_sent": 61,
        "cost_usd": 0.2592,
        "at": "2026-10-11T13:47:32"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586184454985961472",
        "pages": 143,
        "sha256": "501c06e19fb3cdbd",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 32,
        "described": 32,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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        "seat": "z = 0",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
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        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "sha256": "eab1522534302afbd243d1ef1470169f90d838588e44ea11fb7bbf8b8cf19dc2",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}