STM32L053C8T7

{
  "slug": "stm32l053c8t7",
  "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",
    "stm32l053c8t7",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32l053c8t7.kicad_sym",
    "stm32l053c8t7.kicad_mod",
    "stm32l053c8t7.glb",
    "stm32l053c8t7.step",
    "stm32l053c8t7.lbr",
    "docs/hero.png",
    "docs/stm32l053c8t7-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32l053c8t7-hero.glb",
    "stm32l053c8t7-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM32L053C8T7",
    "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/8588922721686601728",
    "parts": {
      "symbol": "stm32l053c8t7.kicad_sym",
      "footprint": "stm32l053c8t7.kicad_mod",
      "model_3d": "stm32l053c8t7-hero.glb",
      "model_3d_plain": "stm32l053c8t7.glb",
      "model_3d_step": "stm32l053c8t7-etched.step",
      "model_3d_step_plain": "stm32l053c8t7.step",
      "lbr": "stm32l053c8t7.lbr"
    },
    "distributor_links": {
      "lcsc": "C1339355",
      "digikey": "497-18945-ND",
      "mouser": "511-STM32L053C8T7"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T19:58:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-18945-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L053C8T7",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VLCD",
        "type": "power_in",
        "description": "LCD power supply pin for the optional LCD step-up converter; the datasheet gives no further voltage limit for this pin in the pin table."
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with additional functions RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2; floating input during and after reset."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O that is also the 32 kHz oscillator input OSC32_IN; floating input during and after reset."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O that is also the 32 kHz oscillator output OSC32_OUT; floating input during and after reset."
      },
      {
        "number": "5",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O that is also the HSE oscillator input OSC_IN, with alternate function USB_CRS_SYNC."
      },
      {
        "number": "6",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O that is also the HSE oscillator output OSC_OUT."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional active-low reset pin with embedded weak pull-up resistor."
      },
      {
        "number": "8",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground supply pin for the ADC, DAC, comparators and reference."
      },
      {
        "number": "9",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin for the ADC, DAC, comparators and reference."
      },
      {
        "number": "10",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O with alternate functions TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR, COMP1_OUT and additional functions COMP1_INM6, ADC_IN0, RTC_TAMP2/WKUP1."
      },
      {
        "number": "11",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, LCD_SEG0, TIM2_CH2, TSC_G1_IO2, USART2_RTS/USART2_DE, TIM21_ETR and additional functions COMP1_INP, ADC_IN1."
      },
      {
        "number": "12",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM21_CH1, LCD_SEG1, TIM2_CH3, TSC_G1_IO3, USART2_TX, COMP2_OUT and additional functions COMP2_INM6, ADC_IN2."
      },
      {
        "number": "13",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM21_CH2, LCD_SEG2, TIM2_CH4, TSC_G1_IO4, USART2_RX and additional functions COMP2_INP, ADC_IN3."
      },
      {
        "number": "14",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O with reduced touch sensing sensitivity, so it is recommended to use it as a sampling capacitor I/O; alternate functions SPI1_NSS, TSC_G2_IO1, USART2_CK, TIM22_ETR and additional functions COMP1_INM4, COMP2_INM4, ADC_IN4, DAC_OUT."
      },
      {
        "number": "15",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O with alternate functions SPI1_SCK, TIM2_ETR, TSC_G2_IO2, TIM2_CH1 and additional functions COMP1_INM5, COMP2_INM5, ADC_IN5."
      },
      {
        "number": "16",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, LCD_SEG3, TSC_G2_IO3, LPUART1_CTS, TIM22_CH1, EVENTOUT, COMP1_OUT and additional function ADC_IN6."
      },
      {
        "number": "17",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, LCD_SEG4, TSC_G2_IO4, TIM22_CH2, EVENTOUT, COMP2_OUT and additional function ADC_IN7."
      },
      {
        "number": "18",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, LCD_SEG5, TSC_G3_IO2 and additional functions LCD_VLCD3, ADC_IN8, VREF_OUT."
      },
      {
        "number": "19",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LCD_SEG6, TSC_G3_IO3, LPUART1_RTS/LPUART1_DE and additional functions ADC_IN9, VREF_OUT."
      },
      {
        "number": "20",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LPTIM1_OUT, TSC_G3_IO4 and additional function LCD_VLCD2."
      },
      {
        "number": "21",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LCD_SEG10, TIM2_CH3, TSC_SYNC, LPUART1_TX, SPI2_SCK, I2C2_SCL."
      },
      {
        "number": "22",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, LCD_SEG11, TIM2_CH4, TSC_G6_IO1, LPUART1_RX, I2C2_SDA."
      },
      {
        "number": "23",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground supply pin."
      },
      {
        "number": "24",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin (1.65 V to 3.6 V device supply range)."
      },
      {
        "number": "25",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI2_NSS/I2S2_WS, LCD_SEG12, LPUART1_RTS/LPUART1_DE, TSC_G6_IO2, I2C2_SMBA, EVENTOUT and additional function LCD_VLCD1."
      },
      {
        "number": "26",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant Fast Mode Plus capable (FTf) I/O with alternate functions SPI2_SCK/I2S2_CK, LCD_SEG13, TSC_G6_IO3, LPUART1_CTS, I2C2_SCL, TIM21_CH1."
      },
      {
        "number": "27",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V tolerant Fast Mode Plus capable (FTf) I/O with alternate functions SPI2_MISO/I2S2_MCK, LCD_SEG14, RTC_OUT, TSC_G6_IO4, LPUART1_RTS/LPUART1_DE, I2C2_SDA, TIM21_CH2."
      },
      {
        "number": "28",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI2_MOSI/I2S2_SD, LCD_SEG15, RTC_REFIN."
      },
      {
        "number": "29",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions MCO, LCD_COM0, USB_CRS_SYNC, EVENTOUT, USART1_CK."
      },
      {
        "number": "30",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions MCO, LCD_COM1, TSC_G4_IO1, USART1_TX."
      },
      {
        "number": "31",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LCD_COM2, TSC_G4_IO2, USART1_RX."
      },
      {
        "number": "32",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O powered by VDD_USB (note 2), with alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS, COMP1_OUT and additional function USB_DM."
      },
      {
        "number": "33",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O powered by VDD_USB (note 2), with alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS/USART1_DE, COMP2_OUT and additional function USB_DP."
      },
      {
        "number": "34",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SWDIO and USB_NOE."
      },
      {
        "number": "35",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground supply pin."
      },
      {
        "number": "36",
        "name": "VDD_USB",
        "type": "power_in",
        "description": "Supply pin for the I/Os PA11 and PA12 and the USB; for characteristics that refer to VDD on those pins, VDD_USB must be used."
      },
      {
        "number": "37",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SWCLK and USART2_TX."
      },
      {
        "number": "38",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_NSS, LCD_SEG17, TIM2_ETR, EVENTOUT, USART2_RX, TIM2_CH1."
      },
      {
        "number": "39",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_SCK, LCD_SEG7, TIM2_CH2, TSC_G5_IO1, EVENTOUT and additional function COMP2_INN."
      },
      {
        "number": "40",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, LCD_SEG8, EVENTOUT, TSC_G5_IO2, TIM22_CH1 and additional function COMP2_INP."
      },
      {
        "number": "41",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, LCD_SEG9, LPTIM1_IN1, I2C1_SMBA, TIM22_CH2 and additional function COMP2_INP."
      },
      {
        "number": "42",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant Fast Mode Plus capable (FTf) I/O with alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR, TSC_G5_IO3 and additional function COMP2_INP."
      },
      {
        "number": "43",
        "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 additional functions COMP2_INP, PVD_IN."
      },
      {
        "number": "44",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 input pin used to select the boot mode."
      },
      {
        "number": "45",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant Fast Mode Plus capable (FTf) I/O with alternate functions LCD_SEG16, TSC_SYNC, I2C1_SCL."
      },
      {
        "number": "46",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant Fast Mode Plus capable (FTf) I/O with alternate functions LCD_COM3, EVENTOUT, I2C1_SDA, SPI2_NSS/I2S2_WS."
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground supply pin."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin (1.65 V to 3.6 V device supply range)."
      }
    ],
    "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: Pin descriptions are compiled from Table 15 (pin definitions) and Table 14 (legend). The datasheet g; Pin 39 (PB3) is printed as TSC_G5I_O1 in Table 15 and Table 17. Table 8 gives the same signal as TSC; Pin types were mapped from Table 14 and KiCad classes: supply pins as power_in, I/O as bidirectional"
        ],
        "pages_sent": 56,
        "cost_usd": 0.273,
        "at": "2026-10-08T19:57:55"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588922721686601728",
        "pages": 136,
        "sha256": "b30ef01e0e2d9c80",
        "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": "stm32l053c8t7.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": "stm32l053c8t7-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": "305183ed31692828d5b28c0899425bf5ebe5fd2b76f43930f08531fa34ffd95f",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}