STM32L052C8T6

{
  "schema_version": 1,
  "type": "component",
  "slug": "stm32l052c8t6",
  "title": "STM32L052C8T6",
  "brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l052c8t6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "STM32L052C8T6",
    "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/8586181756575342592",
    "parts": {
      "symbol": "stm32l052c8t6.kicad_sym",
      "footprint": "stm32l052c8t6.kicad_mod",
      "model_3d": "stm32l052c8t6-etched.glb",
      "model_3d_plain": "stm32l052c8t6.glb",
      "model_3d_step": "stm32l052c8t6-etched.step",
      "model_3d_step_plain": "stm32l052c8t6.step",
      "lbr": "stm32l052c8t6.lbr"
    },
    "distributor_links": {
      "lcsc": "C111213",
      "digikey": "497-14903-ND",
      "mouser": "511-STM32L052C8T6"
    },
    "distributor_check": {
      "checked_at": "2026-09-26T19:41:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-14903-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L052C8T6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input, 1.8-3.6 V for core and peripheral logic operation."
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "GPIO port C bit 13 (5V-tolerant I/O) with RTC tamper/timestamp/wakeup event alternate functions."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "32.768 kHz oscillator input for RTC clock or GPIO port C bit 14 (5V-tolerant I/O)."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "32.768 kHz oscillator output or GPIO port C bit 15 with standard 3.3 V I/O."
      },
      {
        "number": "5",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "External 1-25 MHz oscillator input or GPIO port H bit 0 with standard 3.3 V I/O."
      },
      {
        "number": "6",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "External oscillator output or GPIO port H bit 1 with standard 3.3 V I/O."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with 45 kΩ weak pull-up resistor and 50 ns digital filter for device reset."
      },
      {
        "number": "8",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground (0 V) reference for ADC, DAC, and comparators in single-supply operation."
      },
      {
        "number": "9",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power supply, 1.8-3.6 V (minimum 1.8 V with DAC enabled) for analog peripherals."
      },
      {
        "number": "10",
        "name": "PA0",
        "type": "bidirectional",
        "description": "GPIO port A bit 0 (3.3 V standard I/O), ADC channel 0, RTC wakeup input 1, and TIM2 channel 1 capture/compare."
      },
      {
        "number": "11",
        "name": "PA1",
        "type": "bidirectional",
        "description": "GPIO port A bit 1 (5V-tolerant) with ADC channel 1, TIM2 channel 2, and USART2 RTS_DE alternate functions."
      },
      {
        "number": "12",
        "name": "PA2",
        "type": "bidirectional",
        "description": "GPIO port A bit 2 (5V-tolerant) with ADC channel 2, USART2 TX, and COMP2 output alternate functions."
      },
      {
        "number": "13",
        "name": "PA3",
        "type": "bidirectional",
        "description": "GPIO port A bit 3 (5V-tolerant) with ADC channel 3 and USART2 RX alternate function."
      },
      {
        "number": "14",
        "name": "PA4",
        "type": "bidirectional",
        "description": "GPIO port A bit 4 (3.3 V standard I/O) with DAC output and ADC channel 4; reduced touch sensing sensitivity."
      },
      {
        "number": "15",
        "name": "PA5",
        "type": "bidirectional",
        "description": "GPIO port A bit 5 (3.3 V standard I/O) with ADC channel 5, SPI1 SCK, and TIM2 capture/compare functions."
      },
      {
        "number": "16",
        "name": "PA6",
        "type": "bidirectional",
        "description": "GPIO port A bit 6 (5V-tolerant) with ADC channel 6, SPI1 MISO, and COMP1 output alternate functions."
      },
      {
        "number": "17",
        "name": "PA7",
        "type": "bidirectional",
        "description": "GPIO port A bit 7 (5V-tolerant) with ADC channel 7, SPI1 MOSI, and COMP2 output alternate functions."
      },
      {
        "number": "18",
        "name": "PB0",
        "type": "bidirectional",
        "description": "GPIO port B bit 0 (5V-tolerant) with ADC channel 8 and internal VREF output capability."
      },
      {
        "number": "19",
        "name": "PB1",
        "type": "bidirectional",
        "description": "GPIO port B bit 1 (5V-tolerant) with ADC channel 9 and internal VREF output capability."
      },
      {
        "number": "20",
        "name": "PB2",
        "type": "bidirectional",
        "description": "GPIO port B bit 2 (5V-tolerant) with LPTIM1 output and TSC synchronization alternate functions."
      },
      {
        "number": "21",
        "name": "PB10",
        "type": "bidirectional",
        "description": "GPIO port B bit 10 (5V-tolerant) with TIM2 channel 3, LPUART1 TX, SPI2 SCK, and I2C2 SCL alternate functions."
      },
      {
        "number": "22",
        "name": "PB11",
        "type": "bidirectional",
        "description": "GPIO port B bit 11 (5V-tolerant) with TIM2 channel 4, LPUART1 RX, and I2C2 SDA alternate functions."
      },
      {
        "number": "23",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground (0 V) reference for microcontroller core and peripheral logic."
      },
      {
        "number": "24",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input, 1.8-3.6 V for core and peripheral logic operation."
      },
      {
        "number": "25",
        "name": "PB12",
        "type": "bidirectional",
        "description": "GPIO port B bit 12 (5V-tolerant) with SPI2 NSS/I2S2 WS, LPUART1 RTS_DE, and I2C2 SMBA alternate functions."
      },
      {
        "number": "26",
        "name": "PB13",
        "type": "bidirectional",
        "description": "GPIO port B bit 13 (Fast Mode+ 20 mA capable, 5V-tolerant) with SPI2 SCK, I2C2 SCL, and TIM21 CH1 alternate functions."
      },
      {
        "number": "27",
        "name": "PB14",
        "type": "bidirectional",
        "description": "GPIO port B bit 14 (Fast Mode+ 20 mA capable, 5V-tolerant) with SPI2 MISO, I2C2 SDA, and TIM21 CH2 alternate functions."
      },
      {
        "number": "28",
        "name": "PB15",
        "type": "bidirectional",
        "description": "GPIO port B bit 15 (5V-tolerant) with SPI2 MOSI and RTC reference clock input alternate functions."
      },
      {
        "number": "29",
        "name": "PA8",
        "type": "bidirectional",
        "description": "GPIO port A bit 8 (5V-tolerant) with MCO output and USART1 CK alternate functions."
      },
      {
        "number": "30",
        "name": "PA9",
        "type": "bidirectional",
        "description": "GPIO port A bit 9 (5V-tolerant) with MCO output and USART1 TX alternate function."
      },
      {
        "number": "31",
        "name": "PA10",
        "type": "bidirectional",
        "description": "GPIO port A bit 10 (5V-tolerant) with USART1 RX and TSC group 4 I/O alternate functions."
      },
      {
        "number": "32",
        "name": "PA11",
        "type": "bidirectional",
        "description": "GPIO port A bit 11 (5V-tolerant, powered by VDD_USB) providing USB_DM with internal 1.5 kΩ pull-up."
      },
      {
        "number": "33",
        "name": "PA12",
        "type": "bidirectional",
        "description": "GPIO port A bit 12 (5V-tolerant, powered by VDD_USB) providing USB_DP (USB D+ signal line)."
      },
      {
        "number": "34",
        "name": "PA13",
        "type": "bidirectional",
        "description": "GPIO port A bit 13 (5V-tolerant) providing Serial Wire Debug SWDIO interface and USB_NOE alternate function."
      },
      {
        "number": "35",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground (0 V) reference for microcontroller core and peripheral logic."
      },
      {
        "number": "36",
        "name": "VDD_USB",
        "type": "power_in",
        "description": "USB transceiver power supply, 3.0-3.6 V (3.0 V minimum required for USB compliance)."
      },
      {
        "number": "37",
        "name": "PA14",
        "type": "bidirectional",
        "description": "GPIO port A bit 14 (5V-tolerant) providing Serial Wire Clock SWCLK interface and USART2 TX alternate function."
      },
      {
        "number": "38",
        "name": "PA15",
        "type": "bidirectional",
        "description": "GPIO port A bit 15 (5V-tolerant) with USART2 RX, TIM2 capture/compare, and SPI1 NSS alternate functions."
      },
      {
        "number": "39",
        "name": "PB3",
        "type": "bidirectional",
        "description": "GPIO port B bit 3 (5V-tolerant) with COMP2 inverted input, SPI1 SCK, and TIM2 channel 2 alternate functions."
      },
      {
        "number": "40",
        "name": "PB4",
        "type": "bidirectional",
        "description": "GPIO port B bit 4 (5V-tolerant) with COMP2 non-inverted input, SPI1 MISO, and TIM22 channel 1 alternate functions."
      },
      {
        "number": "41",
        "name": "PB5",
        "type": "bidirectional",
        "description": "GPIO port B bit 5 (5V-tolerant) with COMP2 non-inverted input, SPI1 MOSI, and TIM22 channel 2 alternate functions."
      },
      {
        "number": "42",
        "name": "PB6",
        "type": "bidirectional",
        "description": "GPIO port B bit 6 (Fast Mode+ 20 mA capable, 5V-tolerant) with COMP2 non-inverted input and I2C1 SCL alternate function."
      },
      {
        "number": "43",
        "name": "PB7",
        "type": "bidirectional",
        "description": "GPIO port B bit 7 (Fast Mode+ 20 mA capable, 5V-tolerant) with COMP2 non-inverted input and I2C1 SDA alternate function."
      },
      {
        "number": "44",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot mode selection pin sampled during power-on or external reset; 0 = Boot from Flash, 1 = Boot from System Memory."
      },
      {
        "number": "45",
        "name": "PB8",
        "type": "bidirectional",
        "description": "GPIO port B bit 8 (Fast Mode+ 20 mA capable, 5V-tolerant) with I2C1 SCL and TSC synchronization alternate functions."
      },
      {
        "number": "46",
        "name": "PB9",
        "type": "bidirectional",
        "description": "GPIO port B bit 9 (Fast Mode+ 20 mA capable, 5V-tolerant) with I2C1 SDA and SPI2 NSS/I2S2 WS alternate functions."
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground (0 V) reference for microcontroller core and peripheral logic."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input, 1.8-3.6 V for core and peripheral logic operation."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: LQFP48 package pin 8 is listed as VSSA in Table 16 but appears to skip from pin 7 to pin 9 in some t; PA11 and PA12 are powered exclusively by VDD_USB (not VDD) per Table 16 note 3; these pins must main; Multiple pins serve dual supply domains: pins 1, 24, 48 connect to VDD (core); pins 32, 33 connect t"
        ],
        "pages_sent": 143,
        "cost_usd": 1.3983,
        "at": "2026-09-26T19:41:32"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181756575342592",
        "pages": 143,
        "sha256": "501c06e19fb3cdbd",
        "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"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "LQFP-48(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "48"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "stm32l052c8t6"
  ],
  "discovery_pitch": "STM32L052C8T6 (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32l052c8t6.kicad_sym",
    "stm32l052c8t6.kicad_mod",
    "stm32l052c8t6.glb",
    "stm32l052c8t6.step",
    "stm32l052c8t6.lbr",
    "docs/hero.png",
    "docs/stm32l052c8t6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  }
}