STM32L151CCU6

{
  "schema_version": 1,
  "type": "component",
  "slug": "stm32l151ccu6",
  "title": "STM32L151CCU6",
  "brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), UFQFPN-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",
    "stm32l151ccu6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "STM32L151CCU6",
    "manufacturer": "STMicroelectronics",
    "package": "UFQFPN-48(7x7)",
    "pin_count": 49,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886246509068288",
    "parts": {
      "symbol": "stm32l151ccu6.kicad_sym",
      "footprint": "stm32l151ccu6.kicad_mod",
      "model_3d": "stm32l151ccu6-hero.glb",
      "model_3d_plain": "stm32l151ccu6.glb",
      "model_3d_step": "stm32l151ccu6-etched.step",
      "model_3d_step_plain": "stm32l151ccu6.step",
      "lbr": "stm32l151ccu6.lbr"
    },
    "distributor_links": {
      "lcsc": "C503082",
      "digikey": "497-17519-ND",
      "mouser": "511-STM32L151CCU6"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T01:44:03Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-17519-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L151CCU6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VLCD",
        "type": "power_in",
        "description": "LCD power supply rail voltage 1.65 to 3.6 V, applicable to STM32L152xC devices only (connect to VDD for STM32L151xC)"
      },
      {
        "number": "2",
        "name": "PC13-WKUP2",
        "type": "bidirectional",
        "description": "Port C bit 13 general-purpose I/O with 5V tolerance and wakeup/RTC tamper/timestamp functionality"
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "Port C bit 14 configured as 32 kHz oscillator input at 3.3V logic levels when LSE enabled"
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Port C bit 15 configured as 32 kHz oscillator output at 3.3V logic levels when LSE enabled"
      },
      {
        "number": "5",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "Port H bit 0 configured as high-speed oscillator input at 3.3V logic levels when HSE enabled"
      },
      {
        "number": "6",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "Port H bit 1 configured as high-speed oscillator output at 3.3V logic levels when HSE enabled"
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Active-low bidirectional reset pin with embedded weak pull-up resistor requiring 0.1µF debouncing capacitor"
      },
      {
        "number": "8",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground supply reference pin, must be connected to system ground"
      },
      {
        "number": "9",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power supply 1.8 to 3.6 V requiring external 100nF decoupling capacitor"
      },
      {
        "number": "10",
        "name": "PA0-WKUP1",
        "type": "bidirectional",
        "description": "Port A bit 0 with 5V tolerance supporting timer/USART2/wakeup and ADC/comparator functions"
      },
      {
        "number": "11",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Port A bit 1 with 5V tolerance supporting timer/USART2/ADC/comparator and OpAmp functionality"
      },
      {
        "number": "12",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Port A bit 2 with 5V tolerance supporting timer/USART2/ADC and comparator functions"
      },
      {
        "number": "13",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Port A bit 3 with 3.3V logic supporting timer/USART2/LCD segment and ADC/comparator functions"
      },
      {
        "number": "14",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Port A bit 4 with 3.3V logic supporting SPI1/I2S chip select and DAC1 output"
      },
      {
        "number": "15",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Port A bit 5 with 3.3V logic supporting SPI1 serial clock and DAC2 output"
      },
      {
        "number": "16",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Port A bit 6 with 5V tolerance supporting timer/SPI1 MISO/LCD segment and ADC/comparator"
      },
      {
        "number": "17",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Port A bit 7 with 5V tolerance supporting timer/SPI1 MOSI/LCD segment and ADC/comparator"
      },
      {
        "number": "18",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0 with 3.3V logic supporting timer/LCD segment/ADC/comparator and OpAmp output"
      },
      {
        "number": "19",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1 with 5V tolerance supporting timer/LCD segment and ADC/comparator"
      },
      {
        "number": "20",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Port B bit 2 with 5V tolerance for BOOT1 mode selection and LCD voltage rail function"
      },
      {
        "number": "21",
        "name": "PB10",
        "type": "bidirectional",
        "description": "Port B bit 10 with 5V tolerance supporting I2C2 clock/USART3 transmit and LCD segment"
      },
      {
        "number": "22",
        "name": "PB11",
        "type": "bidirectional",
        "description": "Port B bit 11 with 5V tolerance supporting I2C2 data/USART3 receive and LCD segment"
      },
      {
        "number": "23",
        "name": "VSS_1",
        "type": "power_in",
        "description": "Power supply ground reference pin, must be connected to system ground"
      },
      {
        "number": "24",
        "name": "VDD_1",
        "type": "power_in",
        "description": "Core power supply 1.65 to 3.6 V requiring external 1µF and 100nF decoupling capacitors"
      },
      {
        "number": "25",
        "name": "PB12",
        "type": "bidirectional",
        "description": "Port B bit 12 with 5V tolerance supporting timer/SPI2/I2S chip select/USART3 and LCD segment"
      },
      {
        "number": "26",
        "name": "PB13",
        "type": "bidirectional",
        "description": "Port B bit 13 with 5V tolerance supporting timer/SPI2/I2S clock/USART3 and ADC input"
      },
      {
        "number": "27",
        "name": "PB14",
        "type": "bidirectional",
        "description": "Port B bit 14 with 5V tolerance supporting timer/SPI2 MISO/USART3 and ADC input"
      },
      {
        "number": "28",
        "name": "PB15",
        "type": "bidirectional",
        "description": "Port B bit 15 with 5V tolerance supporting timer/SPI2 MOSI/I2S data and LCD segment"
      },
      {
        "number": "29",
        "name": "PA8",
        "type": "bidirectional",
        "description": "Port A bit 8 with 5V tolerance supporting microcontroller clock output/USART1 clock and LCD COM"
      },
      {
        "number": "30",
        "name": "PA9",
        "type": "bidirectional",
        "description": "Port A bit 9 with 5V tolerance for USART1 transmit and LCD COM function"
      },
      {
        "number": "31",
        "name": "PA10",
        "type": "bidirectional",
        "description": "Port A bit 10 with 5V tolerance for USART1 receive and LCD COM function"
      },
      {
        "number": "32",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Port A bit 11 with 5V tolerance supporting USART1 CTS/SPI1 MISO and USB pull-down"
      },
      {
        "number": "33",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Port A bit 12 with 5V tolerance supporting USART1 RTS/SPI1 MOSI and USB pull-up"
      },
      {
        "number": "34",
        "name": "PA13",
        "type": "bidirectional",
        "description": "Port A bit 13 with 5V tolerance for JTAG/SWD SWDIO serial wire debug interface pin"
      },
      {
        "number": "35",
        "name": "VSS_2",
        "type": "power_in",
        "description": "Power supply ground reference pin, must be connected to system ground"
      },
      {
        "number": "36",
        "name": "VDD_2",
        "type": "power_in",
        "description": "Core power supply 1.65 to 3.6 V requiring external 1µF and 100nF decoupling capacitors"
      },
      {
        "number": "37",
        "name": "PA14",
        "type": "bidirectional",
        "description": "Port A bit 14 with 5V tolerance for JTAG/SWD SWCLK serial wire debug interface pin"
      },
      {
        "number": "38",
        "name": "PA15",
        "type": "bidirectional",
        "description": "Port A bit 15 with 5V tolerance supporting JTAG TDI/timer/SPI1,3 select and I2S3 functionality"
      },
      {
        "number": "39",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Port B bit 3 with 5V tolerance supporting JTAG TDO/timer/SPI1,3 clock and I2S3 clock"
      },
      {
        "number": "40",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Port B bit 4 with 5V tolerance for JTAG nTRST and SPI1/3 MISO functions"
      },
      {
        "number": "41",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Port B bit 5 with 5V tolerance supporting I2C1 alert/timer/SPI1,3 MOSI and I2S3 data"
      },
      {
        "number": "42",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Port B bit 6 with 5V tolerance supporting I2C1 clock/timer and USART1 transmit"
      },
      {
        "number": "43",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Port B bit 7 with 5V tolerance supporting I2C1 data/timer and USART1 receive"
      },
      {
        "number": "44",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated boot selection input pin read at power-up to determine bootloader or flash execution"
      },
      {
        "number": "45",
        "name": "PB8",
        "type": "bidirectional",
        "description": "Port B bit 8 with 5V tolerance supporting I2C1 clock/timer and LCD segment"
      },
      {
        "number": "46",
        "name": "PB9",
        "type": "bidirectional",
        "description": "Port B bit 9 with 5V tolerance supporting I2C1 data/timer and LCD COM function"
      },
      {
        "number": "47",
        "name": "VSS_3",
        "type": "power_in",
        "description": "Power supply ground reference pin, must be connected to system ground"
      },
      {
        "number": "48",
        "name": "VDD_3",
        "type": "power_in",
        "description": "Core power supply 1.65 to 3.6 V requiring external 1µF and 100nF decoupling capacitors"
      },
      {
        "number": "49",
        "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-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 49 added from the footprint"
        ],
        "pages_sent": 62,
        "cost_usd": 0.474,
        "at": "2026-10-07T01:43:42"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886246509068288",
        "pages": 136,
        "sha256": "5e6d5674cd06c108",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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        "file": "stm32l151ccu6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32l151ccu6-etched.step",
        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "73bc04251604887c28102f2c11f4ce834486b2669e5b5fff5ff7dadaa682c5b9",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "UFQFPN-48(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "49"
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "stm32l151ccu6"
  ],
  "discovery_pitch": "STM32L151CCU6 (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "stm32l151ccu6.lbr",
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}