STM32L011F4P6

{
  "schema_version": 1,
  "type": "component",
  "slug": "stm32l011f4p6",
  "title": "STM32L011F4P6",
  "brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), TSSOP-20. Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "mcu",
    "stm32l011f4p6"
  ],
  "component": {
    "mpn": "STM32L011F4P6",
    "manufacturer": "STMicroelectronics",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "MCU",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://www.st.com/resource/en/datasheet/stm32l011f4p6.pdf",
    "parts": {
      "symbol": "stm32l011f4p6.kicad_sym",
      "footprint": "stm32l011f4p6.kicad_mod",
      "model_3d": "stm32l011f4p6-etched.glb",
      "model_3d_plain": "stm32l011f4p6.glb",
      "model_3d_step": "stm32l011f4p6-etched.step",
      "model_3d_step_plain": "stm32l011f4p6.step",
      "lbr": "stm32l011f4p6.lbr"
    },
    "distributor_links": {
      "digikey": "497-17477-ND",
      "lcsc": "C87903"
    },
    "pins": [
      {
        "number": "1",
        "name": "PB9/BOOT0",
        "type": "input",
        "description": "Boot-mode select input (B-type). After reset acts as BOOT0; system boots from user Flash, system memory, or SRAM depending on BOOT0 level sampled at reset. Also available as PB9 GPIO after reset if BOOT0 remapped via option bytes."
      },
      {
        "number": "2",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5V-tolerant I/O (FT). Additional function: LSE 32.768 kHz crystal oscillator input (OSC32_IN). Doubles as PC14 GPIO when LSE not used."
      },
      {
        "number": "3",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC). Additional function: LSE 32.768 kHz crystal oscillator output (OSC32_OUT). Doubles as PC15 GPIO when LSE not used."
      },
      {
        "number": "4",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Device reset input, active low, with internal weak pull-up (RST type). Also driven low internally to signal an internal reset source. Pull externally low >20 us to force reset."
      },
      {
        "number": "5",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply for ADC, comparators, reset block, PLL, and internal voltage reference. Must equal or exceed VDD; range 1.65 V-3.6 V. Decouple to VSS with 100 nF + 1 uF close to the pin."
      },
      {
        "number": "6",
        "name": "PA0-CK_IN",
        "type": "bidirectional",
        "description": "3.3 V ADC-tolerant I/O (TTa). Alt functions: USART2_RX/CTS, LPTIM1_IN1, TIM2_CH1/ETR, LPUART1_RX, COMP1_OUT. Additional: COMP1_INM, ADC_IN0, RTC_TAMP2/WKUP1, CK_IN (external clock in)."
      },
      {
        "number": "7",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5V-tolerant I/O (FT). Alt functions: EVENTOUT, LPTIM1_IN2, TIM2_CH2, I2C1_SMBA, USART2_RTS, TIM21_ETR, LPUART1_TX. Additional: COMP1_INP, ADC_IN1."
      },
      {
        "number": "8",
        "name": "PA2",
        "type": "bidirectional",
        "description": "3.3 V ADC-tolerant I/O (TTa). Alt functions: TIM21_CH1, TIM2_CH3, USART2_TX, LPUART1_TX, COMP2_OUT. Additional: COMP2_INM, ADC_IN2, RTC_TAMP3/RTC_TS/RTC_OUT/WKUP3."
      },
      {
        "number": "9",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5V-tolerant I/O (FT). Alt functions: TIM21_CH2, TIM2_CH4, USART2_RX, LPUART1_RX. Additional: COMP2_INP, ADC_IN3."
      },
      {
        "number": "10",
        "name": "PA4",
        "type": "bidirectional",
        "description": "3.3 V ADC-tolerant I/O (TTa). Alt functions: SPI1_NSS, LPTIM1_IN1/ETR, I2C1_SCL, USART2_CK, TIM2_ETR, LPUART1_TX, COMP2_OUT. Additional: COMP1_INM, COMP2_INM, ADC_IN4."
      },
      {
        "number": "11",
        "name": "PA5",
        "type": "bidirectional",
        "description": "3.3 V ADC-tolerant I/O (TTa). Alt functions: SPI1_SCK, LPTIM1_IN2, TIM2_ETR, TIM2_CH1. Additional: COMP1_INM, COMP2_INM, ADC_IN5."
      },
      {
        "number": "12",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5V-tolerant I/O (FT). Alt functions: SPI1_MISO, LPTIM1_ETR, LPUART1_CTS, EVENTOUT, COMP1_OUT. Additional: ADC_IN6."
      },
      {
        "number": "13",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5V-tolerant I/O (FT). Alt functions: SPI1_MOSI, LPTIM1_OUT, USART2_CTS, TIM21_ETR, EVENTOUT, COMP2_OUT. Additional: COMP2_INP, ADC_IN7."
      },
      {
        "number": "14",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5V-tolerant I/O (FT). Alt functions: USART2_CK, SPI1_MOSI, LPTIM1_IN1, LPUART1_RTS, TIM2_CH4. Additional: ADC_IN9, VREF_OUT."
      },
      {
        "number": "15",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital and analog ground reference (0 V). Tie to system ground plane; footnote 5 confirms this pin serves both digital and analog return."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Main digital supply, 1.65 V-3.6 V. Powers I/Os and internal regulator. Decouple to VSS with 100 nF close to the pin."
      },
      {
        "number": "17",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5V-tolerant Fm+ I/O (FTf). Alt functions: MCO clock output, I2C1_SCL, LPTIM1_OUT, USART2_TX, TIM21_CH2, COMP1_OUT."
      },
      {
        "number": "18",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5V-tolerant Fm+ I/O (FTf). Alt functions: TIM21_CH1, I2C1_SDA, RTC_REFIN, USART2_RX, TIM2_CH3, COMP1_OUT."
      },
      {
        "number": "19",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5V-tolerant Fm+ I/O (FTf). Default after reset: SWDIO (serial-wire debug data). Alt functions: SWDIO, LPTIM1_ETR, I2C1_SDA, SPI1_SCK, LPUART1_RX, COMP1_OUT."
      },
      {
        "number": "20",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5V-tolerant I/O (FT). Default after reset: SWCLK (serial-wire debug clock). Alt functions: SWCLK, LPTIM1_OUT, I2C1_SMBA, USART2_TX, SPI1_MISO, LPUART1_TX, COMP2_OUT."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/stm32l011f4p6.pdf",
        "pages": 115,
        "sha256": "d598d4dcb828e7dc",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.8625,
        -2.925
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TSSOP-20_4.4x6.5mm_P0.65mm@sha256:b7ca3a31dd45c122",
      "mark": "drawn"
    },
    "mcu": {
      "part_number": "STM32L011F4P6",
      "series": "STM32L0",
      "subfamily": "STM32L011",
      "core": "Arm Cortex-M0+",
      "frequency_mhz": 32,
      "flash_kb": 16,
      "ram_kb": 2,
      "io_count": 16,
      "package": "TSSOP-20",
      "marketing_status": "Active",
      "fpu": null,
      "supply_v_min": 1.65,
      "supply_v_max": 3.6,
      "temp_min_c": -40,
      "temp_max_c": 85,
      "adc_count": 1,
      "timers": 2,
      "in_distributor_stock": true,
      "product_folder": "/en/microcontrollers-microprocessors/stm32l011f4.html",
      "source": "st.com portfolio grid CL1734"
    },
    "models_3d": [
      {
        "file": "stm32l011f4p6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32l011f4p6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7208f508796eb5da4ee292b77c75c60e77db831256f3be7b44de814d721468d8",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Core": "Arm Cortex-M0+",
      "Max clock": "32 MHz",
      "Flash": "16 kB",
      "RAM": "2 kB",
      "I/O pins": 16,
      "ADC units": 1,
      "ST status": "Active",
      "Manufacturer": "STMicroelectronics",
      "Package": "TSSOP-20",
      "Category": "MCU",
      "Pins": "20"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "stm32l011f4p6"
  ],
  "discovery_pitch": "STM32L011F4P6 (STMicroelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32l011f4p6.kicad_sym",
    "stm32l011f4p6.kicad_mod",
    "stm32l011f4p6.glb",
    "stm32l011f4p6.step",
    "stm32l011f4p6-etched.step",
    "stm32l011f4p6.lbr",
    "docs/hero.png",
    "docs/stm32l011f4p6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "STM32L011F4P6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6F3P6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6G4U6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6G3U6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6D4P6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6D3P6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6E4U6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6E3U6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6K4U6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6K3U6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6K4T6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6K3T6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6E4Y6",
      "kind": "packaging"
    },
    {
      "mpn": "STM32L011F4P6E3Y6",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T08:52:42.772Z"
}