STM8L101F3U6ATR

{
  "slug": "stm8l101f3u6atr",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), UFQFPN-20(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm8l101f3u6atr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm8l101f3u6atr.kicad_sym",
    "stm8l101f3u6atr.kicad_mod",
    "stm8l101f3u6atr.glb",
    "stm8l101f3u6atr.step",
    "stm8l101f3u6atr.lbr",
    "docs/hero.png",
    "docs/stm8l101f3u6atr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm8l101f3u6atr-hero.glb",
    "stm8l101f3u6atr-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM8L101F3U6ATR",
    "manufacturer": "STMicroelectronics",
    "package": "UFQFPN-20(3x3)",
    "pin_count": 20,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181736245415936",
    "parts": {
      "symbol": "stm8l101f3u6atr.kicad_sym",
      "footprint": "stm8l101f3u6atr.kicad_mod",
      "model_3d": "stm8l101f3u6atr-hero.glb",
      "model_3d_plain": "stm8l101f3u6atr.glb",
      "model_3d_step": "stm8l101f3u6atr-etched.step",
      "model_3d_step_plain": "stm8l101f3u6atr.step",
      "lbr": "stm8l101f3u6atr.lbr"
    },
    "distributor_links": {
      "lcsc": "C111185",
      "mouser": "511-STM8L101F3U6ATR"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T22:49:39Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 540 calls left today"
      },
      "mouser": {
        "pn": "511-STM8L101F3U6ATR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NRST/PA1",
        "type": "bidirectional",
        "description": "Reset input with pull-up at power-up; as general-purpose PA1 it can only be configured as push-pull output, not as open-drain output or general-purpose input."
      },
      {
        "number": "2",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Port A2 general-purpose I/O with floating or weak pull-up input, external interrupt, 20 mA high sink/source (HS) capability, and open-drain or push-pull output."
      },
      {
        "number": "3",
        "name": "PA6/COMP_REF",
        "type": "bidirectional",
        "description": "Port A6 general-purpose I/O with 20 mA high sink/source capability, which on this variant is also the comparator external reference input COMP_REF."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground supply pin."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin; the device operating supply range is 1.65 V to 3.6 V."
      },
      {
        "number": "6",
        "name": "PD0/TIM3_CH2/COMP1_CH3",
        "type": "bidirectional",
        "description": "Port D0 high sink/source (20 mA) I/O with alternate functions Timer 3 channel 2 and Comparator 1 channel 3."
      },
      {
        "number": "7",
        "name": "PB0/TIM2_CH1/COMP1_CH1",
        "type": "bidirectional",
        "description": "Port B0 high sink/source (20 mA) I/O with alternate functions Timer 2 channel 1 and Comparator 1 channel 1; a pull-up is applied during reset and the pin is floating after reset release."
      },
      {
        "number": "8",
        "name": "PB1/TIM3_CH1/COMP1_CH2",
        "type": "bidirectional",
        "description": "Port B1 high sink/source (20 mA) I/O with alternate functions Timer 3 channel 1 and Comparator 1 channel 2."
      },
      {
        "number": "9",
        "name": "PB2/TIM2_CH2/COMP2_CH1",
        "type": "bidirectional",
        "description": "Port B2 high sink/source (20 mA) I/O with alternate functions Timer 2 channel 2 and Comparator 2 channel 1."
      },
      {
        "number": "10",
        "name": "PB3/TIM2_ETR/COMP2_CH2",
        "type": "bidirectional",
        "description": "Port B3 high sink/source (20 mA) I/O with alternate functions Timer 2 trigger input (ETR) and Comparator 2 channel 2."
      },
      {
        "number": "11",
        "name": "PB4/SPI_NSS",
        "type": "bidirectional",
        "description": "Port B4 high sink/source (20 mA) I/O with SPI master/slave select (NSS) alternate function; a pull-up is applied during reset and the pin is floating after reset release."
      },
      {
        "number": "12",
        "name": "PB5/SPI_SCK",
        "type": "bidirectional",
        "description": "Port B5 high sink/source (20 mA) I/O with SPI clock (SCK) alternate function."
      },
      {
        "number": "13",
        "name": "PB6/SPI_MOSI",
        "type": "bidirectional",
        "description": "Port B6 high sink/source (20 mA) I/O with SPI master out / slave in (MOSI) alternate function."
      },
      {
        "number": "14",
        "name": "PB7/SPI_MISO",
        "type": "bidirectional",
        "description": "Port B7 high sink/source (20 mA) I/O with SPI master in / slave out (MISO) alternate function."
      },
      {
        "number": "15",
        "name": "PC0/I2C_SDA",
        "type": "bidirectional",
        "description": "Port C0 true open-drain I/O carrying the I2C data line (I2C_SDA); no weak pull-up and no protection diode to VDD are implemented."
      },
      {
        "number": "16",
        "name": "PC1/I2C_SCL",
        "type": "bidirectional",
        "description": "Port C1 true open-drain I/O carrying the I2C clock line (I2C_SCL); no weak pull-up and no protection diode to VDD are implemented."
      },
      {
        "number": "17",
        "name": "PC2/USART_RX",
        "type": "bidirectional",
        "description": "Port C2 high sink/source (20 mA) I/O with USART receive (USART_RX) alternate function."
      },
      {
        "number": "18",
        "name": "PC3/USART_TX",
        "type": "bidirectional",
        "description": "Port C3 high sink/source (20 mA) I/O with USART transmit (USART_TX) alternate function."
      },
      {
        "number": "19",
        "name": "PC4/USART_CK/CCO",
        "type": "bidirectional",
        "description": "Port C4 high sink/source (20 mA) I/O with USART synchronous clock (USART_CK) and configurable clock output (CCO) alternate functions."
      },
      {
        "number": "20",
        "name": "PA0/SWIM/BEEP/IR_TIM",
        "type": "bidirectional",
        "description": "Port A0 I/O with 20 mA high sink/source capability and LED driver capability, in input pull-up during reset and after reset release; alternate functions SWIM input/output, BEEP output and IR_TIM infrared output."
      }
    ],
    "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: Variant selection: the 20-pin pinout for this MPN is Figure 3 (page 16), which covers STM8L101F1U6AT; Pin 3 is PA6/COMP_REF on this variant. Table 4 lists no PA3 pin for the COMP_REF 20-pin column, so P; Datasheet warning for COMP_REF devices: all ports available on 32-pin packages must be treated as ac"
        ],
        "pages_sent": 48,
        "cost_usd": 0.182,
        "at": "2026-10-09T22:49:26"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181736245415936",
        "pages": 88,
        "sha256": "c8e0b0d1f3c75a46",
        "source_tier": "lcsc"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "stm8l101f3u6atr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.6
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a041605a19c65d5b64ab4e3e43119fd04980a1a759efc863cad57c0ec653b22b",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm8l101f3u6atr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.6
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1c398c3133e7e70012908017e2bf552097faffa7b37f2a8e74f58d1b02292d54",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}