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Ray Set visibility: public 262c4c1
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{
  "schema_version": 1,
  "type": "component",
  "slug": "atsamc21n18a-an",
  "title": "ATSAMC21N18A-AN",
  "brief": "Microchip Tech Pre-ordered MCUs, TQFP-100(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "atsamc21n18a-an",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATSAMC21N18A-AN",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-100(14x14)",
    "pin_count": 100,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7ca0693ab79435b34d08da2f9e2ec965.pdf",
    "parts": {
      "symbol": "atsamc21n18a-an.kicad_sym",
      "footprint": "atsamc21n18a-an.kicad_mod",
      "model_3d": "atsamc21n18a-an-hero.glb",
      "model_3d_plain": "atsamc21n18a-an.glb",
      "model_3d_step": "atsamc21n18a-an-etched.step",
      "model_3d_step_plain": "atsamc21n18a-an.step",
      "lbr": "atsamc21n18a-an.lbr"
    },
    "distributor_links": {
      "lcsc": "C1340765",
      "digikey": "150-ATSAMC21N18A-AN-ND",
      "mouser": "556-ATSAMC21N18A-AN"
    },
    "distributor_check": {
      "checked_at": "2026-11-13T15:49:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "150-ATSAMC21N18A-AN-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "556-ATSAMC21N18A-AN",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PA00",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply, EXTINT[0], SERCOM1/PAD[0], TC2/WO[0]; also XIN32 for the 32.768 kHz crystal."
      },
      {
        "number": "2",
        "name": "PA01",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply, EXTINT[1], SERCOM1/PAD[1], TC2/WO[1]; also XOUT32 for the 32.768 kHz crystal."
      },
      {
        "number": "3",
        "name": "PC00",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[8] and ADC1 AIN[8]."
      },
      {
        "number": "4",
        "name": "PC01",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[9] and ADC1 AIN[9]."
      },
      {
        "number": "5",
        "name": "PC02",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[10] and ADC1 AIN[10]."
      },
      {
        "number": "6",
        "name": "PC03",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[11], ADC1 AIN[11], SERCOM7/PAD[0], TCC2/WO[0]."
      },
      {
        "number": "7",
        "name": "PA02",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[2], ADC0 AIN[0], ADC1 AIN[4], PTC Y[0], DAC VOUT."
      },
      {
        "number": "8",
        "name": "PA03",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[3], ADC-DAC VREFA, ADC0 AIN[1], PTC Y[1]."
      },
      {
        "number": "9",
        "name": "PB04",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[4], ADC0 AIN[6], ADC1 AIN[5], PTC Y[10]."
      },
      {
        "number": "10",
        "name": "PB05",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[5], ADC0 AIN[7], ADC1 AIN[6], PTC Y[11]."
      },
      {
        "number": "11",
        "name": "GNDANA",
        "type": "power_in",
        "description": "Analog ground, the return for the VDDANA supply."
      },
      {
        "number": "12",
        "name": "VDDANA",
        "type": "power_in",
        "description": "Analog supply input, 2.7V to 5.5V device operating range."
      },
      {
        "number": "13",
        "name": "PB06",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[6], ADC0 AIN[8], SDADC AINN[2], ADC1 AIN[7], PTC Y[12], SERCOM7/PAD[1]."
      },
      {
        "number": "14",
        "name": "PB07",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[7], ADC0 AIN[9], SDADC AINP[2], PTC Y[13], SERCOM7 PAD[3]/PAD[2]."
      },
      {
        "number": "15",
        "name": "PB08",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[8], ADC0 AIN[2], ADC1 AIN[4], SDADC AINN[1], PTC Y[14], TC4/WO[0]."
      },
      {
        "number": "16",
        "name": "PB09",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[9], ADC0 AIN[3], ADC1 AIN[5], SDADC AINP[1], PTC Y[15], SERCOM4/PAD[1], TC4/WO[1]."
      },
      {
        "number": "17",
        "name": "PA04",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[4], SDADC VREFB, ADC0 AIN[4], ADC1 AIN[0], PTC Y[2], SERCOM0/PAD[0]."
      },
      {
        "number": "18",
        "name": "PA05",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[5], ADC0 AIN[5], ADC1 AIN[1], PTC Y[3], SERCOM0/PAD[1]."
      },
      {
        "number": "19",
        "name": "PA06",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[6], ADC0 AIN[6], SDADC AINN[0], ADC1 AIN[2], PTC Y[4], SERCOM0/PAD[2]."
      },
      {
        "number": "20",
        "name": "PA07",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[7], ADC0 AIN[7], SDADC AINP[0], ADC1 AIN[3], PTC Y[5], SERCOM0/PAD[3]."
      },
      {
        "number": "21",
        "name": "PC05",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[13], SERCOM6/PAD[3], TCC2/WO[1]."
      },
      {
        "number": "22",
        "name": "PC06",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[14], SERCOM6/PAD[0]."
      },
      {
        "number": "23",
        "name": "PC07",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[15], SERCOM6/PAD[1]."
      },
      {
        "number": "24",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the I/O cluster supplied by VDDIO pin 25."
      },
      {
        "number": "25",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply input, 2.7V to 5.5V device operating range."
      },
      {
        "number": "26",
        "name": "PA08",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with NMI, ADC0 AIN[10], PTC X[0]/Y[16], SERCOM0/PAD[0], SERCOM2/PAD[0], TCC0/WO[0]; supports I2C."
      },
      {
        "number": "27",
        "name": "PA09",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[9], ADC0 AIN[11], PTC X[1]/Y[17], SERCOM0/PAD[1], SERCOM2/PAD[1], TCC0/WO[1]; supports I2C."
      },
      {
        "number": "28",
        "name": "PA10",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[10], PTC X[2]/Y[18], SERCOM0/PAD[2], SERCOM2/PAD[2], TCC0/WO[2], GCLK_IO[4]."
      },
      {
        "number": "29",
        "name": "PA11",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[11], PTC X[3]/Y[19], SERCOM0/PAD[3], SERCOM2/PAD[3], TCC0/WO[3], GCLK_IO[5]."
      },
      {
        "number": "30",
        "name": "PB10",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[10], SERCOM4/PAD[2], TC5/WO[0], TCC0 WO4, GCLK_IO[4]."
      },
      {
        "number": "31",
        "name": "PB11",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[11], SERCOM4/PAD[3], TC5/WO[1], TCC0 WO5, GCLK_IO[5]."
      },
      {
        "number": "32",
        "name": "PB12",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[12], PTC X[12]/Y[28], SERCOM4/PAD[0], TCC0 WO6, CAN1/TX; supports I2C."
      },
      {
        "number": "33",
        "name": "PB13",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[13], PTC X[13]/Y[29], SERCOM4/PAD[1], TCC0 WO7, CAN1/RX; supports I2C."
      },
      {
        "number": "34",
        "name": "PB14",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[14], PTC X[14]/Y[30], SERCOM4/PAD[2], CAN1/TX, GCLK_IO[0]."
      },
      {
        "number": "35",
        "name": "PB15",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[15], PTC X[15]/Y[31], SERCOM4/PAD[3], CAN1/RX, GCLK_IO[1]."
      },
      {
        "number": "36",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply input, 2.7V to 5.5V device operating range."
      },
      {
        "number": "37",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the I/O clusters supplied by VDDIO pins 36 and 25."
      },
      {
        "number": "38",
        "name": "PC08",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[0], SERCOM6/PAD[0], SERCOM7/PAD[0]."
      },
      {
        "number": "39",
        "name": "PC09",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[1], SERCOM6/PAD[1], SERCOM7/PAD[1]."
      },
      {
        "number": "40",
        "name": "PC10",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[2], SERCOM6/PAD[2], SERCOM7/PAD[2]."
      },
      {
        "number": "41",
        "name": "PC11",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[3], SERCOM6/PAD[3], SERCOM7/PAD[3]."
      },
      {
        "number": "42",
        "name": "PC12",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[4], SERCOM7/PAD[0]."
      },
      {
        "number": "43",
        "name": "PC13",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[5], SERCOM7/PAD[1]."
      },
      {
        "number": "44",
        "name": "PC14",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[6], SERCOM7/PAD[2]."
      },
      {
        "number": "45",
        "name": "PC15",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[7], SERCOM7/PAD[3]."
      },
      {
        "number": "46",
        "name": "PA12",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[12], SERCOM2/PAD[0], SERCOM4/PAD[0], TC2/WO[0], TCC0 WO6, AC CMP[0]."
      },
      {
        "number": "47",
        "name": "PA13",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[13], SERCOM2/PAD[1], SERCOM4/PAD[1], TC2/WO[1], TCC0 WO7, AC CMP[1]."
      },
      {
        "number": "48",
        "name": "PA14",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[14], SERCOM2/PAD[2], TC3/WO[0], GCLK_IO[0]; also XIN for the crystal oscillator."
      },
      {
        "number": "49",
        "name": "PA15",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[15], SERCOM2/PAD[3], TC3/WO[1], GCLK_IO[1]; also XOUT for the crystal oscillator."
      },
      {
        "number": "50",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the I/O clusters supplied by VDDIO pins 51 and 36."
      },
      {
        "number": "51",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply input, 2.7V to 5.5V device operating range."
      },
      {
        "number": "52",
        "name": "PA16",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[0], PTC X[4]/Y[20], SERCOM1/PAD[0], SERCOM3/PAD[0], TCC1/WO[0], GCLK_IO[2]; supports I2C."
      },
      {
        "number": "53",
        "name": "PA17",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[1], PTC X[5]/Y[21], SERCOM1/PAD[1], SERCOM3/PAD[1], TCC1/WO[1], GCLK_IO[3]; supports I2C."
      },
      {
        "number": "54",
        "name": "PA18",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[2], PTC X[6]/Y[22], SERCOM1/PAD[2], SERCOM3/PAD[2], TCC1/WO[2], AC CMP[0]."
      },
      {
        "number": "55",
        "name": "PA19",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[3], PTC X[7]/Y[23], SERCOM1/PAD[3], SERCOM3/PAD[3], TCC1/WO[3], AC CMP[1]."
      },
      {
        "number": "56",
        "name": "PC16",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[8], SERCOM6/PAD[0]."
      },
      {
        "number": "57",
        "name": "PC17",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[9], SERCOM6/PAD[1]."
      },
      {
        "number": "58",
        "name": "PC18",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[10], SERCOM6/PAD[2]."
      },
      {
        "number": "59",
        "name": "PC19",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[11], SERCOM6/PAD[3]."
      },
      {
        "number": "60",
        "name": "PC20",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[12] and CCL3/IN[9]."
      },
      {
        "number": "61",
        "name": "PC21",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[13] and CCL3/IN[10]."
      },
      {
        "number": "62",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the I/O clusters supplied by VDDIO pins 63 and 51."
      },
      {
        "number": "63",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply input, 2.7V to 5.5V device operating range."
      },
      {
        "number": "64",
        "name": "PB16",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[0], SERCOM5/PAD[0], TC6/WO[0], GCLK_IO[2]; supports I2C."
      },
      {
        "number": "65",
        "name": "PB17",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[1], SERCOM5/PAD[1], TC6/WO[1], GCLK_IO[3]; supports I2C."
      },
      {
        "number": "66",
        "name": "PB18",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[2], SERCOM5/PAD[2], SERCOM3/PAD[2], GCLK_IO[4]."
      },
      {
        "number": "67",
        "name": "PB19",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[3], SERCOM5/PAD[3], SERCOM3/PAD[3], GCLK_IO[5]."
      },
      {
        "number": "68",
        "name": "PB20",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[4], SERCOM3/PAD[0], SERCOM2/PAD[0], GCLK_IO[6]."
      },
      {
        "number": "69",
        "name": "PB21",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[5], SERCOM3/PAD[1], SERCOM2/PAD[1], GCLK_IO[7]."
      },
      {
        "number": "70",
        "name": "PA20",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[4], PTC X[8]/Y[24], SERCOM5/PAD[2], SERCOM3/PAD[2], TC7/WO[0], TCC2/WO[0]."
      },
      {
        "number": "71",
        "name": "PA21",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[5], PTC X[9]/Y[25], SERCOM5/PAD[3], SERCOM3/PAD[3], TC7/WO[1], TCC2/WO[1]."
      },
      {
        "number": "72",
        "name": "PA22",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[6], PTC X[10]/Y[26], SERCOM3/PAD[0], SERCOM5/PAD[0], TC4/WO[0], CAN0/TX."
      },
      {
        "number": "73",
        "name": "PA23",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[7], PTC X[11]/Y[27], SERCOM3/PAD[1], SERCOM5/PAD[1], TC4/WO[1], CAN0/RX."
      },
      {
        "number": "74",
        "name": "PA24",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[12], SERCOM3/PAD[2], SERCOM5/PAD[2], TC5/WO[0], TCC2/WO[0], CAN0/TX, AC CMP[2]."
      },
      {
        "number": "75",
        "name": "PA25",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[13], SERCOM3/PAD[3], SERCOM5/PAD[3], TC5/WO[1], TCC2/WO[1], CAN0/RX, AC CMP[3]."
      },
      {
        "number": "76",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the I/O cluster supplied by VDDIO pin 77."
      },
      {
        "number": "77",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply input, 2.7V to 5.5V device operating range."
      },
      {
        "number": "78",
        "name": "PB22",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[6], SERCOM0/PAD[2], SERCOM5/PAD[2], TC7/WO[0], TCC1/WO[2], GCLK_IO[0]."
      },
      {
        "number": "79",
        "name": "PB23",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[7], SERCOM0/PAD[3], SERCOM5/PAD[3], TC7/WO[1], TCC1/WO[3], GCLK_IO[1]."
      },
      {
        "number": "80",
        "name": "PB24",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[8], SERCOM0/PAD[0], SERCOM4/PAD[0], AC CMP[0]."
      },
      {
        "number": "81",
        "name": "PB25",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[9], SERCOM0/PAD[1], SERCOM4/PAD[1], AC CMP[1]."
      },
      {
        "number": "82",
        "name": "PC24",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[0], SERCOM0/PAD[2], SERCOM4/PAD[2]."
      },
      {
        "number": "83",
        "name": "PC25",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[1], SERCOM0/PAD[3], SERCOM4/PAD[3]."
      },
      {
        "number": "84",
        "name": "PC26",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[2]."
      },
      {
        "number": "85",
        "name": "PC27",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[3], SERCOM1/PAD[0], CCL1/IN[4]."
      },
      {
        "number": "86",
        "name": "PC28",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIO supply with EXTINT[4], SERCOM1/PAD[1], CCL1/IN[5]."
      },
      {
        "number": "87",
        "name": "PA27",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIN supply with EXTINT[15] and GCLK_IO[0]."
      },
      {
        "number": "88",
        "name": "RESET",
        "type": "input",
        "description": "Active-low external reset input."
      },
      {
        "number": "89",
        "name": "PA28",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIN supply with EXTINT[8] and GCLK_IO[0]."
      },
      {
        "number": "90",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the I/O cluster supplied by VDDIN pin 92."
      },
      {
        "number": "91",
        "name": "VDDCORE",
        "type": "power_out",
        "description": "Regulated core supply output."
      },
      {
        "number": "92",
        "name": "VDDIN",
        "type": "power_in",
        "description": "Input supply to the internal regulator and VDDIN I/O cluster, 2.7V to 5.5V device operating range."
      },
      {
        "number": "93",
        "name": "PA30",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIN supply with EXTINT[10], SERCOM1/PAD[2], TC1/WO[0]; SWCLK for Serial Wire Debug."
      },
      {
        "number": "94",
        "name": "PA31",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIN supply with EXTINT[11], SERCOM1/PAD[3], TC1/WO[1]; SWDIO for Serial Wire Debug."
      },
      {
        "number": "95",
        "name": "PB30",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIN supply with EXTINT[14], SERCOM1/PAD[0], SERCOM5/PAD[0], TC0/WO[0], AC CMP[2]."
      },
      {
        "number": "96",
        "name": "PB31",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDIN supply with EXTINT[15], SERCOM1/PAD[1], SERCOM5/PAD[1], TC0/WO[1], AC CMP[3]."
      },
      {
        "number": "97",
        "name": "PB00",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[0], ADC0 AIN[0], PTC Y[6], SERCOM5/PAD[2], TC7/WO[0]."
      },
      {
        "number": "98",
        "name": "PB01",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[1], ADC0 AIN[1], PTC Y[7], SERCOM5/PAD[3], TC7/WO[1]."
      },
      {
        "number": "99",
        "name": "PB02",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[2], ADC0 AIN[2], PTC Y[8], SERCOM5/PAD[0], TC6/WO[0]."
      },
      {
        "number": "100",
        "name": "PB03",
        "type": "bidirectional",
        "description": "General-purpose I/O on VDDANA supply with EXTINT[3], ADC0 AIN[3], PTC Y[9], SERCOM5/PAD[1], TC6/WO[1]."
      }
    ],
    "provenance": {
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          "extractor flagged: The TQFP100 pinout drawing (page 25) lists names without a readable pin-number mapping. I took I/O p; RESET and VDDCORE are not numbered in any text table. I inferred 88 for RESET and 91 for VDDCORE bec; The datasheet gives no per-pin electrical limits for the power pins other than the 2.7V–5.5V device "
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        "pages": 1206,
        "sha256": "5991eaad10c5cd35",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "described": 100,
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        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    ],
    "package_dims": {
      "package_code": "PF",
      "source_page": 1128,
      "D": {
        "nom_mm": 14,
        "range_mm": [
          null,
          null
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      },
      "E1": {
        "nom_mm": 14,
        "range_mm": [
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      "E": {
        "nom_mm": 16,
        "range_mm": [
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      "e": {
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      "A": {
        "nom_mm": 1.2,
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      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "atsamc21n18a-an.step",
        "verdict": "PASS",
        "reasons": [
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        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TQFP-100(14x14)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "100"
    },
    "appearance": {
      "contacts": {
        "quote": "including indium tin oxide (ITO) sensor grids. The PTC requires one pin per X-line and one pin per Y-line. In the Self Capacitance mode, the PTC requires only one pin (Y-line) for each touch sensor.",
        "page": 987,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "housing": {
        "quote": "10.3. Micro Trace Buffer MTB base address corrected from 0x41006000 to 0x41008000. 22. SUPC – Supply Controller 22.6.3.3. VDD Brown-Out Detector (BODVDD): Removed",
        "page": 1198,
        "doc": "ds.pdf",
        "material": "PC"
      },
      "version": 1,
      "datasheet_sha256": "5991eaad10c5cd3555f61fe072f9466b16bf554c42746cc968d345ce91be908e"
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    "characteristics": {
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          "name": "Supply voltage (VDDIN)",
          "symbol": "VDDIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "Powers I/O lines, OSC48M, TOSC and internal regulator; VDDIN and VDDANA must have the same voltage (VDD)",
          "source_page": 38,
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          "name": "I/O supply voltage (VDDIO)",
          "symbol": "VDDIO",
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          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "Powers I/O lines and XOSC; VDDIO must be less than or equal to VDDIN",
          "source_page": 38,
          "source": "datasheet"
        },
        {
          "name": "Analog supply voltage (VDDANA)",
          "symbol": "VDDANA",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "Powers I/O lines and ADC, AC, DAC, PTC, SDADC, OSCULP32K, OSC32K, XOSC32K",
          "source_page": 38,
          "source": "datasheet"
        },
        {
          "name": "Core voltage (internal regulator output)",
          "symbol": "VDDCORE",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": 1.2,
          "max": null,
          "conditions": "Internal regulated voltage output; powers core, memories, peripherals and FDPLL96M",
          "source_page": 38,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature, 105°C grade",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "Package grade N: -40 - 105°C Matte Sn Plating",
          "source_page": 18,
          "source": "datasheet"
        },
        {
          "name": "Operating supply range (family)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "Operating Conditions",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
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