main
Ray Set visibility: public 667dd87 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "atsamd20g18a-an",
  "title": "ATSAMD20G18A-AN",
  "brief": "Microchip Tech Pre-ordered MCUs, TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "embedded processors & controllers",
    "atsamd20g18a-an",
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  "component": {
    "mpn": "ATSAMD20G18A-AN",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-48(7x7)",
    "pin_count": 48,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a2c702daec7a8ec9b47b55571e821a90.pdf",
    "parts": {
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      "footprint": "atsamd20g18a-an.kicad_mod",
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      "model_3d_step_plain": "atsamd20g18a-an.step",
      "lbr": "atsamd20g18a-an.lbr"
    },
    "distributor_links": {
      "lcsc": "C1341595",
      "digikey": "ATSAMD20G18A-AN-ND",
      "mouser": "556-ATSAMD20G18A-AN"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T21:01:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATSAMD20G18A-AN-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "556-ATSAMD20G18A-AN",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PA00",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA00 (port A, bit 0); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "2",
        "name": "PA01",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA01 (port A, bit 1); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "3",
        "name": "PA02",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA02 (port A, bit 2); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "4",
        "name": "PA03",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA03 (port A, bit 3); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "5",
        "name": "GNDANA",
        "type": "power_in",
        "description": "Ground reference for the analog domain; the summary gives no voltage limit for this pin."
      },
      {
        "number": "6",
        "name": "VDDANA",
        "type": "power_in",
        "description": "Analog supply pin; the summary gives no separate limit for it, only the device operating range of 1.62V to 3.63V."
      },
      {
        "number": "7",
        "name": "PB08",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PB08 (port B, bit 8); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "8",
        "name": "PB09",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PB09 (port B, bit 9); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "9",
        "name": "PA04",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA04 (port A, bit 4); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "10",
        "name": "PA05",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA05 (port A, bit 5); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "11",
        "name": "PA06",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA06 (port A, bit 6); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "12",
        "name": "PA07",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA07 (port A, bit 7); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "13",
        "name": "PA08",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA08 (port A, bit 8); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "14",
        "name": "PA09",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA09 (port A, bit 9); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "15",
        "name": "PA10",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA10 (port A, bit 10); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "16",
        "name": "PA11",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA11 (port A, bit 11); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "17",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O supply pin for the digital pin ring; the summary gives no separate limit for it, only the device operating range of 1.62V to 3.63V."
      },
      {
        "number": "18",
        "name": "GND",
        "type": "power_in",
        "description": "Digital ground pin; the summary gives no further electrical limits for it."
      },
      {
        "number": "19",
        "name": "PB10",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PB10 (port B, bit 10); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "20",
        "name": "PB11",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PB11 (port B, bit 11); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "21",
        "name": "PA12",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA12 (port A, bit 12); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "22",
        "name": "PA13",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA13 (port A, bit 13); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "23",
        "name": "PA14",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA14 (port A, bit 14); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "24",
        "name": "PA15",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA15 (port A, bit 15); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "25",
        "name": "PA16",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA16 (port A, bit 16); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "26",
        "name": "PA17",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA17 (port A, bit 17); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "27",
        "name": "PA18",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA18 (port A, bit 18); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "28",
        "name": "PA19",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA19 (port A, bit 19); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "29",
        "name": "PA20",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA20 (port A, bit 20); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "30",
        "name": "PA21",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA21 (port A, bit 21); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "31",
        "name": "PA22",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA22 (port A, bit 22); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "32",
        "name": "PA23",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA23 (port A, bit 23); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "33",
        "name": "PA24",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA24 (port A, bit 24); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "34",
        "name": "PA25",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA25 (port A, bit 25); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "35",
        "name": "GND",
        "type": "power_in",
        "description": "Digital ground pin; the summary gives no further electrical limits for it."
      },
      {
        "number": "36",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O supply pin for the digital pin ring; the summary gives no separate limit for it, only the device operating range of 1.62V to 3.63V."
      },
      {
        "number": "37",
        "name": "PB22",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PB22 (port B, bit 22); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "38",
        "name": "PB23",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PB23 (port B, bit 23); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "39",
        "name": "PA27",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA27 (port A, bit 27); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "40",
        "name": "RESET",
        "type": "input",
        "description": "Reset pin as labeled in the pinout legend (RESET PIN); the summary gives no polarity, threshold or timing for it."
      },
      {
        "number": "41",
        "name": "PA28",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA28 (port A, bit 28); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "42",
        "name": "GND",
        "type": "power_in",
        "description": "Digital ground pin; the summary gives no further electrical limits for it."
      },
      {
        "number": "43",
        "name": "VDDCORE",
        "type": "power_out",
        "description": "Regulated core supply pin as labeled in the pinout legend (regulated output supply); the summary gives no output voltage or decoupling value."
      },
      {
        "number": "44",
        "name": "VDDIN",
        "type": "power_in",
        "description": "Input supply pin feeding the internal regulator; the summary gives no separate limit for it, only the device operating range of 1.62V to 3.63V."
      },
      {
        "number": "45",
        "name": "PA30",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA30 (port A, bit 30); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "46",
        "name": "PA31",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PA31 (port A, bit 31); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "47",
        "name": "PB02",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PB02 (port B, bit 2); the summary gives no electrical limits or alternate functions for this pin."
      },
      {
        "number": "48",
        "name": "PB03",
        "type": "bidirectional",
        "description": "General-purpose I/O pin PB03 (port B, bit 3); the summary gives no electrical limits or alternate functions for this pin."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "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: The pin number is missing from the extracted text on page 16. The label PA21 appears on its own line; The color legend that marks each pin as digital, analog, oscillator, ground, supply or reset is lost; VDDCORE is typed power_out because the legend says REGULATED OUTPUT SUPPLY. The per-pin color mappin"
        ],
        "pages_sent": 51,
        "cost_usd": 0.2111,
        "at": "2026-10-28T21:01:33"
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        "pages": 51,
        "sha256": "8b1a1ff73fd4e2e8",
        "source_tier": "mfr"
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        "described": 48,
        "cites_pages": true,
        "refuses_to_fabricate": true
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      "Manufacturer": "Microchip Tech",
      "Package": "TQFP-48(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "48"
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          "name": "Operating temperature, package grade N (-40 to 105 °C, matte Sn plating)",
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          "unit": "°C",
          "min": -40,
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          "unit": "°C/W",
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          "typ": 12.3,
          "max": null,
          "conditions": "48-pin TQFP",
          "source_page": 39,
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    "name": "Ray",
    "email": "[email protected]"
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