ATSAM3X8EA-AU

{
  "schema_version": 1,
  "type": "component",
  "slug": "atsam3x8ea-au",
  "title": "ATSAM3X8EA-AU",
  "brief": "Microchip Tech ATMEL & AVR, LQFP-144(20x20). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.1",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "atsam3x8ea-au",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATSAM3X8EA-AU",
    "manufacturer": "Microchip Tech",
    "package": "LQFP-144(20x20)",
    "pin_count": 144,
    "category": "Embedded Processors & Controllers",
    "subcategory": "ATMEL & AVR",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/89ae15ab595f43aead19bb213686085c.pdf",
    "parts": {
      "symbol": "atsam3x8ea-au.kicad_sym",
      "footprint": "atsam3x8ea-au.kicad_mod",
      "model_3d": "atsam3x8ea-au-hero.glb",
      "model_3d_plain": "atsam3x8ea-au.glb",
      "model_3d_step": "atsam3x8ea-au-etched.step",
      "model_3d_step_plain": "atsam3x8ea-au.step",
      "lbr": "atsam3x8ea-au.lbr"
    },
    "distributor_links": {
      "lcsc": "C79305",
      "digikey": "ATSAM3X8EA-AU-ND",
      "mouser": "556-ATSAM3X8EA-AU"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T15:59:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATSAM3X8EA-AU-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "556-ATSAM3X8EA-AU",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PB26",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "2",
        "name": "PA9",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "3",
        "name": "PA10",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "4",
        "name": "PA11",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "5",
        "name": "PA12",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "6",
        "name": "PA13",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "7",
        "name": "PA14",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "8",
        "name": "PA15",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "9",
        "name": "PA17",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "10",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Powers the core, embedded memories and peripherals; voltage range 1.62V to 1.95V."
      },
      {
        "number": "11",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the peripheral I/O lines; voltage range 1.62V to 3.6V."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground common to the VDDCORE and VDDIO power supplies."
      },
      {
        "number": "13",
        "name": "PD0",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "14",
        "name": "PD1",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "15",
        "name": "PD2",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "16",
        "name": "PD3",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "17",
        "name": "PD4",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "18",
        "name": "PD5",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "19",
        "name": "PD6",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "20",
        "name": "PD7",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "21",
        "name": "PD8",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "22",
        "name": "PD9",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "23",
        "name": "PA0",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "24",
        "name": "PA1",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "25",
        "name": "PA5",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "26",
        "name": "PA7",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "27",
        "name": "PA8",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "28",
        "name": "PB28",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "29",
        "name": "PB29",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "30",
        "name": "PB30",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "31",
        "name": "PB31",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "32",
        "name": "PD10",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "33",
        "name": "GNDPLL",
        "type": "power_in",
        "description": "Separate ground for the VDDPLL supply."
      },
      {
        "number": "34",
        "name": "VDDPLL",
        "type": "power_in",
        "description": "Powers PLL A, UPLL and the 3-20 MHz oscillator; voltage range 1.62V to 1.95V."
      },
      {
        "number": "35",
        "name": "XOUT",
        "type": "output",
        "description": "Output of the 3 to 20 MHz crystal or ceramic oscillator."
      },
      {
        "number": "36",
        "name": "XIN",
        "type": "input",
        "description": "Input of the 3 to 20 MHz crystal or ceramic oscillator."
      },
      {
        "number": "37",
        "name": "DHSDP",
        "type": "bidirectional",
        "description": "USB High Speed Data plus line, powered from VDDUTMI."
      },
      {
        "number": "38",
        "name": "DHSDM",
        "type": "bidirectional",
        "description": "USB High Speed Data minus line, powered from VDDUTMI."
      },
      {
        "number": "39",
        "name": "VBUS",
        "type": "power_in",
        "description": "USB bus power measurement port."
      },
      {
        "number": "40",
        "name": "VBG",
        "type": "passive",
        "description": "Listed in the 144-lead pinout; no function is given in the provided pages."
      },
      {
        "number": "41",
        "name": "VDDUTMI",
        "type": "power_in",
        "description": "Powers the UTMI+ interface; voltage range 3.0V to 3.6V, 3.3V nominal."
      },
      {
        "number": "42",
        "name": "DFSDP",
        "type": "bidirectional",
        "description": "USB Full Speed Data plus line, powered from VDDUTMI."
      },
      {
        "number": "43",
        "name": "DFSDM",
        "type": "bidirectional",
        "description": "USB Full Speed Data minus line, powered from VDDUTMI."
      },
      {
        "number": "44",
        "name": "GNDUTMI",
        "type": "power_in",
        "description": "Separate ground for the VDDUTMI supply."
      },
      {
        "number": "45",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Powers the core, embedded memories and peripherals; voltage range 1.62V to 1.95V."
      },
      {
        "number": "46",
        "name": "JTAGSEL",
        "type": "input",
        "description": "JTAG selection pin; no further function is given in the provided pages."
      },
      {
        "number": "47",
        "name": "NRSTB",
        "type": "input",
        "description": "Listed in the 144-lead pinout; no further function or limits are given in the provided pages."
      },
      {
        "number": "48",
        "name": "XIN32",
        "type": "input",
        "description": "Input of the 32.768 kHz slow clock crystal oscillator."
      },
      {
        "number": "49",
        "name": "XOUT32",
        "type": "output",
        "description": "Output of the 32.768 kHz slow clock crystal oscillator."
      },
      {
        "number": "50",
        "name": "SHDN",
        "type": "input",
        "description": "Listed in the 144-lead pinout; the provided pages give no pin-level function beyond the regulator Shutdown mode."
      },
      {
        "number": "51",
        "name": "TST",
        "type": "input",
        "description": "Test pin; the provided pages give no function or limits."
      },
      {
        "number": "52",
        "name": "VDDBU",
        "type": "power_in",
        "description": "Powers the slow clock oscillator and part of the System Controller; 1.62V to 3.6V, and must be supplied before or at the same time as VDDIO and VDDCORE."
      },
      {
        "number": "53",
        "name": "FWUP",
        "type": "input",
        "description": "Fast wake-up input feeding the Fast Startup sources; no electrical limits are given."
      },
      {
        "number": "54",
        "name": "GNDBU",
        "type": "power_in",
        "description": "Separate ground for the VDDBU supply."
      },
      {
        "number": "55",
        "name": "PC1",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "56",
        "name": "VDDOUT",
        "type": "power_out",
        "description": "Output of the internal voltage regulator; the default output voltage is 1.80V."
      },
      {
        "number": "57",
        "name": "VDDIN",
        "type": "power_in",
        "description": "Powers the voltage regulator; no voltage range is given in the provided pages."
      },
      {
        "number": "58",
        "name": "GND",
        "type": "power_in",
        "description": "Ground common to the VDDCORE and VDDIO power supplies."
      },
      {
        "number": "59",
        "name": "PC2",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "60",
        "name": "PC3",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "61",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Powers the core, embedded memories and peripherals; voltage range 1.62V to 1.95V."
      },
      {
        "number": "62",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the peripheral I/O lines; voltage range 1.62V to 3.6V."
      },
      {
        "number": "63",
        "name": "PC5",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "64",
        "name": "PC6",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "65",
        "name": "PC7",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "66",
        "name": "PC8",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "67",
        "name": "PC9",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "68",
        "name": "PB27",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "69",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Reset pin; the Reset Controller shapes a reset signal for external devices and allows a push-button connection."
      },
      {
        "number": "70",
        "name": "PA18",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "71",
        "name": "PA19",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "72",
        "name": "PA20",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "73",
        "name": "VDDANA",
        "type": "power_in",
        "description": "Powers the ADC and DAC cells; voltage range 2.0V to 3.6V."
      },
      {
        "number": "74",
        "name": "GNDANA",
        "type": "power_in",
        "description": "Separate ground for the VDDANA supply."
      },
      {
        "number": "75",
        "name": "ADVREF",
        "type": "input",
        "description": "ADC and DAC reference voltage input."
      },
      {
        "number": "76",
        "name": "PB15",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "77",
        "name": "PB16",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "78",
        "name": "PA16",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "79",
        "name": "PA24",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "80",
        "name": "PA23",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "81",
        "name": "PA22",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "82",
        "name": "PA6",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "83",
        "name": "PA4",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "84",
        "name": "PA3",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "85",
        "name": "PA2",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "86",
        "name": "PB12",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "87",
        "name": "PB13",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "88",
        "name": "PB17",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "89",
        "name": "PB18",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "90",
        "name": "PB19",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "91",
        "name": "PB20",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "92",
        "name": "PB21",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "93",
        "name": "PC11",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "94",
        "name": "PC12",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "95",
        "name": "PC13",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "96",
        "name": "PC14",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "97",
        "name": "PC15",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "98",
        "name": "PC16",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "99",
        "name": "PC17",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "100",
        "name": "PC18",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "101",
        "name": "PC19",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "102",
        "name": "PC29",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "103",
        "name": "PC30",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "104",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Powers the core, embedded memories and peripherals; voltage range 1.62V to 1.95V."
      },
      {
        "number": "105",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the peripheral I/O lines; voltage range 1.62V to 3.6V."
      },
      {
        "number": "106",
        "name": "GND",
        "type": "power_in",
        "description": "Ground common to the VDDCORE and VDDIO power supplies."
      },
      {
        "number": "107",
        "name": "PA21",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "108",
        "name": "PA25",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "109",
        "name": "PA26",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "110",
        "name": "PA27",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "111",
        "name": "PA28",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "112",
        "name": "PA29",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "113",
        "name": "PB0",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "114",
        "name": "PB1",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "115",
        "name": "PB2",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "116",
        "name": "PC4",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "117",
        "name": "PC10",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "118",
        "name": "PB3",
        "type": "bidirectional",
        "description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
      },
      {
        "number": "119",
        "name": "PB4",
        "type": "bidirectional",
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        "number": "130",
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