ATSAMD51G18A-MU

{
  "schema_version": 1,
  "type": "component",
  "slug": "atsamd51g18a-mu",
  "title": "ATSAMD51G18A-MU",
  "brief": "Microchip Tech Pre-ordered MCUs, QFN-48-EP(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",
    "atsamd51g18a-mu",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "ATSAMD51G18A-MU",
    "manufacturer": "Microchip Tech",
    "package": "QFN-48-EP(7x7)",
    "pin_count": 49,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9793a584e47269a20b87364d41b6eaa9.pdf",
    "parts": {
      "symbol": "atsamd51g18a-mu.kicad_sym",
      "footprint": "atsamd51g18a-mu.kicad_mod",
      "model_3d": "atsamd51g18a-mu-hero.glb",
      "model_3d_plain": "atsamd51g18a-mu-etched.glb",
      "model_3d_step": "atsamd51g18a-mu-etched.step",
      "model_3d_step_plain": "atsamd51g18a-mu.step",
      "lbr": "atsamd51g18a-mu.lbr"
    },
    "distributor_links": {
      "lcsc": "C614477",
      "digikey": "ATSAMD51G18A-MU-ND",
      "mouser": "556-ATSAMD51G18AMU"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T18:17:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATSAMD51G18A-MU-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "556-ATSAMD51G18AMU",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PA00",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions A-N via PMUX, including EIC EXTINT[0] and the XOSC32K XIN32 crystal input."
      },
      {
        "number": "2",
        "name": "PA01",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions A-N via PMUX, including EIC EXTINT[1] and the XOSC32K XOUT32 crystal output."
      },
      {
        "number": "3",
        "name": "PA02",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[2], ADC0 AIN[0] and DAC VOUT[0]; it is one of the recommended pins for XOSC32K jitter minimization on the 48-pin package."
      },
      {
        "number": "4",
        "name": "PA03",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[3], ANAREF VREFA, ADC0 AIN[1] and PTC X0/Y0; it is one of the recommended pins for XOSC32K jitter minimization on the 48-pin package."
      },
      {
        "number": "5",
        "name": "GNDANA",
        "type": "power_in",
        "description": "Analog ground reference pin for the analog peripherals."
      },
      {
        "number": "6",
        "name": "VDDANA",
        "type": "power_in",
        "description": "Analog supply pin for the analog peripherals; separate voltage limits are not given in the extracted pages."
      },
      {
        "number": "7",
        "name": "PB08",
        "type": "bidirectional",
        "description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[8], ADC0 AIN[2], ADC1 AIN[0] and PTC X1/Y1."
      },
      {
        "number": "8",
        "name": "PB09",
        "type": "bidirectional",
        "description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[9], ADC0 AIN[3], ADC1 AIN[1] and PTC X2/Y2."
      },
      {
        "number": "9",
        "name": "PA04",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[4], ANAREF VREFB, ADC0 AIN[4], AC AIN[0] and PTC X3/Y3."
      },
      {
        "number": "10",
        "name": "PA05",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[5], ADC0 AIN[5], AC AIN[1] and DAC VOUT[1]."
      },
      {
        "number": "11",
        "name": "PA06",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[6], ANAREF VREFC, ADC0 AIN[6], AC AIN[2] and PTC X4/Y4."
      },
      {
        "number": "12",
        "name": "PA07",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[7], ADC0 AIN[7], AC AIN[3] and PTC X5/Y5."
      },
      {
        "number": "13",
        "name": "PA08",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC NMI, ADC0 AIN[8] and ADC1 AIN[2]; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
      },
      {
        "number": "14",
        "name": "PA09",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[9], ADC0 AIN[9] and ADC1 AIN[3]; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
      },
      {
        "number": "15",
        "name": "PA10",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[10], ADC0 AIN[10] and QSPI DATA[2]."
      },
      {
        "number": "16",
        "name": "PA11",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[11], ADC0 AIN[11], PTC X9/Y9 and QSPI DATA[3]."
      },
      {
        "number": "17",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O supply pin for the GPIO clusters it powers; the device operating range is 1.71 V to 3.63 V."
      },
      {
        "number": "18",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device digital I/O and core."
      },
      {
        "number": "19",
        "name": "PB10",
        "type": "bidirectional",
        "description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[10], QSPI SCK and I2S SDI."
      },
      {
        "number": "20",
        "name": "PB11",
        "type": "bidirectional",
        "description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[11], QSPI CS and I2S FS[1]."
      },
      {
        "number": "21",
        "name": "PA12",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
      },
      {
        "number": "22",
        "name": "PA13",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
      },
      {
        "number": "23",
        "name": "PA14",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is the XOSC0 XIN oscillator input."
      },
      {
        "number": "24",
        "name": "PA15",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is the XOSC0 XOUT oscillator output."
      },
      {
        "number": "25",
        "name": "PA16",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
      },
      {
        "number": "26",
        "name": "PA17",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
      },
      {
        "number": "27",
        "name": "PA18",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX."
      },
      {
        "number": "28",
        "name": "PA19",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX."
      },
      {
        "number": "29",
        "name": "PA20",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[4] and PTC X14/Y14."
      },
      {
        "number": "30",
        "name": "PA21",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[5] and PTC X15/Y15."
      },
      {
        "number": "31",
        "name": "PA22",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[6] and PTC X16/Y16; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
      },
      {
        "number": "32",
        "name": "PA23",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[7], PTC X17/Y17 and USB SOF 1kHz; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
      },
      {
        "number": "33",
        "name": "PA24",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[8] and USB DM."
      },
      {
        "number": "34",
        "name": "PA25",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[9] and USB DP."
      },
      {
        "number": "35",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device digital I/O and core."
      },
      {
        "number": "36",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O supply pin for the GPIO clusters it powers; the device operating range is 1.71 V to 3.63 V."
      },
      {
        "number": "37",
        "name": "PB22",
        "type": "bidirectional",
        "description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[6], USB SOF 1kHz and the XOSC1 XIN oscillator input."
      },
      {
        "number": "38",
        "name": "PB23",
        "type": "bidirectional",
        "description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[7] and the XOSC1 XOUT oscillator output."
      },
      {
        "number": "39",
        "name": "PA27",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[11] and GCLK IO[1]."
      },
      {
        "number": "40",
        "name": "RESETN",
        "type": "input",
        "description": "Active-low external reset input (digital, active low) for the device."
      },
      {
        "number": "41",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core supply pin for the device internal logic, associated with the embedded buck/LDO regulator; its exact role and limits are not stated in the extracted pages."
      },
      {
        "number": "42",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device digital I/O and core."
      },
      {
        "number": "43",
        "name": "VSW",
        "type": "passive",
        "description": "Switch node of the embedded buck/LDO regulator; its external connection details are not in the extracted pages."
      },
      {
        "number": "44",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O supply pin for the GPIO clusters it powers; the device operating range is 1.71 V to 3.63 V."
      },
      {
        "number": "45",
        "name": "PA30",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[14] and the SWCLK serial-wire debug clock."
      },
      {
        "number": "46",
        "name": "PA31",
        "type": "bidirectional",
        "description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[15] and the SWDIO serial-wire debug data line."
      },
      {
        "number": "47",
        "name": "PB02",
        "type": "bidirectional",
        "description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[2], ADC0 AIN[14] and PTC X20/Y20; it is one of the recommended pins for XOSC32K jitter minimization on the 48-pin package."
      },
      {
        "number": "48",
        "name": "PB03",
        "type": "bidirectional",
        "description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[3], ADC0 AIN[15] and PTC X21/Y21; it is one of the recommended pins for XOSC32K jitter minimization on the 48-pin package."
      },
      {
        "number": "49",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
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      "Manufacturer": "Microchip Tech",
      "Package": "QFN-48-EP(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "49"
    },
    "appearance": {
      "housing": {
        "quote": "nu1RBase nu1 I Crypto RAM u2RLength Base of R Base of R value filled repetitively with u4FillValue",
        "page": 1316,
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        "material": "pet"
      },
      "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.",
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          "source_page": 46,
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          "name": "VBAT supply voltage (Automatic Power Switch)",
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          "name": "VDDCORE internal regulator output voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.2,
          "max": null,
          "conditions": "Internal regulator output (typical)",
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