ATSAMG55J19A-MU

{
  "schema_version": 1,
  "type": "component",
  "slug": "atsamg55j19a-mu",
  "title": "ATSAMG55J19A-MU",
  "brief": "Microchip Tech Pre-ordered MCUs, QFN-64-EP(7.5x7.5). 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",
    "atsamg55j19a-mu",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATSAMG55J19A-MU",
    "manufacturer": "Microchip Tech",
    "package": "QFN-64-EP(7.5x7.5)",
    "pin_count": 65,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/27c9ee0b43000f32244789070236b1c3.pdf",
    "parts": {
      "symbol": "atsamg55j19a-mu.kicad_sym",
      "footprint": "atsamg55j19a-mu.kicad_mod",
      "model_3d": "atsamg55j19a-mu-hero.glb",
      "model_3d_plain": "atsamg55j19a-mu-etched.glb",
      "model_3d_step": "atsamg55j19a-mu-etched.step",
      "model_3d_step_plain": "atsamg55j19a-mu.step",
      "lbr": "atsamg55j19a-mu.lbr"
    },
    "distributor_links": {
      "lcsc": "C614660",
      "digikey": "ATSAMG55J19A-MU-ND",
      "mouser": "556-ATSAMG55J19A-MU"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T16:14:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATSAMG55J19A-MU-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "556-ATSAMG55J19A-MU",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the peripheral I/O lines, RTC, RTT, SUPC, voltage regulator and ADC over 1.62V to 3.6V."
      },
      {
        "number": "2",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional active-low reset with an integrated pull-up of about 100 kΩ to VDDIO, configured as an input by default."
      },
      {
        "number": "3",
        "name": "PB12",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "4",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "5",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "6",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "7",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "8",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "9",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Powers the core, processor, embedded memories and peripherals except RTC, RTT and SUPC; it is recommended to connect it to VDDOUT."
      },
      {
        "number": "10",
        "name": "TEST",
        "type": "input",
        "description": "TST pin selects the operating mode at powerup: low for normal operation and high for test mode, with a permanent pull-down of about 15 kΩ."
      },
      {
        "number": "11",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "12",
        "name": "PA8",
        "type": "bidirectional",
        "description": "Multiplexed PIO line; in peripheral function B it is the ADC external trigger input ADTRG."
      },
      {
        "number": "13",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, common to VDDCORE and VDDIO."
      },
      {
        "number": "14",
        "name": "PB15",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "15",
        "name": "PB14",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "16",
        "name": "PA31",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "17",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "18",
        "name": "PA16",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "19",
        "name": "PA30",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "20",
        "name": "PA29",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "21",
        "name": "PA28",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "22",
        "name": "PA15",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "23",
        "name": "PA23",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "24",
        "name": "PA22",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "25",
        "name": "PA21",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "26",
        "name": "VDDUSB",
        "type": "power_in",
        "description": "Powers the USB on 64-pin packages over 3.0V to 3.6V."
      },
      {
        "number": "27",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the peripheral I/O lines, RTC, RTT, SUPC, voltage regulator and ADC over 1.62V to 3.6V."
      },
      {
        "number": "28",
        "name": "ADVREF",
        "type": "input",
        "description": "ADC analog reference on 64-pin packages; connect to VDDIO or let it rise with VDDIO at powerup to avoid overcurrent."
      },
      {
        "number": "29",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, common to VDDCORE and VDDIO."
      },
      {
        "number": "30",
        "name": "VDDOUT",
        "type": "power_out",
        "description": "Voltage regulator output, which the datasheet recommends connecting to VDDCORE."
      },
      {
        "number": "31",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the peripheral I/O lines, RTC, RTT, SUPC, voltage regulator and ADC over 1.62V to 3.6V."
      },
      {
        "number": "32",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the peripheral I/O lines, RTC, RTT, SUPC, voltage regulator and ADC over 1.62V to 3.6V."
      },
      {
        "number": "33",
        "name": "PA17",
        "type": "bidirectional",
        "description": "Multiplexed PIO line; ADC analog input AD0 in the ADC mapping."
      },
      {
        "number": "34",
        "name": "PA18",
        "type": "bidirectional",
        "description": "Multiplexed PIO line; ADC analog input AD1 in the ADC mapping."
      },
      {
        "number": "35",
        "name": "PA19",
        "type": "bidirectional",
        "description": "Multiplexed PIO line; ADC analog input AD2 in the ADC mapping."
      },
      {
        "number": "36",
        "name": "PA20",
        "type": "bidirectional",
        "description": "Multiplexed PIO line; ADC analog input AD3 in the ADC mapping."
      },
      {
        "number": "37",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Multiplexed PIO line; ADC analog input AD4 in the ADC mapping."
      },
      {
        "number": "38",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Multiplexed PIO line; ADC analog input AD5 in the ADC mapping."
      },
      {
        "number": "39",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Multiplexed PIO line; ADC analog input AD6 with wakeup WKUP12 in the ADC mapping."
      },
      {
        "number": "40",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Multiplexed PIO line; ADC analog input AD7 with wakeup WKUP13 in the ADC mapping."
      },
      {
        "number": "41",
        "name": "PA14",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "42",
        "name": "PA13",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "43",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "45",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Powers the core, processor, embedded memories and peripherals except RTC, RTT and SUPC; it is recommended to connect it to VDDOUT."
      },
      {
        "number": "46",
        "name": "PB10",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "47",
        "name": "PB11",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "48",
        "name": "PA10",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "49",
        "name": "PA9",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "50",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "51",
        "name": "PA27",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "52",
        "name": "PA26",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "53",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, common to VDDCORE and VDDIO."
      },
      {
        "number": "54",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "55",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "56",
        "name": "PA25",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "57",
        "name": "PB13",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "58",
        "name": "PA24",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "59",
        "name": "PB8/XOUT",
        "type": "bidirectional",
        "description": "Multiplexed PIO line, shared with the XOUT oscillator output; its pull-up is disabled."
      },
      {
        "number": "60",
        "name": "PB9/XIN",
        "type": "bidirectional",
        "description": "Multiplexed PIO line, shared with the XIN oscillator input; its pull-up is disabled."
      },
      {
        "number": "61",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "62",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Multiplexed PIO line whose peripheral function is assigned by programming the PIO controller."
      },
      {
        "number": "63",
        "name": "JTAGSEL",
        "type": "input",
        "description": "Selects the debug port when low (SW-DP or JTAG-DP) and boundary scan when high during powerup."
      },
      {
        "number": "64",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the peripheral I/O lines, RTC, RTT, SUPC, voltage regulator and ADC over 1.62V to 3.6V."
      },
      {
        "number": "65",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Table 4-3 lists the shared 64-pin LQFP and QFN pinout; the text does not print a separate QFN pinout; The exposed pad of the QFN package is not numbered in Table 4-3. Only the note on page 10 is given, ; The package dimension 7.5x7.5 mm in the package hint does not appear in the provided pages; only the",
          "9/65 pins cited to the wrong page (name found elsewhere): ['10:TEST@p37', '33:PA17@p1003', '34:PA18@p1003', '35:PA19@p1003']"
        ],
        "pages_sent": 46,
        "cost_usd": 0.0906,
        "at": "2026-10-28T16:14:10"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/27c9ee0b43000f32244789070236b1c3.pdf",
        "pages": 1107,
        "sha256": "3629fc41720dd133",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 65,
        "described": 65,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "atsamg55j19a-mu.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8,
          8,
          0.87
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "553641350988a3d949874ef3cbbe3efa6e239859177963f45ba4e900f4c74ccf",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "atsamg55j19a-mu-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8,
          8,
          0.87
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "211f095f25f476f53648f815bf649a7cdd88d6149699703d857e6e78327e4b59",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "QFN-64-EP(7.5x7.5)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "65"
    },
    "appearance": {
      "housing": {
        "quote": "before performing the calculation, making the base address for the calculation word-aligned. ̶ Note: To generate the address of an instruction, the constant based on the value of the PC must be",
        "page": 114,
        "doc": "ds.pdf",
        "material": "PC"
      },
      "version": 1,
      "datasheet_sha256": "3629fc41720dd133bd722b403b3858cb91d096df478c377d00b32743dc5ff9cf"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "atsamg55j19a-mu"
  ],
  "discovery_pitch": "ATSAMG55J19A-MU (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "atsamg55j19a-mu.kicad_sym",
    "atsamg55j19a-mu.kicad_mod",
    "atsamg55j19a-mu.glb",
    "atsamg55j19a-mu.step",
    "atsamg55j19a-mu.lbr",
    "docs/hero.png",
    "docs/atsamg55j19a-mu-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "atsamg55j19a-mu-hero.glb",
    "atsamg55j19a-mu-hero.overlay.json",
    "atsamg55j19a-mu-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}