ATMEGA128A-AUR

{
  "schema_version": 1,
  "type": "component",
  "slug": "atmega128a-aur",
  "title": "ATMEGA128A-AUR",
  "brief": "Microchip Tech Microcontrollers (MCU/MPU/SOC), TQFP-64(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",
    "atmega128a-aur",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATMEGA128A-AUR",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-64(14x14)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586183985563652096",
    "parts": {
      "symbol": "atmega128a-aur.kicad_sym",
      "footprint": "atmega128a-aur.kicad_mod",
      "model_3d": "atmega128a-aur-hero.glb",
      "model_3d_plain": "atmega128a-aur-etched.glb",
      "model_3d_step": "atmega128a-aur-etched.step",
      "model_3d_step_plain": "atmega128a-aur.step",
      "lbr": "atmega128a-aur.lbr"
    },
    "distributor_links": {
      "lcsc": "C183188",
      "digikey": "ATMEGA128A-AURTR-ND",
      "mouser": "556-ATMEGA128A-AUR"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T17:27:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATMEGA128A-AURTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "556-ATMEGA128A-AUR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PEN",
        "type": "input",
        "description": "Programming enable pin for SPI Serial Programming mode, internally pulled high; holding it low during Power-on Reset enters SPI programming mode, no function in normal operation."
      },
      {
        "number": "2",
        "name": "PE0",
        "type": "bidirectional",
        "description": "Port E bit 0 bi-directional I/O with internal pull-up; alternate functions RXD0/PDI."
      },
      {
        "number": "3",
        "name": "PE1",
        "type": "bidirectional",
        "description": "Port E bit 1 bi-directional I/O with internal pull-up; alternate functions TXD0/PDO."
      },
      {
        "number": "4",
        "name": "PE2",
        "type": "bidirectional",
        "description": "Port E bit 2 bi-directional I/O with internal pull-up; alternate functions XCK0/AIN0."
      },
      {
        "number": "5",
        "name": "PE3",
        "type": "bidirectional",
        "description": "Port E bit 3 bi-directional I/O with internal pull-up; alternate functions OC3A/AIN1."
      },
      {
        "number": "6",
        "name": "PE4",
        "type": "bidirectional",
        "description": "Port E bit 4 bi-directional I/O with internal pull-up; alternate functions OC3B/INT4."
      },
      {
        "number": "7",
        "name": "PE5",
        "type": "bidirectional",
        "description": "Port E bit 5 bi-directional I/O with internal pull-up; alternate functions OC3C/INT5."
      },
      {
        "number": "8",
        "name": "PE6",
        "type": "bidirectional",
        "description": "Port E bit 6 bi-directional I/O with internal pull-up; alternate functions T3/INT6."
      },
      {
        "number": "9",
        "name": "PE7",
        "type": "bidirectional",
        "description": "Port E bit 7 bi-directional I/O with internal pull-up; alternate functions ICP3/INT7."
      },
      {
        "number": "10",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0 bi-directional I/O with internal pull-up; alternate function SS."
      },
      {
        "number": "11",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1 bi-directional I/O with internal pull-up; alternate function SCK."
      },
      {
        "number": "12",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Port B bit 2 bi-directional I/O with internal pull-up; alternate function MOSI."
      },
      {
        "number": "13",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Port B bit 3 bi-directional I/O with internal pull-up; alternate function MISO."
      },
      {
        "number": "14",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Port B bit 4 bi-directional I/O with internal pull-up; alternate function OC0."
      },
      {
        "number": "15",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Port B bit 5 bi-directional I/O with internal pull-up; alternate function OC1A."
      },
      {
        "number": "16",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Port B bit 6 bi-directional I/O with internal pull-up; alternate function OC1B."
      },
      {
        "number": "17",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Port B bit 7 bi-directional I/O with internal pull-up; alternate functions OC2/OC1C."
      },
      {
        "number": "18",
        "name": "PG3",
        "type": "bidirectional",
        "description": "Port G bit 3 bi-directional I/O with internal pull-up; alternate function TOSC2 (oscillator pin)."
      },
      {
        "number": "19",
        "name": "PG4",
        "type": "bidirectional",
        "description": "Port G bit 4 bi-directional I/O with internal pull-up; alternate function TOSC1 (oscillator pin)."
      },
      {
        "number": "20",
        "name": "RESET",
        "type": "input",
        "description": "Reset input; a low level longer than the minimum pulse length generates a reset even if the clock is not running."
      },
      {
        "number": "21",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage."
      },
      {
        "number": "22",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "23",
        "name": "XTAL2",
        "type": "output",
        "description": "Output from the inverting Oscillator amplifier."
      },
      {
        "number": "24",
        "name": "XTAL1",
        "type": "input",
        "description": "Input to the inverting Oscillator amplifier and input to the internal clock operating circuit."
      },
      {
        "number": "25",
        "name": "PD0",
        "type": "bidirectional",
        "description": "Port D bit 0 bi-directional I/O with internal pull-up; alternate functions SCL/INT0."
      },
      {
        "number": "26",
        "name": "PD1",
        "type": "bidirectional",
        "description": "Port D bit 1 bi-directional I/O with internal pull-up; alternate functions SDA/INT1."
      },
      {
        "number": "27",
        "name": "PD2",
        "type": "bidirectional",
        "description": "Port D bit 2 bi-directional I/O with internal pull-up; alternate functions RXD1/INT2."
      },
      {
        "number": "28",
        "name": "PD3",
        "type": "bidirectional",
        "description": "Port D bit 3 bi-directional I/O with internal pull-up; alternate functions TXD1/INT3."
      },
      {
        "number": "29",
        "name": "PD4",
        "type": "bidirectional",
        "description": "Port D bit 4 bi-directional I/O with internal pull-up; alternate function ICP1."
      },
      {
        "number": "30",
        "name": "PD5",
        "type": "bidirectional",
        "description": "Port D bit 5 bi-directional I/O with internal pull-up; alternate function XCK1."
      },
      {
        "number": "31",
        "name": "PD6",
        "type": "bidirectional",
        "description": "Port D bit 6 bi-directional I/O with internal pull-up; alternate function T1."
      },
      {
        "number": "32",
        "name": "PD7",
        "type": "bidirectional",
        "description": "Port D bit 7 bi-directional I/O with internal pull-up; alternate function T2."
      },
      {
        "number": "33",
        "name": "PG0",
        "type": "bidirectional",
        "description": "Port G bit 0 bi-directional I/O with internal pull-up; alternate function WR external memory write strobe."
      },
      {
        "number": "34",
        "name": "PG1",
        "type": "bidirectional",
        "description": "Port G bit 1 bi-directional I/O with internal pull-up; alternate function RD external memory read strobe."
      },
      {
        "number": "35",
        "name": "PC0",
        "type": "bidirectional",
        "description": "Port C bit 0 bi-directional I/O with internal pull-up; external memory address A8."
      },
      {
        "number": "36",
        "name": "PC1",
        "type": "bidirectional",
        "description": "Port C bit 1 bi-directional I/O with internal pull-up; external memory address A9."
      },
      {
        "number": "37",
        "name": "PC2",
        "type": "bidirectional",
        "description": "Port C bit 2 bi-directional I/O with internal pull-up; external memory address A10."
      },
      {
        "number": "38",
        "name": "PC3",
        "type": "bidirectional",
        "description": "Port C bit 3 bi-directional I/O with internal pull-up; external memory address A11."
      },
      {
        "number": "39",
        "name": "PC4",
        "type": "bidirectional",
        "description": "Port C bit 4 bi-directional I/O with internal pull-up; external memory address A12."
      },
      {
        "number": "40",
        "name": "PC5",
        "type": "bidirectional",
        "description": "Port C bit 5 bi-directional I/O with internal pull-up; external memory address A13."
      },
      {
        "number": "41",
        "name": "PC6",
        "type": "bidirectional",
        "description": "Port C bit 6 bi-directional I/O with internal pull-up; external memory address A14."
      },
      {
        "number": "42",
        "name": "PC7",
        "type": "bidirectional",
        "description": "Port C bit 7 bi-directional I/O with internal pull-up; external memory address A15."
      },
      {
        "number": "43",
        "name": "PG2",
        "type": "bidirectional",
        "description": "Port G bit 2 bi-directional I/O with internal pull-up; alternate function ALE external memory address latch enable."
      },
      {
        "number": "44",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Port A bit 7 bi-directional I/O with internal pull-up; external memory address/data AD7."
      },
      {
        "number": "45",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Port A bit 6 bi-directional I/O with internal pull-up; external memory address/data AD6."
      },
      {
        "number": "46",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Port A bit 5 bi-directional I/O with internal pull-up; external memory address/data AD5."
      },
      {
        "number": "47",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Port A bit 4 bi-directional I/O with internal pull-up; external memory address/data AD4."
      },
      {
        "number": "48",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Port A bit 3 bi-directional I/O with internal pull-up; external memory address/data AD3."
      },
      {
        "number": "49",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Port A bit 2 bi-directional I/O with internal pull-up; external memory address/data AD2."
      },
      {
        "number": "50",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Port A bit 1 bi-directional I/O with internal pull-up; external memory address/data AD1."
      },
      {
        "number": "51",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Port A bit 0 bi-directional I/O with internal pull-up; external memory address/data AD0."
      },
      {
        "number": "52",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage."
      },
      {
        "number": "53",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "54",
        "name": "PF7",
        "type": "bidirectional",
        "description": "Port F bit 7, ADC input channel 7 or I/O; JTAG TDI, pull-up activated even during Reset if JTAG is enabled."
      },
      {
        "number": "55",
        "name": "PF6",
        "type": "bidirectional",
        "description": "Port F bit 6, ADC input channel 6 or I/O; JTAG TDO, tri-stated unless TAP states that shift out data are entered."
      },
      {
        "number": "56",
        "name": "PF5",
        "type": "bidirectional",
        "description": "Port F bit 5, ADC input channel 5 or I/O; JTAG TMS, pull-up activated even during Reset if JTAG is enabled."
      },
      {
        "number": "57",
        "name": "PF4",
        "type": "bidirectional",
        "description": "Port F bit 4, ADC input channel 4 or I/O; JTAG TCK, pull-up activated even during Reset if JTAG is enabled."
      },
      {
        "number": "58",
        "name": "PF3",
        "type": "bidirectional",
        "description": "Port F bit 3, analog input ADC3 to the A/D Converter or digital I/O."
      },
      {
        "number": "59",
        "name": "PF2",
        "type": "bidirectional",
        "description": "Port F bit 2, analog input ADC2 to the A/D Converter or digital I/O."
      },
      {
        "number": "60",
        "name": "PF1",
        "type": "bidirectional",
        "description": "Port F bit 1, analog input ADC1 to the A/D Converter or digital I/O."
      },
      {
        "number": "61",
        "name": "PF0",
        "type": "bidirectional",
        "description": "Port F bit 0, analog input ADC0 to the A/D Converter or digital I/O."
      },
      {
        "number": "62",
        "name": "AREF",
        "type": "input",
        "description": "Analog reference pin for the A/D Converter."
      },
      {
        "number": "63",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "64",
        "name": "AVCC",
        "type": "power_in",
        "description": "Supply voltage pin for Port F and the A/D Converter; must be connected to VCC even if ADC is unused, through a low-pass filter if ADC is used."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet text says the hook-reported adom update failure is unrelated; no issue with pinout. Pi",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 20,
        "cost_usd": 0.3669,
        "at": "2026-10-20T17:24:53"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586183985563652096",
        "pages": 20,
        "sha256": "3e7097d1b104e6eb",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "atmega128a-aur.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16,
          16,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ba925bf5c4254d55a029c50945e4157a8371aaac29d2dc73cee8d71f59249e8c",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "atmega128a-aur-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4ad66f250ee0667bae4ada70916445faa822984ba93b4473065b3869a8b0b0d1",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TQFP-64(14x14)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "64"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "3e7097d1b104e6eb8bc60e1f84fc86118870521cb1e7400e7b1e4511c0a73678",
      "rows": [
        {
          "name": "Power supply voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "Speed 16 MHz",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Speed grade (operating frequency)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 16,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operational temperature range (Industrial)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Industrial operational range",
          "source_page": 6,
          "source": "datasheet"
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  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
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  ],
  "discovery_triggers": [
    "atmega128a-aur"
  ],
  "discovery_pitch": "ATMEGA128A-AUR (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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  "visibility": {
    "public": true
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}