ATMEGA128-16AU

{
  "schema_version": 1,
  "type": "component",
  "slug": "atmega128-16au",
  "title": "ATMEGA128-16AU",
  "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",
    "atmega128-16au",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATMEGA128-16AU",
    "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/8586181771305738240",
    "parts": {
      "symbol": "atmega128-16au.kicad_sym",
      "footprint": "atmega128-16au.kicad_mod",
      "model_3d": "atmega128-16au-hero.glb",
      "model_3d_plain": "atmega128-16au-etched.glb",
      "model_3d_step": "atmega128-16au-etched.step",
      "model_3d_step_plain": "atmega128-16au.step",
      "lbr": "atmega128-16au.lbr"
    },
    "distributor_links": {
      "lcsc": "C111446",
      "digikey": "ATMEGA128-16AU-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T14:12:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATMEGA128-16AU-ND",
        "status": "found"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PEN",
        "type": "input",
        "description": "Programming enable pin, shown on the pinout figure (SPI serial programming enable); no text description in the provided pages."
      },
      {
        "number": "2",
        "name": "PE0",
        "type": "bidirectional",
        "description": "Port E bit 0, 8-bit bidirectional I/O with selectable internal pull-up; alternate functions RXD0/PDI."
      },
      {
        "number": "3",
        "name": "PE1",
        "type": "bidirectional",
        "description": "Port E bit 1, 8-bit bidirectional I/O with selectable internal pull-up; alternate functions TXD0/PDO."
      },
      {
        "number": "4",
        "name": "PE2",
        "type": "bidirectional",
        "description": "Port E bit 2, bidirectional I/O with selectable internal pull-up; alternate functions XCK0/AIN0."
      },
      {
        "number": "5",
        "name": "PE3",
        "type": "bidirectional",
        "description": "Port E bit 3, bidirectional I/O with selectable internal pull-up; alternate functions OC3A/AIN1."
      },
      {
        "number": "6",
        "name": "PE4",
        "type": "bidirectional",
        "description": "Port E bit 4, bidirectional I/O with selectable internal pull-up; alternate functions OC3B/INT4."
      },
      {
        "number": "7",
        "name": "PE5",
        "type": "bidirectional",
        "description": "Port E bit 5, bidirectional I/O with selectable internal pull-up; alternate functions OC3C/INT5."
      },
      {
        "number": "8",
        "name": "PE6",
        "type": "bidirectional",
        "description": "Port E bit 6, bidirectional I/O with selectable internal pull-up; alternate functions T3/INT6."
      },
      {
        "number": "9",
        "name": "PE7",
        "type": "bidirectional",
        "description": "Port E bit 7, bidirectional I/O with selectable internal pull-up; alternate functions ICP3/INT7."
      },
      {
        "number": "10",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0, bidirectional I/O with selectable internal pull-up; alternate function SS (SPI)."
      },
      {
        "number": "11",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1, bidirectional I/O with selectable internal pull-up; alternate function SCK (SPI)."
      },
      {
        "number": "12",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Port B bit 2, bidirectional I/O with selectable internal pull-up; alternate function MOSI (SPI)."
      },
      {
        "number": "13",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Port B bit 3, bidirectional I/O with selectable internal pull-up; alternate function MISO (SPI)."
      },
      {
        "number": "14",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Port B bit 4, bidirectional I/O with selectable internal pull-up; alternate function OC0."
      },
      {
        "number": "15",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Port B bit 5, bidirectional I/O with selectable internal pull-up; alternate function OC1A."
      },
      {
        "number": "16",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Port B bit 6, bidirectional I/O with selectable internal pull-up; alternate function OC1B."
      },
      {
        "number": "17",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Port B bit 7, bidirectional I/O with selectable internal pull-up; alternate functions OC2/OC1C."
      },
      {
        "number": "18",
        "name": "PG3/TOSC2",
        "type": "bidirectional",
        "description": "Port G bit 3, bidirectional I/O with selectable internal pull-up; alternate function TOSC2 (timer oscillator)."
      },
      {
        "number": "19",
        "name": "PG4/TOSC1",
        "type": "bidirectional",
        "description": "Port G bit 4, bidirectional I/O with selectable internal pull-up; alternate function TOSC1 (timer oscillator)."
      },
      {
        "number": "20",
        "name": "RESET",
        "type": "input",
        "description": "Reset input pin, shown on the pinout figure; no text description in the provided pages."
      },
      {
        "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": "Oscillator amplifier output, shown on the pinout figure; no text description in the provided pages."
      },
      {
        "number": "24",
        "name": "XTAL1",
        "type": "input",
        "description": "Oscillator amplifier / clock input, shown on the pinout figure; no text description in the provided pages."
      },
      {
        "number": "25",
        "name": "PD0",
        "type": "bidirectional",
        "description": "Port D bit 0, bidirectional I/O with selectable internal pull-up; alternate functions SCL/INT0."
      },
      {
        "number": "26",
        "name": "PD1",
        "type": "bidirectional",
        "description": "Port D bit 1, bidirectional I/O with selectable internal pull-up; alternate functions SDA/INT1."
      },
      {
        "number": "27",
        "name": "PD2",
        "type": "bidirectional",
        "description": "Port D bit 2, bidirectional I/O with selectable internal pull-up; alternate functions RXD1/INT2."
      },
      {
        "number": "28",
        "name": "PD3",
        "type": "bidirectional",
        "description": "Port D bit 3, bidirectional I/O with selectable internal pull-up; alternate functions TXD1/INT3."
      },
      {
        "number": "29",
        "name": "PD4",
        "type": "bidirectional",
        "description": "Port D bit 4, bidirectional I/O with selectable internal pull-up; alternate function ICP1."
      },
      {
        "number": "30",
        "name": "PD5",
        "type": "bidirectional",
        "description": "Port D bit 5, bidirectional I/O with selectable internal pull-up; alternate function XCK1."
      },
      {
        "number": "31",
        "name": "PD6",
        "type": "bidirectional",
        "description": "Port D bit 6, bidirectional I/O with selectable internal pull-up; alternate function T1."
      },
      {
        "number": "32",
        "name": "PD7",
        "type": "bidirectional",
        "description": "Port D bit 7, bidirectional I/O with selectable internal pull-up; alternate function T2."
      },
      {
        "number": "33",
        "name": "PG0",
        "type": "bidirectional",
        "description": "Port G bit 0, bidirectional I/O with selectable internal pull-up; alternate function WR (external memory write strobe)."
      },
      {
        "number": "34",
        "name": "PG1",
        "type": "bidirectional",
        "description": "Port G bit 1, bidirectional I/O with selectable internal pull-up; alternate function RD (external memory read strobe)."
      },
      {
        "number": "35",
        "name": "PC0",
        "type": "bidirectional",
        "description": "Port C bit 0, bidirectional I/O with selectable internal pull-up (output only in ATmega103 compatibility mode); alternate function A8."
      },
      {
        "number": "36",
        "name": "PC1",
        "type": "bidirectional",
        "description": "Port C bit 1, bidirectional I/O with selectable internal pull-up (output only in ATmega103 compatibility mode); alternate function A9."
      },
      {
        "number": "37",
        "name": "PC2",
        "type": "bidirectional",
        "description": "Port C bit 2, bidirectional I/O with selectable internal pull-up (output only in ATmega103 compatibility mode); alternate function A10."
      },
      {
        "number": "38",
        "name": "PC3",
        "type": "bidirectional",
        "description": "Port C bit 3, bidirectional I/O with selectable internal pull-up (output only in ATmega103 compatibility mode); alternate function A11."
      },
      {
        "number": "39",
        "name": "PC4",
        "type": "bidirectional",
        "description": "Port C bit 4, bidirectional I/O with selectable internal pull-up (output only in ATmega103 compatibility mode); alternate function A12."
      },
      {
        "number": "40",
        "name": "PC5",
        "type": "bidirectional",
        "description": "Port C bit 5, bidirectional I/O with selectable internal pull-up (output only in ATmega103 compatibility mode); alternate function A13."
      },
      {
        "number": "41",
        "name": "PC6",
        "type": "bidirectional",
        "description": "Port C bit 6, bidirectional I/O with selectable internal pull-up (output only in ATmega103 compatibility mode); alternate function A14."
      },
      {
        "number": "42",
        "name": "PC7",
        "type": "bidirectional",
        "description": "Port C bit 7, bidirectional I/O with selectable internal pull-up (output only in ATmega103 compatibility mode); alternate function A15."
      },
      {
        "number": "43",
        "name": "PG2",
        "type": "bidirectional",
        "description": "Port G bit 2, bidirectional I/O with selectable internal pull-up; alternate function ALE (external memory address latch enable)."
      },
      {
        "number": "44",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Port A bit 7, bidirectional I/O with selectable internal pull-up; alternate function AD7 (external memory address/data)."
      },
      {
        "number": "45",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Port A bit 6, bidirectional I/O with selectable internal pull-up; alternate function AD6 (external memory address/data)."
      },
      {
        "number": "46",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Port A bit 5, bidirectional I/O with selectable internal pull-up; alternate function AD5 (external memory address/data)."
      },
      {
        "number": "47",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Port A bit 4, bidirectional I/O with selectable internal pull-up; alternate function AD4 (external memory address/data)."
      },
      {
        "number": "48",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Port A bit 3, bidirectional I/O with selectable internal pull-up; alternate function AD3 (external memory address/data)."
      },
      {
        "number": "49",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Port A bit 2, bidirectional I/O with selectable internal pull-up; alternate function AD2 (external memory address/data)."
      },
      {
        "number": "50",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Port A bit 1, bidirectional I/O with selectable internal pull-up; alternate function AD1 (external memory address/data)."
      },
      {
        "number": "51",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Port A bit 0, bidirectional I/O with selectable internal pull-up; alternate function AD0 (external memory address/data)."
      },
      {
        "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, ADC7 analog input or digital I/O; JTAG TDI, pull-up active when JTAG is enabled even during Reset."
      },
      {
        "number": "55",
        "name": "PF6",
        "type": "bidirectional",
        "description": "Port F bit 6, ADC6 analog input or digital 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, ADC5 analog input or digital I/O; JTAG TMS, pull-up active when JTAG is enabled even during Reset."
      },
      {
        "number": "57",
        "name": "PF4",
        "type": "bidirectional",
        "description": "Port F bit 4, ADC4 analog input or digital I/O; JTAG TCK, pull-up active when JTAG is enabled even during Reset."
      },
      {
        "number": "58",
        "name": "PF3",
        "type": "bidirectional",
        "description": "Port F bit 3, ADC3 analog input to the A/D Converter or digital I/O."
      },
      {
        "number": "59",
        "name": "PF2",
        "type": "bidirectional",
        "description": "Port F bit 2, ADC2 analog input to the A/D Converter or digital I/O."
      },
      {
        "number": "60",
        "name": "PF1",
        "type": "bidirectional",
        "description": "Port F bit 1, ADC1 analog input to the A/D Converter or digital I/O."
      },
      {
        "number": "61",
        "name": "PF0",
        "type": "bidirectional",
        "description": "Port F bit 0, ADC0 analog input to the A/D Converter or digital I/O."
      },
      {
        "number": "62",
        "name": "AREF",
        "type": "input",
        "description": "Analog reference pin for the A/D Converter, shown on the pinout figure; no text description in the provided pages."
      },
      {
        "number": "63",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "64",
        "name": "AVCC",
        "type": "power_in",
        "description": "Supply voltage pin for the A/D Converter, shown on the pinout figure; no text description in the provided pages."
      }
    ],
    "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: The text extraction of Figure 1 (page 2) is scrambled, so the pin-number-to-name assignment was reco; The provided pages do not give electrical limits or functional text for PEN, RESET, XTAL1 or XTAL2 (; PC0-PC7 are output-only and not tri-stated at reset while the device is in ATmega103 compatibility m",
          "51/64 pins cited to the wrong page (name found elsewhere): ['3:PE1@p6', '4:PE2@p6', '5:PE3@p6', '6:PE4@p6']"
        ],
        "pages_sent": 15,
        "cost_usd": 0.1262,
        "at": "2026-10-18T14:11:50"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181771305738240",
        "pages": 24,
        "sha256": "31b0b99362e18471",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ba925bf5c4254d55a029c50945e4157a8371aaac29d2dc73cee8d71f59249e8c",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TQFP-64(14x14)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "64"
    },
    "characteristics": {
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      "rows": [
        {
          "name": "Supply voltage (VCC) for ATmega128-16AU",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 5.5,
          "conditions": "ATmega128-16AU, 16 MHz speed grade, per Ordering Information",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Clock frequency (speed grade, ATmega128 not L)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 16,
          "conditions": "ATmega128 (4.5-5.5 V) speed grade, per Features",
          "source_page": 1,
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        },
        {
          "name": "Operating temperature range (Industrial)",
          "symbol": "",
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          "unit": "°C",
          "min": -40,
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          "max": 85,
          "conditions": "Industrial operation range for ATmega128-16AU, per Ordering Information",
          "source_page": 12,
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  },
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  "discovery_triggers": [
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  "discovery_pitch": "ATMEGA128-16AU (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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