ATMEGA64L-8MU

{
  "schema_version": 1,
  "type": "component",
  "slug": "atmega64l-8mu",
  "title": "ATMEGA64L-8MU",
  "brief": "Microchip Tech Pre-ordered MCUs, QFN-64-EP(9x9). 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",
    "atmega64l-8mu",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATMEGA64L-8MU",
    "manufacturer": "Microchip Tech",
    "package": "QFN-64-EP(9x9)",
    "pin_count": 65,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-2490-8-bit-AVR-Microcontroller-ATmega64-L_summary.pdf",
    "parts": {
      "symbol": "atmega64l-8mu.kicad_sym",
      "footprint": "atmega64l-8mu.kicad_mod",
      "model_3d": "atmega64l-8mu-hero.glb",
      "model_3d_plain": "atmega64l-8mu-etched.glb",
      "model_3d_step": "atmega64l-8mu-etched.step",
      "model_3d_step_plain": "atmega64l-8mu.step",
      "lbr": "atmega64l-8mu.lbr"
    },
    "distributor_links": {
      "lcsc": "C1340114",
      "digikey": "ATMEGA64L-8MU-ND",
      "mouser": "556-ATMEGA64L-8MU"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T22:08:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATMEGA64L-8MU-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "556-ATMEGA64L-8MU",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PEN",
        "type": "input",
        "description": "SPI Serial Programming enable pin, internally pulled high; holding it low during Power-on Reset enters SPI Serial Programming mode and it has no function during 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/TOSC2",
        "type": "bidirectional",
        "description": "Port G bit 3, bi-directional I/O with internal pull-up, also the TOSC2 real time counter oscillator pin."
      },
      {
        "number": "19",
        "name": "PG4/TOSC1",
        "type": "bidirectional",
        "description": "Port G bit 4, bi-directional I/O with internal pull-up, also the TOSC1 real time counter 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, external memory write strobe (WR)."
      },
      {
        "number": "34",
        "name": "PG1",
        "type": "bidirectional",
        "description": "Port G bit 1, bi-directional I/O with internal pull-up, external memory read strobe (RD)."
      },
      {
        "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, external memory address latch enable (ALE)."
      },
      {
        "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, ADC7 analog input or I/O, JTAG TDI; its pull-up is activated when JTAG is enabled even during reset."
      },
      {
        "number": "55",
        "name": "PF6",
        "type": "bidirectional",
        "description": "Port F bit 6, ADC6 analog input or I/O, JTAG TDO, which is 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 I/O, JTAG TMS; its pull-up is activated when JTAG is enabled even during reset."
      },
      {
        "number": "57",
        "name": "PF4",
        "type": "bidirectional",
        "description": "Port F bit 4, ADC4 analog input or I/O, JTAG TCK; its pull-up is activated 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 general I/O."
      },
      {
        "number": "59",
        "name": "PF2",
        "type": "bidirectional",
        "description": "Port F bit 2, ADC2 analog input to the A/D Converter or general I/O."
      },
      {
        "number": "60",
        "name": "PF1",
        "type": "bidirectional",
        "description": "Port F bit 1, ADC1 analog input to the A/D Converter or general I/O."
      },
      {
        "number": "61",
        "name": "PF0",
        "type": "bidirectional",
        "description": "Port F bit 0, ADC0 analog input to the A/D Converter or general 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 the ADC is not used, through a low-pass filter if the ADC is used."
      },
      {
        "number": "65",
        "name": "EP",
        "type": "power_in",
        "description": "Exposed bottom pad of the QFN/MLF package, which should be soldered to ground."
      }
    ],
    "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 datasheet has no separate 64M1 (QFN/MLF) pin drawing. The pin numbers come from Figure 1, which ; The exposed bottom pad of the 64M1 package has no pin number in the datasheet. The datasheet only sa; Pin types for multi-function pins were assigned by their primary function. PG3/PG4 (TOSC2/TOSC1) are",
          "exposed pad 65 added from the footprint",
          "55/65 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": 0.117,
        "at": "2026-10-30T22:08:04"
      },
      "datasheet": {
        "url": "https://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-2490-8-bit-AVR-Microcontroller-ATmega64-L_summary.pdf",
        "pages": 15,
        "sha256": "0deef41350e65cc6",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 65,
        "described": 65,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "sha256": "dce07a86ec3fe3ca87eebdff13827f55e036ced5518fee01f85cec4a3f56366d",
        "checked": "2026-10-30",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "QFN-64-EP(9x9)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "65"
    },
    "characteristics": {
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          "name": "Supply voltage (VCC), ATmega64L speed grade 8 MHz",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "ATmega64L-8MU, 8 MHz speed grade (ordering table)",
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          "unit": "MHz",
          "min": 0,
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          "max": 8,
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        {
          "name": "Operating temperature range, Industrial",
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          "max": 85,
          "conditions": "Industrial operation range (-40C to 85C) for ATmega64L-8MU",
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  "discovery_pitch": "ATMEGA64L-8MU (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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