ATMEGA329V-8AU

{
  "schema_version": 1,
  "type": "component",
  "slug": "atmega329v-8au",
  "title": "ATMEGA329V-8AU",
  "brief": "Microchip Tech Pre-ordered MCUs, 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",
    "atmega329v-8au",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATMEGA329V-8AU",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-64(14x14)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/2552S.pdf",
    "parts": {
      "symbol": "atmega329v-8au.kicad_sym",
      "footprint": "atmega329v-8au.kicad_mod",
      "model_3d": "atmega329v-8au-hero.glb",
      "model_3d_plain": "atmega329v-8au-etched.glb",
      "model_3d_step": "atmega329v-8au-etched.step",
      "model_3d_step_plain": "atmega329v-8au.step",
      "lbr": "atmega329v-8au.lbr"
    },
    "distributor_links": {
      "lcsc": "C1339468",
      "digikey": "ATMEGA329V-8AU-ND",
      "mouser": "556-ATMEGA329V8AU"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T18:41:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATMEGA329V-8AU-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "556-ATMEGA329V8AU",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LCDCAP",
        "type": "passive",
        "description": "LCD power reservoir pin; an external capacitor (typical >470nF) must be connected here."
      },
      {
        "number": "2",
        "name": "PE0",
        "type": "bidirectional",
        "description": "Port E bit 0 bi-directional I/O with pull-up; alternate functions RXD (USART receive) and PCINT0."
      },
      {
        "number": "3",
        "name": "PE1",
        "type": "bidirectional",
        "description": "Port E bit 1 bi-directional I/O with pull-up; alternate functions TXD (USART transmit) and PCINT1."
      },
      {
        "number": "4",
        "name": "PE2",
        "type": "bidirectional",
        "description": "Port E bit 2 bi-directional I/O with pull-up; alternate functions XCK, AIN0 and PCINT2."
      },
      {
        "number": "5",
        "name": "PE3",
        "type": "bidirectional",
        "description": "Port E bit 3 bi-directional I/O with pull-up; alternate functions AIN1 and PCINT3."
      },
      {
        "number": "6",
        "name": "PE4",
        "type": "bidirectional",
        "description": "Port E bit 4 bi-directional I/O with pull-up; alternate functions USCK/SCL (USI) and PCINT4."
      },
      {
        "number": "7",
        "name": "PE5",
        "type": "bidirectional",
        "description": "Port E bit 5 bi-directional I/O with pull-up; alternate functions DI/SDA (USI) and PCINT5."
      },
      {
        "number": "8",
        "name": "PE6",
        "type": "bidirectional",
        "description": "Port E bit 6 bi-directional I/O with pull-up; alternate functions DO (USI) and PCINT6."
      },
      {
        "number": "9",
        "name": "PE7",
        "type": "bidirectional",
        "description": "Port E bit 7 bi-directional I/O with pull-up; alternate functions CLKO and PCINT7."
      },
      {
        "number": "10",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0 bi-directional I/O with pull-up; alternate functions SS (SPI slave select) and PCINT8."
      },
      {
        "number": "11",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1 bi-directional I/O with pull-up; alternate functions SCK (SPI clock) and PCINT9."
      },
      {
        "number": "12",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Port B bit 2 bi-directional I/O with pull-up; alternate functions MOSI (SPI) and PCINT10."
      },
      {
        "number": "13",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Port B bit 3 bi-directional I/O with pull-up; alternate functions MISO (SPI) and PCINT11."
      },
      {
        "number": "14",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Port B bit 4 bi-directional I/O with pull-up; alternate functions OC0A and PCINT12."
      },
      {
        "number": "15",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Port B bit 5 bi-directional I/O with pull-up; alternate functions OC1A and PCINT13."
      },
      {
        "number": "16",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Port B bit 6 bi-directional I/O with pull-up; alternate functions OC1B and PCINT14."
      },
      {
        "number": "17",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Port B bit 7 bi-directional I/O with pull-up; alternate functions OC2A and PCINT15."
      },
      {
        "number": "18",
        "name": "PG3",
        "type": "bidirectional",
        "description": "Port G bit 3 bi-directional I/O with pull-up; alternate functions T1 and LCD segment SEG24."
      },
      {
        "number": "19",
        "name": "PG4",
        "type": "bidirectional",
        "description": "Port G bit 4 bi-directional I/O with pull-up; alternate functions T0 and LCD segment SEG23."
      },
      {
        "number": "20",
        "name": "RESET/PG5",
        "type": "input",
        "description": "Active-low 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; alternate function TOSC2 for the asynchronous timer."
      },
      {
        "number": "24",
        "name": "XTAL1",
        "type": "input",
        "description": "Input to the inverting oscillator amplifier and to the internal clock operating circuit; alternate function TOSC1."
      },
      {
        "number": "25",
        "name": "PD0",
        "type": "bidirectional",
        "description": "Port D bit 0 bi-directional I/O with pull-up; alternate functions ICP1 and LCD segment SEG22."
      },
      {
        "number": "26",
        "name": "PD1",
        "type": "bidirectional",
        "description": "Port D bit 1 bi-directional I/O with pull-up; alternate functions INT0 and LCD segment SEG21."
      },
      {
        "number": "27",
        "name": "PD2",
        "type": "bidirectional",
        "description": "Port D bit 2 bi-directional I/O with pull-up; alternate function LCD segment SEG20."
      },
      {
        "number": "28",
        "name": "PD3",
        "type": "bidirectional",
        "description": "Port D bit 3 bi-directional I/O with pull-up; alternate function LCD segment SEG19."
      },
      {
        "number": "29",
        "name": "PD4",
        "type": "bidirectional",
        "description": "Port D bit 4 bi-directional I/O with pull-up; alternate function LCD segment SEG18."
      },
      {
        "number": "30",
        "name": "PD5",
        "type": "bidirectional",
        "description": "Port D bit 5 bi-directional I/O with pull-up; alternate function LCD segment SEG17."
      },
      {
        "number": "31",
        "name": "PD6",
        "type": "bidirectional",
        "description": "Port D bit 6 bi-directional I/O with pull-up; alternate function LCD segment SEG16."
      },
      {
        "number": "32",
        "name": "PD7",
        "type": "bidirectional",
        "description": "Port D bit 7 bi-directional I/O with pull-up; alternate function LCD segment SEG15."
      },
      {
        "number": "33",
        "name": "PG0",
        "type": "bidirectional",
        "description": "Port G bit 0 bi-directional I/O with pull-up; alternate function LCD segment SEG14."
      },
      {
        "number": "34",
        "name": "PG1",
        "type": "bidirectional",
        "description": "Port G bit 1 bi-directional I/O with pull-up; alternate function LCD segment SEG13."
      },
      {
        "number": "35",
        "name": "PC0",
        "type": "bidirectional",
        "description": "Port C bit 0 bi-directional I/O with pull-up; alternate function LCD segment SEG12."
      },
      {
        "number": "36",
        "name": "PC1",
        "type": "bidirectional",
        "description": "Port C bit 1 bi-directional I/O with pull-up; alternate function LCD segment SEG11."
      },
      {
        "number": "37",
        "name": "PC2",
        "type": "bidirectional",
        "description": "Port C bit 2 bi-directional I/O with pull-up; alternate function LCD segment SEG10."
      },
      {
        "number": "38",
        "name": "PC3",
        "type": "bidirectional",
        "description": "Port C bit 3 bi-directional I/O with pull-up; alternate function LCD segment SEG9."
      },
      {
        "number": "39",
        "name": "PC4",
        "type": "bidirectional",
        "description": "Port C bit 4 bi-directional I/O with pull-up; alternate function LCD segment SEG8."
      },
      {
        "number": "40",
        "name": "PC5",
        "type": "bidirectional",
        "description": "Port C bit 5 bi-directional I/O with pull-up; alternate function LCD segment SEG7."
      },
      {
        "number": "41",
        "name": "PC6",
        "type": "bidirectional",
        "description": "Port C bit 6 bi-directional I/O with pull-up; alternate function LCD segment SEG6."
      },
      {
        "number": "42",
        "name": "PC7",
        "type": "bidirectional",
        "description": "Port C bit 7 bi-directional I/O with pull-up; alternate function LCD segment SEG5."
      },
      {
        "number": "43",
        "name": "PG2",
        "type": "bidirectional",
        "description": "Port G bit 2 bi-directional I/O with pull-up; alternate function LCD segment SEG4."
      },
      {
        "number": "44",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Port A bit 7 bi-directional I/O with pull-up; alternate function LCD segment SEG3."
      },
      {
        "number": "45",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Port A bit 6 bi-directional I/O with pull-up; alternate function LCD segment SEG2."
      },
      {
        "number": "46",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Port A bit 5 bi-directional I/O with pull-up; alternate function LCD segment SEG1."
      },
      {
        "number": "47",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Port A bit 4 bi-directional I/O with pull-up; alternate function LCD segment SEG0."
      },
      {
        "number": "48",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Port A bit 3 bi-directional I/O with pull-up; alternate function LCD common COM3."
      },
      {
        "number": "49",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Port A bit 2 bi-directional I/O with pull-up; alternate function LCD common COM2."
      },
      {
        "number": "50",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Port A bit 1 bi-directional I/O with pull-up; alternate function LCD common COM1."
      },
      {
        "number": "51",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Port A bit 0 bi-directional I/O with pull-up; alternate function LCD common COM0."
      },
      {
        "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, with pull-up active even during reset when JTAG is enabled."
      },
      {
        "number": "55",
        "name": "PF6",
        "type": "bidirectional",
        "description": "Port F bit 6 ADC6 analog input or digital I/O; JTAG TDO."
      },
      {
        "number": "56",
        "name": "PF5",
        "type": "bidirectional",
        "description": "Port F bit 5 ADC5 analog input or digital I/O; JTAG TMS, with pull-up active even during reset when JTAG is enabled."
      },
      {
        "number": "57",
        "name": "PF4",
        "type": "bidirectional",
        "description": "Port F bit 4 ADC4 analog input or digital I/O; JTAG TCK, with pull-up active even during reset when JTAG is enabled."
      },
      {
        "number": "58",
        "name": "PF3",
        "type": "bidirectional",
        "description": "Port F bit 3 ADC3 analog input or digital I/O."
      },
      {
        "number": "59",
        "name": "PF2",
        "type": "bidirectional",
        "description": "Port F bit 2 ADC2 analog input or digital I/O."
      },
      {
        "number": "60",
        "name": "PF1",
        "type": "bidirectional",
        "description": "Port F bit 1 ADC1 analog input or digital I/O."
      },
      {
        "number": "61",
        "name": "PF0",
        "type": "bidirectional",
        "description": "Port F bit 0 ADC0 analog input 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 (analog ground, labelled GND on this package)."
      },
      {
        "number": "64",
        "name": "AVCC",
        "type": "power_in",
        "description": "Supply voltage for Port F and the A/D converter; must be connected to VCC even if the ADC is unused, through a low-pass filter if the 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 64-pin pinout comes from Figure 1-2 (ATmega329/649), read from the page 3 image. The ATmega329V-; Pin 63 is labelled GND in the figure, not AGND. The AGND pin in the text descriptions is not present; The pin descriptions were built from the Port, RESET, XTAL, AVCC, AREF and LCDCAP sections plus the ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 30,
        "cost_usd": 0.635,
        "at": "2026-10-31T18:40:54"
      },
      "datasheet": {
        "url": "https://ww1.microchip.com/downloads/en/DeviceDoc/2552S.pdf",
        "pages": 30,
        "sha256": "1776de40e29928b0",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "sha256": "ba925bf5c4254d55a029c50945e4157a8371aaac29d2dc73cee8d71f59249e8c",
        "checked": "2026-10-31",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TQFP-64(14x14)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "64"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1776de40e29928b09c922aea7079c5e57f41fb83e68ef30b04ae77ccfe58e8f3",
      "rows": [
        {
          "name": "Supply voltage range (ATmega329V-8AU)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "Power supply, 8 MHz speed grade (ordering table)",
          "source_page": 17,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Industrial",
          "source_page": 17,
          "source": "datasheet"
        },
        {
          "name": "Clock frequency at 1.8 - 5.5V",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
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          "symbol": "",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 8,
          "conditions": "ATmega329V, 2.7 - 5.5V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Active mode current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 350,
          "max": null,
          "conditions": "1MHz, 1.8V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Active mode current with oscillator",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "32kHz, 1.8V (including Oscillator)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Active mode current with oscillator and LCD",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "32kHz, 1.8V (including Oscillator and LCD)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power-down mode current",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "1.8V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "LCDCAP external capacitor",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "nF",
          "min": 470,
          "typ": null,
          "max": null,
          "conditions": "typical > 470nF",
          "source_page": 9,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "ATMEGA329V-8AU (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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