component
ATMEGA329V-8AU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, TQFP-64(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "atmega329v-8au",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Pre-ordered MCUs, TQFP-64(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"embedded processors & controllers",
"atmega329v-8au",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"atmega329v-8au.kicad_sym",
"atmega329v-8au.kicad_mod",
"atmega329v-8au.glb",
"atmega329v-8au.step",
"atmega329v-8au.lbr",
"docs/hero.png",
"docs/atmega329v-8au-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"atmega329v-8au-hero.glb",
"atmega329v-8au-hero.overlay.json",
"atmega329v-8au-etched.glb"
],
"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": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "atmega329v-8au.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
16.0,
16.0,
1.1
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "ba925bf5c4254d55a029c50945e4157a8371aaac29d2dc73cee8d71f59249e8c",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atmega329v-8au-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
16.0,
16.0,
1.1
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "46461b06cb6d0c629c8afc8dd3358fa909b3225d6315cd47998e6f9ab2d9b145",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}