component
ATMEGA32L-8AU
Public Made by Adomby adom
Microchip Tech ATMEL & AVR, TQFP-44(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "atmega32l-8au",
"title": "ATMEGA32L-8AU",
"brief": "Microchip Tech ATMEL & AVR, TQFP-44(10x10). 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",
"atmega32l-8au",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATMEGA32L-8AU",
"manufacturer": "Microchip Tech",
"package": "TQFP-44(10x10)",
"pin_count": 44,
"category": "Embedded Processors & Controllers",
"subcategory": "ATMEL & AVR",
"datasheet": "https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/2503S.pdf",
"parts": {
"symbol": "atmega32l-8au.kicad_sym",
"footprint": "atmega32l-8au.kicad_mod",
"model_3d": "atmega32l-8au-hero.glb",
"model_3d_plain": "atmega32l-8au-etched.glb",
"model_3d_step": "atmega32l-8au-etched.step",
"model_3d_step_plain": "atmega32l-8au.step",
"lbr": "atmega32l-8au.lbr"
},
"distributor_links": {
"lcsc": "C111455",
"digikey": "ATMEGA32L-8AU-ND",
"mouser": "556-ATMEGA32L-8AU"
},
"distributor_check": {
"checked_at": "2026-10-30T19:02:58Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATMEGA32L-8AU-ND",
"status": "found"
},
"mouser": {
"pn": "556-ATMEGA32L-8AU",
"status": "found",
"lifecycle": "Not Recommended for New Designs"
}
},
"pins": [
{
"number": "1",
"name": "PB5",
"type": "bidirectional",
"description": "Port B bit 5 8-bit bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function MOSI (SPI)."
},
{
"number": "2",
"name": "PB6",
"type": "bidirectional",
"description": "Port B bit 6 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function MISO (SPI)."
},
{
"number": "3",
"name": "PB7",
"type": "bidirectional",
"description": "Port B bit 7 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function SCK (SPI)."
},
{
"number": "4",
"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": "5",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage (2.7V - 5.5V for ATmega32L)."
},
{
"number": "6",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "7",
"name": "XTAL2",
"type": "output",
"description": "Output from the inverting oscillator amplifier."
},
{
"number": "8",
"name": "XTAL1",
"type": "input",
"description": "Input to the inverting oscillator amplifier and input to the internal clock operating circuit."
},
{
"number": "9",
"name": "PD0",
"type": "bidirectional",
"description": "Port D bit 0 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function RXD (USART)."
},
{
"number": "10",
"name": "PD1",
"type": "bidirectional",
"description": "Port D bit 1 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function TXD (USART)."
},
{
"number": "11",
"name": "PD2",
"type": "bidirectional",
"description": "Port D bit 2 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function INT0."
},
{
"number": "12",
"name": "PD3",
"type": "bidirectional",
"description": "Port D bit 3 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function INT1."
},
{
"number": "13",
"name": "PD4",
"type": "bidirectional",
"description": "Port D bit 4 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function OC1B."
},
{
"number": "14",
"name": "PD5",
"type": "bidirectional",
"description": "Port D bit 5 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function OC1A."
},
{
"number": "15",
"name": "PD6",
"type": "bidirectional",
"description": "Port D bit 6 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function ICP1."
},
{
"number": "16",
"name": "PD7",
"type": "bidirectional",
"description": "Port D bit 7 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function OC2."
},
{
"number": "17",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage (2.7V - 5.5V for ATmega32L)."
},
{
"number": "18",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "19",
"name": "PC0",
"type": "bidirectional",
"description": "Port C bit 0 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function SCL (two-wire interface)."
},
{
"number": "20",
"name": "PC1",
"type": "bidirectional",
"description": "Port C bit 1 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function SDA (two-wire interface)."
},
{
"number": "21",
"name": "PC2",
"type": "bidirectional",
"description": "Port C bit 2 bi-directional I/O with selectable internal pull-up; alternate function TCK (JTAG), pull-up active even during reset if JTAG is enabled."
},
{
"number": "22",
"name": "PC3",
"type": "bidirectional",
"description": "Port C bit 3 bi-directional I/O with selectable internal pull-up; alternate function TMS (JTAG), pull-up active even during reset if JTAG is enabled."
},
{
"number": "23",
"name": "PC4",
"type": "bidirectional",
"description": "Port C bit 4 bi-directional I/O with selectable internal pull-up; alternate function TDO (JTAG), tri-stated unless TAP states that shift out data are entered."
},
{
"number": "24",
"name": "PC5",
"type": "bidirectional",
"description": "Port C bit 5 bi-directional I/O with selectable internal pull-up; alternate function TDI (JTAG), pull-up active even during reset if JTAG is enabled."
},
{
"number": "25",
"name": "PC6",
"type": "bidirectional",
"description": "Port C bit 6 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function TOSC1."
},
{
"number": "26",
"name": "PC7",
"type": "bidirectional",
"description": "Port C bit 7 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function TOSC2."
},
{
"number": "27",
"name": "AVCC",
"type": "power_in",
"description": "Supply voltage for Port A and the A/D Converter; must be connected to VCC even if the ADC is not used, via a low-pass filter if the ADC is used."
},
{
"number": "28",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "29",
"name": "AREF",
"type": "input",
"description": "Analog reference pin for the A/D Converter."
},
{
"number": "30",
"name": "PA7",
"type": "bidirectional",
"description": "Port A bit 7 bi-directional I/O with selectable internal pull-up, tri-stated on reset; ADC7 analog input."
},
{
"number": "31",
"name": "PA6",
"type": "bidirectional",
"description": "Port A bit 6 bi-directional I/O with selectable internal pull-up, tri-stated on reset; ADC6 analog input."
},
{
"number": "32",
"name": "PA5",
"type": "bidirectional",
"description": "Port A bit 5 bi-directional I/O with selectable internal pull-up, tri-stated on reset; ADC5 analog input."
},
{
"number": "33",
"name": "PA4",
"type": "bidirectional",
"description": "Port A bit 4 bi-directional I/O with selectable internal pull-up, tri-stated on reset; ADC4 analog input."
},
{
"number": "34",
"name": "PA3",
"type": "bidirectional",
"description": "Port A bit 3 bi-directional I/O with selectable internal pull-up, tri-stated on reset; ADC3 analog input."
},
{
"number": "35",
"name": "PA2",
"type": "bidirectional",
"description": "Port A bit 2 bi-directional I/O with selectable internal pull-up, tri-stated on reset; ADC2 analog input."
},
{
"number": "36",
"name": "PA1",
"type": "bidirectional",
"description": "Port A bit 1 bi-directional I/O with selectable internal pull-up, tri-stated on reset; ADC1 analog input."
},
{
"number": "37",
"name": "PA0",
"type": "bidirectional",
"description": "Port A bit 0 bi-directional I/O with selectable internal pull-up, tri-stated on reset; ADC0 analog input."
},
{
"number": "38",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage (2.7V - 5.5V for ATmega32L)."
},
{
"number": "39",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "40",
"name": "PB0",
"type": "bidirectional",
"description": "Port B bit 0 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function XCK/T0."
},
{
"number": "41",
"name": "PB1",
"type": "bidirectional",
"description": "Port B bit 1 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function T1."
},
{
"number": "42",
"name": "PB2",
"type": "bidirectional",
"description": "Port B bit 2 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function AIN0/INT2."
},
{
"number": "43",
"name": "PB3",
"type": "bidirectional",
"description": "Port B bit 3 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function AIN1/OC0."
},
{
"number": "44",
"name": "PB4",
"type": "bidirectional",
"description": "Port B bit 4 bi-directional I/O with selectable internal pull-up, tri-stated on reset; alternate function SS (SPI)."
}
],
"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 TQFP/MLF figure notes that the bottom pad should be soldered to ground. That note applies to the; AREF is typed as input (analog reference for the ADC). The datasheet does not give a pin direction f",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 21,
"cost_usd": 0.4392,
"at": "2026-10-30T19:02:48"
},
"datasheet": {
"url": "https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/2503S.pdf",
"pages": 21,
"sha256": "6695cff15ac64d10",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 44,
"described": 44,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
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"file": "atmega32l-8au.step",
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"footprint_binding": "identity",
"sha256": "61ecec1147f835d2c9d165c450b1c8d53e65b038f6ca1dac3066a2dfb1bbbb85",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atmega32l-8au-etched.step",
"role": "eda",
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"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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"zmin_mm": 0,
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"footprint_binding": "identity",
"sha256": "5130e7ee38c292637e1a75a3278479762585b0b5cbff6f41242e44e64ba8ae69",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "TQFP-44(10x10)",
"Category": "Embedded Processors & Controllers",
"Pins": "44"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "6695cff15ac64d1073f4ca2b0e28089733439397630ed0ec2114bd43ec829c51",
"rows": [
{
"name": "Supply voltage (ATmega32L, 8 MHz grade, ordering code ATmega32L-8AU)",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "ATmega32L-8AU, 8 MHz speed grade",
"source_page": 12,
"source": "datasheet"
},
{
"name": "Speed grade (ATmega32L)",
"symbol": "",
"kind": "recommended_operating",
"unit": "MHz",
"min": 0,
"typ": null,
"max": 8,
"conditions": "ATmega32L",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Operating temperature (Industrial range)",
"symbol": "",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "Industrial operating range, ATmega32L-8AU",
"source_page": 12,
"source": "datasheet"
},
{
"name": "Power-down mode current",
"symbol": "",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 1,
"conditions": "Power-down Mode; listed under Power Consumption at 1 MHz, 3V, 25°C (printed as < 1µA)",
"source_page": 1,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
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],
"discovery_pitch": "ATMEGA32L-8AU (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
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"visibility": {
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}
}