component
ATMEGA8535-16AU
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": "atmega8535-16au",
"title": "ATMEGA8535-16AU",
"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",
"atmega8535-16au",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATMEGA8535-16AU",
"manufacturer": "Microchip Tech",
"package": "TQFP-44(10x10)",
"pin_count": 44,
"category": "Embedded Processors & Controllers",
"subcategory": "ATMEL & AVR",
"datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/2502S.pdf",
"parts": {
"symbol": "atmega8535-16au.kicad_sym",
"footprint": "atmega8535-16au.kicad_mod",
"model_3d": "atmega8535-16au-hero.glb",
"model_3d_plain": "atmega8535-16au-etched.glb",
"model_3d_step": "atmega8535-16au-etched.step",
"model_3d_step_plain": "atmega8535-16au.step",
"lbr": "atmega8535-16au.lbr"
},
"distributor_links": {
"lcsc": "C15880"
},
"distributor_check": {
"checked_at": "2026-10-23T18:21:55Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "deferred",
"error": "shared DigiKey quota guard: 884 calls left today"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "PB5",
"type": "bidirectional",
"description": "Port B bit 5, 8-bit bi-directional I/O with selectable internal pull-up; alternate function MOSI (SPI)."
},
{
"number": "2",
"name": "PB6",
"type": "bidirectional",
"description": "Port B bit 6, bi-directional I/O with selectable internal pull-up; alternate function MISO (SPI)."
},
{
"number": "3",
"name": "PB7",
"type": "bidirectional",
"description": "Port B bit 7, bi-directional I/O with selectable internal pull-up; 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."
},
{
"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; alternate function RXD (USART)."
},
{
"number": "10",
"name": "PD1",
"type": "bidirectional",
"description": "Port D bit 1, bi-directional I/O with selectable internal pull-up; alternate function TXD (USART)."
},
{
"number": "11",
"name": "PD2",
"type": "bidirectional",
"description": "Port D bit 2, bi-directional I/O with selectable internal pull-up; alternate function INT0."
},
{
"number": "12",
"name": "PD3",
"type": "bidirectional",
"description": "Port D bit 3, bi-directional I/O with selectable internal pull-up; alternate function INT1."
},
{
"number": "13",
"name": "PD4",
"type": "bidirectional",
"description": "Port D bit 4, bi-directional I/O with selectable internal pull-up; alternate function OC1B."
},
{
"number": "14",
"name": "PD5",
"type": "bidirectional",
"description": "Port D bit 5, bi-directional I/O with selectable internal pull-up; alternate function OC1A."
},
{
"number": "15",
"name": "PD6",
"type": "bidirectional",
"description": "Port D bit 6, bi-directional I/O with selectable internal pull-up; alternate function ICP1."
},
{
"number": "16",
"name": "PD7",
"type": "bidirectional",
"description": "Port D bit 7, bi-directional I/O with selectable internal pull-up; alternate function OC2."
},
{
"number": "17",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage."
},
{
"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; 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; 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."
},
{
"number": "22",
"name": "PC3",
"type": "bidirectional",
"description": "Port C bit 3, bi-directional I/O with selectable internal pull-up."
},
{
"number": "23",
"name": "PC4",
"type": "bidirectional",
"description": "Port C bit 4, bi-directional I/O with selectable internal pull-up."
},
{
"number": "24",
"name": "PC5",
"type": "bidirectional",
"description": "Port C bit 5, bi-directional I/O with selectable internal pull-up."
},
{
"number": "25",
"name": "PC6",
"type": "bidirectional",
"description": "Port C bit 6, bi-directional I/O with selectable internal pull-up; alternate function TOSC1."
},
{
"number": "26",
"name": "PC7",
"type": "bidirectional",
"description": "Port C bit 7, bi-directional I/O with selectable internal pull-up; alternate function TOSC2."
},
{
"number": "27",
"name": "AVCC",
"type": "power_in",
"description": "Supply voltage pin for Port A 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": "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, analog input ADC7 to the A/D Converter or bi-directional I/O with selectable pull-up."
},
{
"number": "31",
"name": "PA6",
"type": "bidirectional",
"description": "Port A bit 6, analog input ADC6 to the A/D Converter or bi-directional I/O with selectable pull-up."
},
{
"number": "32",
"name": "PA5",
"type": "bidirectional",
"description": "Port A bit 5, analog input ADC5 to the A/D Converter or bi-directional I/O with selectable pull-up."
},
{
"number": "33",
"name": "PA4",
"type": "bidirectional",
"description": "Port A bit 4, analog input ADC4 to the A/D Converter or bi-directional I/O with selectable pull-up."
},
{
"number": "34",
"name": "PA3",
"type": "bidirectional",
"description": "Port A bit 3, analog input ADC3 to the A/D Converter or bi-directional I/O with selectable pull-up."
},
{
"number": "35",
"name": "PA2",
"type": "bidirectional",
"description": "Port A bit 2, analog input ADC2 to the A/D Converter or bi-directional I/O with selectable pull-up."
},
{
"number": "36",
"name": "PA1",
"type": "bidirectional",
"description": "Port A bit 1, analog input ADC1 to the A/D Converter or bi-directional I/O with selectable pull-up."
},
{
"number": "37",
"name": "PA0",
"type": "bidirectional",
"description": "Port A bit 0, analog input ADC0 to the A/D Converter or bi-directional I/O with selectable pull-up."
},
{
"number": "38",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage."
},
{
"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; alternate functions XCK/T0."
},
{
"number": "41",
"name": "PB1",
"type": "bidirectional",
"description": "Port B bit 1, bi-directional I/O with selectable internal pull-up; alternate function T1."
},
{
"number": "42",
"name": "PB2",
"type": "bidirectional",
"description": "Port B bit 2, bi-directional I/O with selectable internal pull-up; alternate functions AIN0/INT2."
},
{
"number": "43",
"name": "PB3",
"type": "bidirectional",
"description": "Port B bit 3, bi-directional I/O with selectable internal pull-up; alternate functions AIN1/OC0."
},
{
"number": "44",
"name": "PB4",
"type": "bidirectional",
"description": "Port B bit 4, bi-directional I/O with selectable internal pull-up; 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",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The extracted text of Figure 1 interleaves the TQFP/QFN and PLCC pin-number columns, so the pin-to-n; The summary datasheet gives no per-pin electrical descriptions for AREF, so its type is a judgement.; AREF is typed as input; it could be passive depending on how the reference is wired.",
"9/44 pins cited to the wrong page (name found elsewhere): ['7:XTAL2@p5', '8:XTAL1@p5', '17:VCC@p5', '18:GND@p5']"
],
"pages_sent": 22,
"cost_usd": 0.1306,
"at": "2026-10-23T18:21:37"
},
"datasheet": {
"url": "https://ww1.microchip.com/downloads/en/DeviceDoc/2502S.pdf",
"pages": 22,
"sha256": "c38c5b38530fba75",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 44,
"described": 44,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "atmega8535-16au.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
12,
12,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "61ecec1147f835d2c9d165c450b1c8d53e65b038f6ca1dac3066a2dfb1bbbb85",
"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atmega8535-16au-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
12,
12,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "8391640c54c59f4c9fed3d800a90ef09860974c647f34b6aa9c7bfba552ef852",
"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "TQFP-44(10x10)",
"Category": "Embedded Processors & Controllers",
"Pins": "44"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"atmega8535-16au"
],
"discovery_pitch": "ATMEGA8535-16AU (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
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"README.md",
"atmega8535-16au.kicad_sym",
"atmega8535-16au.kicad_mod",
"atmega8535-16au.glb",
"atmega8535-16au.step",
"atmega8535-16au.lbr",
"docs/hero.png",
"docs/atmega8535-16au-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"atmega8535-16au-hero.glb",
"atmega8535-16au-hero.overlay.json",
"atmega8535-16au-etched.glb"
],
"visibility": {
"public": true
}
}