component
ATMEGA164A-AU
Public Made by Adomby adom
Microchip Tech Microcontrollers (MCU/MPU/SOC), TQFP-44(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "atmega164a-au",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Microcontrollers (MCU/MPU/SOC), TQFP-44(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"embedded processors & controllers",
"atmega164a-au",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"atmega164a-au.kicad_sym",
"atmega164a-au.kicad_mod",
"atmega164a-au.glb",
"atmega164a-au.step",
"atmega164a-au.lbr",
"docs/hero.png",
"docs/atmega164a-au-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"atmega164a-au-hero.glb",
"atmega164a-au-hero.overlay.json",
"atmega164a-au-etched.glb"
],
"component": {
"mpn": "ATMEGA164A-AU",
"manufacturer": "Microchip Tech",
"package": "TQFP-44(10x10)",
"pin_count": 44,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589018279217647616",
"parts": {
"symbol": "atmega164a-au.kicad_sym",
"footprint": "atmega164a-au.kicad_mod",
"model_3d": "atmega164a-au-hero.glb",
"model_3d_plain": "atmega164a-au-etched.glb",
"model_3d_step": "atmega164a-au-etched.step",
"model_3d_step_plain": "atmega164a-au.step",
"lbr": "atmega164a-au.lbr"
},
"distributor_links": {
"lcsc": "C1337270",
"digikey": "ATMEGA164A-AU-ND",
"mouser": "556-ATMEGA164A-AU"
},
"distributor_check": {
"checked_at": "2026-10-21T00:36:28Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATMEGA164A-AU-ND",
"status": "found"
},
"mouser": {
"pn": "556-ATMEGA164A-AU",
"status": "found",
"lifecycle": "Not Recommended for New Designs"
}
},
"pins": [
{
"number": "1",
"name": "PB5",
"type": "bidirectional",
"description": "Port B bit 5 I/O with internal pull-up; alternate functions MOSI, ICP3, PCINT13."
},
{
"number": "2",
"name": "PB6",
"type": "bidirectional",
"description": "Port B bit 6 I/O with internal pull-up; alternate functions MISO, OC3A, PCINT14."
},
{
"number": "3",
"name": "PB7",
"type": "bidirectional",
"description": "Port B bit 7 I/O with internal pull-up; alternate functions SCK, OC3B, PCINT15."
},
{
"number": "4",
"name": "RESET",
"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": "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 I/O with internal pull-up; alternate functions RXD0, PCINT24 (T3 only on ATmega1284/1284P)."
},
{
"number": "10",
"name": "PD1",
"type": "bidirectional",
"description": "Port D bit 1 I/O with internal pull-up; alternate functions TXD0, PCINT25."
},
{
"number": "11",
"name": "PD2",
"type": "bidirectional",
"description": "Port D bit 2 I/O with internal pull-up; alternate functions RXD1, INT0, PCINT26."
},
{
"number": "12",
"name": "PD3",
"type": "bidirectional",
"description": "Port D bit 3 I/O with internal pull-up; alternate functions TXD1, INT1, PCINT27."
},
{
"number": "13",
"name": "PD4",
"type": "bidirectional",
"description": "Port D bit 4 I/O with internal pull-up; alternate functions XCK1, OC1B, PCINT28."
},
{
"number": "14",
"name": "PD5",
"type": "bidirectional",
"description": "Port D bit 5 I/O with internal pull-up; alternate functions OC1A, PCINT29."
},
{
"number": "15",
"name": "PD6",
"type": "bidirectional",
"description": "Port D bit 6 I/O with internal pull-up; alternate functions OC2B, ICP1, PCINT30."
},
{
"number": "16",
"name": "PD7",
"type": "bidirectional",
"description": "Port D bit 7 I/O with internal pull-up; alternate functions OC2A, PCINT31."
},
{
"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 I/O with internal pull-up; alternate functions SCL (TWI), PCINT16."
},
{
"number": "20",
"name": "PC1",
"type": "bidirectional",
"description": "Port C bit 1 I/O with internal pull-up; alternate functions SDA (TWI), PCINT17."
},
{
"number": "21",
"name": "PC2",
"type": "bidirectional",
"description": "Port C bit 2 I/O with internal pull-up; alternate functions TCK (JTAG), PCINT18."
},
{
"number": "22",
"name": "PC3",
"type": "bidirectional",
"description": "Port C bit 3 I/O with internal pull-up; alternate functions TMS (JTAG), PCINT19."
},
{
"number": "23",
"name": "PC4",
"type": "bidirectional",
"description": "Port C bit 4 I/O with internal pull-up; alternate functions TDO (JTAG), PCINT20."
},
{
"number": "24",
"name": "PC5",
"type": "bidirectional",
"description": "Port C bit 5 I/O with internal pull-up; alternate functions TDI (JTAG), PCINT21."
},
{
"number": "25",
"name": "PC6",
"type": "bidirectional",
"description": "Port C bit 6 I/O with internal pull-up; alternate functions TOSC1 (Timer/Counter2 oscillator), PCINT22."
},
{
"number": "26",
"name": "PC7",
"type": "bidirectional",
"description": "Port C bit 7 I/O with internal pull-up; alternate functions TOSC2 (Timer/Counter2 oscillator), PCINT23."
},
{
"number": "27",
"name": "AVCC",
"type": "power_in",
"description": "Supply voltage for Port A and the ADC; must be connected to VCC even if the ADC is unused, 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 analog-to-digital converter."
},
{
"number": "30",
"name": "PA7",
"type": "bidirectional",
"description": "Port A bit 7 I/O with internal pull-up; ADC7 analog input, PCINT7."
},
{
"number": "31",
"name": "PA6",
"type": "bidirectional",
"description": "Port A bit 6 I/O with internal pull-up; ADC6 analog input, PCINT6."
},
{
"number": "32",
"name": "PA5",
"type": "bidirectional",
"description": "Port A bit 5 I/O with internal pull-up; ADC5 analog input, PCINT5."
},
{
"number": "33",
"name": "PA4",
"type": "bidirectional",
"description": "Port A bit 4 I/O with internal pull-up; ADC4 analog input, PCINT4."
},
{
"number": "34",
"name": "PA3",
"type": "bidirectional",
"description": "Port A bit 3 I/O with internal pull-up; ADC3 analog input, PCINT3."
},
{
"number": "35",
"name": "PA2",
"type": "bidirectional",
"description": "Port A bit 2 I/O with internal pull-up; ADC2 analog input, PCINT2."
},
{
"number": "36",
"name": "PA1",
"type": "bidirectional",
"description": "Port A bit 1 I/O with internal pull-up; ADC1 analog input, PCINT1."
},
{
"number": "37",
"name": "PA0",
"type": "bidirectional",
"description": "Port A bit 0 I/O with internal pull-up; ADC0 analog input, PCINT0."
},
{
"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 I/O with internal pull-up; alternate functions XCK0, T0, PCINT8."
},
{
"number": "41",
"name": "PB1",
"type": "bidirectional",
"description": "Port B bit 1 I/O with internal pull-up; alternate functions CLKO, T1, PCINT9."
},
{
"number": "42",
"name": "PB2",
"type": "bidirectional",
"description": "Port B bit 2 I/O with internal pull-up; alternate functions AIN0, INT2, PCINT10."
},
{
"number": "43",
"name": "PB3",
"type": "bidirectional",
"description": "Port B bit 3 I/O with internal pull-up; alternate functions AIN1, OC0A, PCINT11."
},
{
"number": "44",
"name": "PB4",
"type": "bidirectional",
"description": "Port B bit 4 I/O with internal pull-up; alternate functions SS, OC0B, PCINT12."
}
],
"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: Pin numbers were read from the TQFP/QFN/MLF drawing on page 11. The -AU suffix is taken as the 44A T; PD0 shows T3 in the figure, but the datasheet says T3 exists only on ATmega1284/1284P, so it was omi",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 115,
"cost_usd": 1.1244,
"at": "2026-10-21T00:33:48"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589018279217647616",
"pages": 672,
"sha256": "b5ee49362803dc70",
"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": "atmega164a-au.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
12.0,
12.0,
1.1
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "61ecec1147f835d2c9d165c450b1c8d53e65b038f6ca1dac3066a2dfb1bbbb85",
"checked": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atmega164a-au-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
12.0,
12.0,
1.1
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "c345f3391fcf5849356e1e75e011de6490cd908c929c4ac73bce6ff9eca0846f",
"checked": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}