component
ATTINY406-MNR
Public Made by Adomby adom
Microchip Tech MICROCHIP, QFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "attiny406-mnr",
"title": "ATTINY406-MNR",
"brief": "Microchip Tech MICROCHIP, QFN-20-EP(3x3). 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",
"attiny406-mnr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATTINY406-MNR",
"manufacturer": "Microchip Tech",
"package": "QFN-20-EP(3x3)",
"pin_count": 21,
"category": "Embedded Processors & Controllers",
"subcategory": "MICROCHIP",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/2dd4cb8bfe7bead1c1c1653e03a5d62b.pdf",
"parts": {
"symbol": "attiny406-mnr.kicad_sym",
"footprint": "attiny406-mnr.kicad_mod",
"model_3d": "attiny406-mnr-hero.glb",
"model_3d_plain": "attiny406-mnr-etched.glb",
"model_3d_step": "attiny406-mnr-etched.step",
"model_3d_step_plain": "attiny406-mnr.step",
"lbr": "attiny406-mnr.lbr"
},
"distributor_links": {
"lcsc": "C617919"
},
"distributor_check": {
"checked_at": "2026-10-22T22:24:46Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "PA2",
"type": "bidirectional",
"description": "PORTA pin 2 GPIO with EVOUT0, ADC AIN2, USART RxD (alternate), SPI MISO and CCL LUT0-IN2 functions."
},
{
"number": "2",
"name": "PA3/EXTCLK",
"type": "bidirectional",
"description": "PORTA pin 3 GPIO that also serves as external clock input EXTCLK, with ADC AIN3, USART XCK (alternate), SPI SCK and TCA0 WO3 functions."
},
{
"number": "3",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "4",
"name": "VDD",
"type": "power_in",
"description": "Input supply, operating range 2.7 V to 5.5 V."
},
{
"number": "5",
"name": "PA4",
"type": "bidirectional",
"description": "PORTA pin 4 GPIO with ADC AIN4, USART XDIR (alternate), SPI SS, TCA0 WO4 and CCL LUT0-OUT functions."
},
{
"number": "6",
"name": "PA5",
"type": "bidirectional",
"description": "PORTA pin 5 GPIO with ADC AIN5, analog comparator OUT, TCA0 WO5 and TCB0 WO functions."
},
{
"number": "7",
"name": "PA6",
"type": "bidirectional",
"description": "PORTA pin 6 GPIO with ADC AIN6 and analog comparator negative input AINN0."
},
{
"number": "8",
"name": "PA7",
"type": "bidirectional",
"description": "PORTA pin 7 GPIO with ADC AIN7, analog comparator positive input AINP0 and CCL LUT1-OUT functions."
},
{
"number": "9",
"name": "PB5",
"type": "bidirectional",
"description": "PORTB pin 5 GPIO with CLKOUT, ADC AIN8, comparator AINP1 and alternate TCA0 WO2 functions."
},
{
"number": "10",
"name": "PB4",
"type": "bidirectional",
"description": "PORTB pin 4 GPIO with ADC AIN9, comparator AINN1, alternate TCA0 WO1 and alternate CCL LUT0-OUT functions."
},
{
"number": "11",
"name": "PB3",
"type": "bidirectional",
"description": "PORTB pin 3 GPIO with USART RxD and alternate TCA0 WO0 functions."
},
{
"number": "12",
"name": "PB2",
"type": "bidirectional",
"description": "PORTB pin 2 GPIO with EVOUT1, USART TxD and TCA0 WO2 functions."
},
{
"number": "13",
"name": "PB1",
"type": "bidirectional",
"description": "PORTB pin 1 GPIO with ADC AIN10, USART XCK, TWI SDA and TCA0 WO1 functions."
},
{
"number": "14",
"name": "PB0",
"type": "bidirectional",
"description": "PORTB pin 0 GPIO with ADC AIN11, USART XDIR, TWI SCL and TCA0 WO0 functions."
},
{
"number": "15",
"name": "PC0",
"type": "bidirectional",
"description": "PORTC pin 0 GPIO with alternate SPI SCK and alternate TCB0 WO functions."
},
{
"number": "16",
"name": "PC1",
"type": "bidirectional",
"description": "PORTC pin 1 GPIO with alternate SPI MISO and alternate CCL LUT1-OUT functions."
},
{
"number": "17",
"name": "PC2",
"type": "bidirectional",
"description": "PORTC pin 2 GPIO with EVOUT2 and alternate SPI MOSI functions."
},
{
"number": "18",
"name": "PC3",
"type": "bidirectional",
"description": "PORTC pin 3 GPIO with alternate SPI SS, alternate TCA0 WO3 and CCL LUT1-IN0 functions."
},
{
"number": "19",
"name": "PA0/RESET/UPDI",
"type": "bidirectional",
"description": "PORTA pin 0 GPIO that is configured by RSTPINCFG fuse as GPIO, UPDI programming/debug or RESET, also ADC AIN0 and CCL LUT0-IN0; 12 V pulse enables UPDI."
},
{
"number": "20",
"name": "PA1",
"type": "bidirectional",
"description": "PORTA pin 1 GPIO with ADC AIN1, USART TxD (alternate), SPI MOSI and CCL LUT0-IN1 functions."
},
{
"number": "21",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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: Ordering code ATTINY406-MNR is not listed in the ordering table (only ATtiny406-MBT-VAO and -MZT-VAO; The VQFN20 has a 1.7 mm exposed pad (page 506), but the datasheet pinout does not number it or state"
],
"pages_sent": 128,
"cost_usd": 0.7642,
"at": "2026-10-22T22:24:34"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/2dd4cb8bfe7bead1c1c1653e03a5d62b.pdf",
"pages": 523,
"sha256": "de549517d587eb2e",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 21,
"described": 21,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "attiny406-mnr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
3,
3,
0.52
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "0ee4e1082236390795238cd34b082d96efd160d6292c636cc40201a5a30cdc63",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "attiny406-mnr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
3,
3,
0.52
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "c479fff52516101d0df0e4c987c91052fa2c8cef49d0dfbd5cde99768deda471",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "QFN-20-EP(3x3)",
"Category": "Embedded Processors & Controllers",
"Pins": "21"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"attiny406-mnr"
],
"discovery_pitch": "ATTINY406-MNR (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": [
"page.json",
"README.md",
"attiny406-mnr.kicad_sym",
"attiny406-mnr.kicad_mod",
"attiny406-mnr.glb",
"attiny406-mnr.step",
"attiny406-mnr.lbr",
"docs/hero.png",
"docs/attiny406-mnr-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"attiny406-mnr-hero.glb",
"attiny406-mnr-hero.overlay.json",
"attiny406-mnr-etched.glb"
],
"visibility": {
"public": true
}
}