component
ATTINY24A-MUR
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "attiny24a-mur",
"title": "ATTINY24A-MUR",
"brief": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), QFN-20-EP(4x4). 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",
"single chip microcomputer-microcontroller",
"attiny24a-mur",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATTINY24A-MUR",
"manufacturer": "Microchip Tech",
"package": "QFN-20-EP(4x4)",
"pin_count": 21,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/691b0770bd93223ffe7f014b26ceef69.pdf",
"parts": {
"symbol": "attiny24a-mur.kicad_sym",
"footprint": "attiny24a-mur.kicad_mod",
"model_3d": "attiny24a-mur-hero.glb",
"model_3d_plain": "attiny24a-mur-etched.glb",
"model_3d_step": "attiny24a-mur-etched.step",
"model_3d_step_plain": "attiny24a-mur.step",
"lbr": "attiny24a-mur.lbr"
},
"distributor_links": {
"lcsc": "C2053025",
"digikey": "ATTINY24A-MURTR-ND",
"mouser": "556-ATTINY24A-MUR"
},
"distributor_check": {
"checked_at": "2026-11-02T17:36:25Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATTINY24A-MURTR-ND",
"status": "found"
},
"mouser": {
"pn": "556-ATTINY24A-MUR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PA4",
"type": "bidirectional",
"description": "Port A bit 4, a bi-directional I/O pin with internal pull-up, with alternate functions ADC4/USCK/SCL/T1/PCINT4."
},
{
"number": "2",
"name": "PA3",
"type": "bidirectional",
"description": "Port A bit 3, a bi-directional I/O pin with internal pull-up, with alternate functions ADC3/T0/PCINT3."
},
{
"number": "3",
"name": "PA2",
"type": "bidirectional",
"description": "Port A bit 2, a bi-directional I/O pin with internal pull-up, with alternate functions ADC2/AIN1/PCINT2."
},
{
"number": "4",
"name": "PA1",
"type": "bidirectional",
"description": "Port A bit 1, a bi-directional I/O pin with internal pull-up, with alternate functions ADC1/AIN0/PCINT1."
},
{
"number": "5",
"name": "PA0",
"type": "bidirectional",
"description": "Port A bit 0, a bi-directional I/O pin with internal pull-up, with alternate functions ADC0/AREF/PCINT0."
},
{
"number": "6",
"name": "DNC",
"type": "unconnected",
"description": "Do Not Connect."
},
{
"number": "7",
"name": "DNC",
"type": "unconnected",
"description": "Do Not Connect."
},
{
"number": "8",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "9",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage."
},
{
"number": "10",
"name": "DNC",
"type": "unconnected",
"description": "Do Not Connect."
},
{
"number": "11",
"name": "PB0",
"type": "bidirectional",
"description": "Port B bit 0, a bi-directional I/O pin with internal pull-up, with alternate functions PCINT8/XTAL1/CLKI."
},
{
"number": "12",
"name": "PB1",
"type": "bidirectional",
"description": "Port B bit 1, a bi-directional I/O pin with internal pull-up, with alternate functions PCINT9/XTAL2."
},
{
"number": "13",
"name": "PB3",
"type": "bidirectional",
"description": "Port B bit 3 which is also the RESET input (active low, longer than the minimum pulse length resets the device) and dW; it can be used as an I/O pin if the RSTDISBL fuse is programmed ('0')."
},
{
"number": "14",
"name": "PB2",
"type": "bidirectional",
"description": "Port B bit 2, a bi-directional I/O pin with internal pull-up, with alternate functions PCINT10/INT0/OC0A/CKOUT."
},
{
"number": "15",
"name": "PA7",
"type": "bidirectional",
"description": "Port A bit 7, a bi-directional I/O pin with internal pull-up, with alternate functions PCINT7/ICP/OC0B/ADC7."
},
{
"number": "16",
"name": "PA6",
"type": "bidirectional",
"description": "Port A bit 6, a bi-directional I/O pin with internal pull-up, with alternate functions PCINT6/OC1A/SDA/MOSI/DI/ADC6."
},
{
"number": "17",
"name": "DNC",
"type": "unconnected",
"description": "Do Not Connect."
},
{
"number": "18",
"name": "DNC",
"type": "unconnected",
"description": "Do Not Connect."
},
{
"number": "19",
"name": "DNC",
"type": "unconnected",
"description": "Do Not Connect."
},
{
"number": "20",
"name": "PA5",
"type": "bidirectional",
"description": "Port A bit 5, a bi-directional I/O pin with internal pull-up, with alternate functions ADC5/DO/MISO/OC1B/PCINT5."
},
{
"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-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The QFN/MLF pin-to-net mapping was reconstructed from garbled figure text on page 2. Pins 16 (PA6) a; The datasheet gives no headline electrical parameter table for this package variant in the requested"
],
"pages_sent": 22,
"cost_usd": 0.0469,
"at": "2026-11-02T17:36:15"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/691b0770bd93223ffe7f014b26ceef69.pdf",
"pages": 22,
"sha256": "ca5043a11d917274",
"source_tier": "lcsc"
},
"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": "attiny24a-mur.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4,
0.77
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
"checked": "2026-11-02",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "attiny24a-mur-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4,
0.77
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "e2f5f81156e10365fb659bda53655d3f65bfb87103b2bb34ac6c91b4d484ffa9",
"checked": "2026-11-02",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "QFN-20-EP(4x4)",
"Category": "Single Chip Microcomputer/Microcontroller",
"Pins": "21"
},
"appearance": {
"contacts": {
"quote": "– H: NiPdAu lead finish – F, N, U: matte tin",
"page": 11,
"doc": "ds.pdf",
"plating": "tin"
},
"version": 1,
"datasheet_sha256": "ca5043a11d917274ab1486a3246b3158efee0dfb41a3a8e58a1ac8791981ca17"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "ca5043a11d917274ab1486a3246b3158efee0dfb41a3a8e58a1ac8791981ca17",
"rows": [
{
"name": "Operating voltage",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": 1.8,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Industrial temperature range",
"symbol": "",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "Industrial grade (MUR suffix)",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Speed grade",
"symbol": "",
"kind": "recommended_operating",
"unit": "MHz",
"min": 0,
"typ": null,
"max": 20,
"conditions": "4.5 – 5.5V",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Active mode supply current",
"symbol": "",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 210,
"max": null,
"conditions": "1.8V and 1 MHz",
"source_page": 1,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"attiny24a-mur"
],
"discovery_pitch": "ATTINY24A-MUR (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",
"attiny24a-mur.kicad_sym",
"attiny24a-mur.kicad_mod",
"attiny24a-mur.glb",
"attiny24a-mur.step",
"attiny24a-mur.lbr",
"docs/hero.png",
"docs/attiny24a-mur-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"attiny24a-mur-hero.glb",
"attiny24a-mur-hero.overlay.json",
"attiny24a-mur-etched.glb"
],
"visibility": {
"public": true
}
}