component
M251LE3AE
Public Made by Adomby adom
Nuvoton Tech Microcontroller Units (MCUs/MPUs/SOCs), LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "m251le3ae",
"title": "M251LE3AE",
"brief": "Nuvoton Tech Microcontroller Units (MCUs/MPUs/SOCs), LQFP-48(7x7). 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",
"m251le3ae",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "M251LE3AE",
"manufacturer": "Nuvoton Tech",
"package": "LQFP-48(7x7)",
"pin_count": 48,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/24c09902e8e926636ef9ffd573fda9ac.pdf",
"parts": {
"symbol": "m251le3ae.kicad_sym",
"footprint": "m251le3ae.kicad_mod",
"model_3d": "m251le3ae-hero.glb",
"model_3d_plain": "m251le3ae-etched.glb",
"model_3d_step": "m251le3ae-etched.step",
"model_3d_step_plain": "m251le3ae.step",
"lbr": "m251le3ae.lbr"
},
"distributor_links": {
"lcsc": "C2987952"
},
"distributor_check": {
"checked_at": "2026-10-27T09:49:05Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "PB.5",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 5; the datasheet gives no alternate functions for this pin."
},
{
"number": "2",
"name": "PB.4",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 4; the datasheet gives no alternate functions for this pin."
},
{
"number": "3",
"name": "PB.3",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 3; the datasheet gives no alternate functions for this pin."
},
{
"number": "4",
"name": "PB.2",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 2; the datasheet gives no alternate functions for this pin."
},
{
"number": "5",
"name": "PB.1",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 1; the datasheet gives no alternate functions for this pin."
},
{
"number": "6",
"name": "PB.0",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 0; the datasheet gives no alternate functions for this pin."
},
{
"number": "7",
"name": "PA.11",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 11; the datasheet gives no alternate functions for this pin."
},
{
"number": "8",
"name": "PA.10",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 10; the datasheet gives no alternate functions for this pin."
},
{
"number": "9",
"name": "PA.9",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 9; the datasheet gives no alternate functions for this pin."
},
{
"number": "10",
"name": "PA.8",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 8; the datasheet gives no alternate functions for this pin."
},
{
"number": "11",
"name": "PF.5",
"type": "bidirectional",
"description": "General-purpose I/O port F bit 5; the datasheet gives no alternate functions for this pin."
},
{
"number": "12",
"name": "PF.4",
"type": "bidirectional",
"description": "General-purpose I/O port F bit 4; the datasheet gives no alternate functions for this pin."
},
{
"number": "13",
"name": "PF.3",
"type": "bidirectional",
"description": "General-purpose I/O port F bit 3; the datasheet gives no alternate functions for this pin."
},
{
"number": "14",
"name": "PF.2",
"type": "bidirectional",
"description": "General-purpose I/O port F bit 2; the datasheet gives no alternate functions for this pin."
},
{
"number": "15",
"name": "PA.7",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 7; the datasheet gives no alternate functions for this pin."
},
{
"number": "16",
"name": "PA.6",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 6; the datasheet gives no alternate functions for this pin."
},
{
"number": "17",
"name": "PA.5",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 5; the datasheet gives no alternate functions for this pin."
},
{
"number": "18",
"name": "PA.4",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 4; the datasheet gives no alternate functions for this pin."
},
{
"number": "19",
"name": "PA.3",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 3; the datasheet gives no alternate functions for this pin."
},
{
"number": "20",
"name": "PA.2",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 2; the datasheet gives no alternate functions for this pin."
},
{
"number": "21",
"name": "PA.1",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 1; the datasheet gives no alternate functions for this pin."
},
{
"number": "22",
"name": "PA.0",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 0; the datasheet gives no alternate functions for this pin."
},
{
"number": "23",
"name": "VDDIO",
"type": "power_in",
"description": "Supply pin for the second I/O voltage domain (VAI), which supports 1.65 to 5.5 V for the VAI I/O pins."
},
{
"number": "24",
"name": "nRESET",
"type": "input",
"description": "External reset input pin, active low; the datasheet gives no electrical limits for it."
},
{
"number": "25",
"name": "PF.0",
"type": "bidirectional",
"description": "General-purpose I/O port F bit 0; the datasheet gives no alternate functions for this pin."
},
{
"number": "26",
"name": "PF.1",
"type": "bidirectional",
"description": "General-purpose I/O port F bit 1; the datasheet gives no alternate functions for this pin."
},
{
"number": "27",
"name": "PC.5",
"type": "bidirectional",
"description": "General-purpose I/O port C bit 5; the datasheet gives no alternate functions for this pin."
},
{
"number": "28",
"name": "PC.4",
"type": "bidirectional",
"description": "General-purpose I/O port C bit 4; the datasheet gives no alternate functions for this pin."
},
{
"number": "29",
"name": "PC.3",
"type": "bidirectional",
"description": "General-purpose I/O port C bit 3; the datasheet gives no alternate functions for this pin."
},
{
"number": "30",
"name": "PC.2",
"type": "bidirectional",
"description": "General-purpose I/O port C bit 2; the datasheet gives no alternate functions for this pin."
},
{
"number": "31",
"name": "PC.1",
"type": "bidirectional",
"description": "General-purpose I/O port C bit 1; the datasheet gives no alternate functions for this pin."
},
{
"number": "32",
"name": "PC.0",
"type": "bidirectional",
"description": "General-purpose I/O port C bit 0; the datasheet gives no alternate functions for this pin."
},
{
"number": "33",
"name": "PA.12",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 12; the datasheet gives no alternate functions for this pin."
},
{
"number": "34",
"name": "PA.13",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 13; the datasheet gives no alternate functions for this pin."
},
{
"number": "35",
"name": "PA.14",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 14; the datasheet gives no alternate functions for this pin."
},
{
"number": "36",
"name": "PA.15",
"type": "bidirectional",
"description": "General-purpose I/O port A bit 15; the datasheet gives no alternate functions for this pin."
},
{
"number": "37",
"name": "VSS",
"type": "power_in",
"description": "Digital ground pin."
},
{
"number": "38",
"name": "LDO_CAP",
"type": "passive",
"description": "Pin for the capacitor of the built-in LDO; the datasheet gives no value."
},
{
"number": "39",
"name": "VDD",
"type": "power_in",
"description": "Digital power supply pin; the device supply range is 1.8 V to 5.5 V."
},
{
"number": "40",
"name": "PC.14",
"type": "bidirectional",
"description": "General-purpose I/O port C bit 14; the datasheet gives no alternate functions for this pin."
},
{
"number": "41",
"name": "PB.15",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 15; the datasheet gives no alternate functions for this pin."
},
{
"number": "42",
"name": "PB.14",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 14; the datasheet gives no alternate functions for this pin."
},
{
"number": "43",
"name": "PB.13",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 13; the datasheet gives no alternate functions for this pin."
},
{
"number": "44",
"name": "PB.12",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 12; the datasheet gives no alternate functions for this pin."
},
{
"number": "45",
"name": "AVDD",
"type": "power_in",
"description": "Analog power supply pin; the datasheet gives no separate range for it."
},
{
"number": "46",
"name": "AVSS",
"type": "power_in",
"description": "Analog ground pin."
},
{
"number": "47",
"name": "PB.7",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 7; the datasheet gives no alternate functions for this pin."
},
{
"number": "48",
"name": "PB.6",
"type": "bidirectional",
"description": "General-purpose I/O port B bit 6; the datasheet gives no alternate functions for this pin."
}
],
"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": "vision",
"consensus_model": "claude-opus-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet is a preliminary product brief. The LQFP48 diagram (p.12) shows only pin names. It has; Pin types are inferred from the pin names. The brief has no pin description table. VDDIO is describe",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 12,
"cost_usd": 0.7269,
"at": "2026-10-27T09:48:41"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/24c09902e8e926636ef9ffd573fda9ac.pdf",
"pages": 29,
"sha256": "e325cf55bfc3d3c8",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 48,
"described": 48,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "m251le3ae.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
"checked": "2026-10-27",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "m251le3ae-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "c35d3bbf49617f5cef7a0ef7c53287ef0c0039e99b5b526d9e796e279772b185",
"checked": "2026-10-27",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Nuvoton Tech",
"Package": "LQFP-48(7x7)",
"Category": "Single Chip Microcomputer/Microcontroller",
"Pins": "48"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"m251le3ae"
],
"discovery_pitch": "M251LE3AE (Nuvoton 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",
"m251le3ae.kicad_sym",
"m251le3ae.kicad_mod",
"m251le3ae.glb",
"m251le3ae.step",
"m251le3ae.lbr",
"docs/hero.png",
"docs/m251le3ae-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"m251le3ae-hero.glb",
"m251le3ae-hero.overlay.json",
"m251le3ae-etched.glb"
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"visibility": {
"public": true
}
}