component
EFM8UB20F64G-B-QFP32
Public Made by Adomby adom
SILICON LABS Pre-ordered MCUs, QFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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Ray
Publish 0.1.0
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{
"slug": "efm8ub20f64g-b-qfp32",
"version": "0.1.0",
"type": "component",
"description": "SILICON LABS Pre-ordered MCUs, QFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"embedded processors & controllers",
"efm8ub20f64g-b-qfp32",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
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"README.md",
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"efm8ub20f64g-b-qfp32.lbr",
"docs/hero.png",
"docs/efm8ub20f64g-b-qfp32-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
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],
"component": {
"mpn": "EFM8UB20F64G-B-QFP32",
"manufacturer": "SILICON LABS",
"package": "QFP-32(7x7)",
"pin_count": 32,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0d08b3417abb081537bb7e6c1f30209d.pdf",
"parts": {
"symbol": "efm8ub20f64g-b-qfp32.kicad_sym",
"footprint": "efm8ub20f64g-b-qfp32.kicad_mod",
"model_3d": "efm8ub20f64g-b-qfp32-hero.glb",
"model_3d_plain": "efm8ub20f64g-b-qfp32.glb",
"model_3d_step": "efm8ub20f64g-b-qfp32-etched.step",
"model_3d_step_plain": "efm8ub20f64g-b-qfp32.step",
"lbr": "efm8ub20f64g-b-qfp32.lbr"
},
"distributor_links": {
"lcsc": "C1342233",
"digikey": "EFM8UB20F64G-B-QFP32-ND",
"mouser": "634-EFM8UBF64GBQFP32"
},
"distributor_check": {
"checked_at": "2026-11-13T20:32:39Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "EFM8UB20F64G-B-QFP32-ND",
"status": "found"
},
"mouser": {
"pn": "634-EFM8UBF64GBQFP32",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "P0.1",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with INT0.1/INT1.1 external interrupt, ADC0P.18/ADC0N.18 and CMP0N.4 analog functions."
},
{
"number": "2",
"name": "P0.0",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with INT0.0/INT1.0 external interrupt, ADC0P.17/ADC0N.17 and CMP0P.4 analog functions."
},
{
"number": "3",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "4",
"name": "D+",
"type": "bidirectional",
"description": "USB Data Positive."
},
{
"number": "5",
"name": "D-",
"type": "bidirectional",
"description": "USB Data Negative."
},
{
"number": "6",
"name": "VDD",
"type": "power_in",
"description": "Supply power input / 5V regulator output."
},
{
"number": "7",
"name": "VREGIN",
"type": "power_in",
"description": "5V regulator input."
},
{
"number": "8",
"name": "VBUS",
"type": "power_in",
"description": "USB VBUS sense input."
},
{
"number": "9",
"name": "RSTb / C2CK",
"type": "bidirectional",
"description": "Active-low reset and C2 debug clock."
},
{
"number": "10",
"name": "P3.0 / C2D",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O shared with C2 debug data, with ADC0P.16/ADC0N.16 analog functions."
},
{
"number": "11",
"name": "P2.7",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.15/ADC0N.15 analog functions."
},
{
"number": "12",
"name": "P2.6",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.14/ADC0N.14 analog functions."
},
{
"number": "13",
"name": "P2.5",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.13/ADC0N.13 and CMP0N.3 analog functions."
},
{
"number": "14",
"name": "P2.4",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.12/ADC0N.12 and CMP0P.3 analog functions."
},
{
"number": "15",
"name": "P2.3",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.11/ADC0N.11 and CMP1N.2 analog functions."
},
{
"number": "16",
"name": "P2.2",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.10/ADC0N.10 and CMP1P.2 analog functions."
},
{
"number": "17",
"name": "P2.1",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.9/ADC0N.9 and CMP0N.2 analog functions."
},
{
"number": "18",
"name": "P2.0",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.8/ADC0N.8 and CMP0P.2 analog functions."
},
{
"number": "19",
"name": "P1.7",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.7/ADC0N.7 and CMP1N.1 analog functions."
},
{
"number": "20",
"name": "P1.6",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.6/ADC0N.6 and CMP1P.1 analog functions."
},
{
"number": "21",
"name": "P1.5",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.5/ADC0N.5 and CMP0N.1 analog functions."
},
{
"number": "22",
"name": "P1.4",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.4/ADC0N.4 and CMP0P.1 analog functions."
},
{
"number": "23",
"name": "P1.3",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.3/ADC0N.3 and CMP1N.0 analog functions."
},
{
"number": "24",
"name": "P1.2",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.2/ADC0N.2 and CMP1P.0 analog functions."
},
{
"number": "25",
"name": "P1.1",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.1/ADC0N.1 and CMP0N.0 analog functions."
},
{
"number": "26",
"name": "P1.0",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with ADC0P.0/ADC0N.0 and CMP0P.0 analog functions."
},
{
"number": "27",
"name": "P0.7",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with INT0.7/INT1.7 external interrupt and VREF function."
},
{
"number": "28",
"name": "P0.6",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with CNVSTR and INT0.6/INT1.6 external interrupt."
},
{
"number": "29",
"name": "P0.5",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with UART0_RX, INT0.5/INT1.5, ADC0P.20/ADC0N.20 and CMP1N.4."
},
{
"number": "30",
"name": "P0.4",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with UART0_TX, INT0.4/INT1.4, ADC0P.19/ADC0N.19 and CMP1P.4."
},
{
"number": "31",
"name": "P0.3",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with EXTCLK and INT0.3/INT1.3 external interrupt."
},
{
"number": "32",
"name": "P0.2",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O with INT0.2/INT1.2 external interrupt."
}
],
"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: Pin 9 (RST / C2CK) and pin 10 (P3.0 / C2D) are shared with debug functions. Pin 9 was classed as inp; VBUS is listed only as 'USB VBUS Sense Input'; the input ERC class was my classification, not a data; D+ and D- were classed as bidirectional by me; the datasheet only calls them USB Data Positive/Negat"
],
"pages_sent": 30,
"cost_usd": 0.1793,
"at": "2026-11-13T20:32:28"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/0d08b3417abb081537bb7e6c1f30209d.pdf",
"pages": 57,
"sha256": "6022323e8bbca04e",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 32,
"described": 32,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "efm8ub20f64g-b-qfp32.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9.0,
9.0,
1.5
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "be0e412f1c66fee70039b0e109e0cc7c823161dda97593718afa97569bc61ce3",
"checked": "2026-11-13",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "efm8ub20f64g-b-qfp32-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9.0,
9.0,
1.5
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "b6b18b7115d468ab7b4e2eb6b31773484704efc464d791c3cb9c7e475e65ae0a",
"checked": "2026-11-13",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "QFP32",
"source_page": 46,
"D": {
"nom_mm": 7.0,
"range_mm": [
null,
null
]
},
"E1": {
"nom_mm": 7.0,
"range_mm": [
null,
null
]
},
"E": {
"nom_mm": 9.0,
"range_mm": [
null,
null
]
},
"e": {
"nom_mm": 0.8,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 1.6,
"range_mm": [
null,
1.6
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "efm8ub20f64g-b-qfp32.step",
"verdict": "PASS",
"reasons": [
"height and body within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}