component
EFM8LB12F64E-C-QFN32
Public Made by Adomby adom
SILICON LABS Pre-ordered MCUs, QFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"description": "SILICON LABS Pre-ordered MCUs, QFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
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"embedded processors & controllers",
"efm8lb12f64e-c-qfn32",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
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"component": {
"mpn": "EFM8LB12F64E-C-QFN32",
"manufacturer": "SILICON LABS",
"package": "QFN-32-EP(4x4)",
"pin_count": 33,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0fe5101814c8c0abfa6efc96b2aee57c.pdf",
"parts": {
"symbol": "efm8lb12f64e-c-qfn32.kicad_sym",
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"lbr": "efm8lb12f64e-c-qfn32.lbr"
},
"distributor_links": {
"lcsc": "C1340074"
},
"distributor_check": {
"checked_at": "2026-10-23T21:20:25Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "deferred",
"error": "shared DigiKey quota guard: 800 calls left today"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "P0.0",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, supporting P0MAT.0, INT0.0, INT1.0, CLU inputs and the VREF analog function."
},
{
"number": "2",
"name": "VIO",
"type": "power_in",
"description": "I/O supply power input."
},
{
"number": "3",
"name": "VDD",
"type": "power_in",
"description": "Supply power input."
},
{
"number": "4",
"name": "RSTb / C2CK",
"type": "bidirectional",
"description": "Active-low reset and C2 debug clock."
},
{
"number": "5",
"name": "P3.7 / C2D",
"type": "bidirectional",
"description": "Multifunction I/O shared with the C2 debug data signal."
},
{
"number": "6",
"name": "P3.4",
"type": "bidirectional",
"description": "Multifunction I/O."
},
{
"number": "7",
"name": "P3.3",
"type": "bidirectional",
"description": "Multifunction I/O with DAC3 analog function."
},
{
"number": "8",
"name": "P3.2",
"type": "bidirectional",
"description": "Multifunction I/O with DAC2 analog function."
},
{
"number": "9",
"name": "P3.1",
"type": "bidirectional",
"description": "Multifunction I/O with DAC1 analog function."
},
{
"number": "10",
"name": "P3.0",
"type": "bidirectional",
"description": "Multifunction I/O with DAC0 analog function."
},
{
"number": "11",
"name": "P2.6",
"type": "bidirectional",
"description": "Multifunction I/O with ADC0.19 and CMP1P.8/CMP1N.8 analog functions."
},
{
"number": "12",
"name": "P2.5",
"type": "bidirectional",
"description": "Multifunction I/O with CLU3OUT digital function and ADC0.18, CMP1P.7/CMP1N.7 analog functions."
},
{
"number": "13",
"name": "P2.4",
"type": "bidirectional",
"description": "Multifunction I/O with ADC0.17 and CMP1P.6/CMP1N.6 analog functions."
},
{
"number": "14",
"name": "P2.3",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P2MAT.3, CLU inputs, ADC0.16 and CMP1P.5/CMP1N.5."
},
{
"number": "15",
"name": "P2.2",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P2MAT.2, CLU2OUT, ADC0.15 and CMP1P.4/CMP1N.4."
},
{
"number": "16",
"name": "P2.1",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P2MAT.1, I2C0_SCL, ADC0.14 and CMP1P.3/CMP1N.3."
},
{
"number": "17",
"name": "P2.0",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P2MAT.0, I2C0_SDA and CMP1P.2/CMP1N.2."
},
{
"number": "18",
"name": "P1.7",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.7, ADC0.13 and CMP0P.9/CMP0N.9."
},
{
"number": "19",
"name": "P1.6",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.6, CLU inputs and ADC0.12."
},
{
"number": "20",
"name": "P1.5",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.5, CLU inputs and ADC0.11."
},
{
"number": "21",
"name": "P1.4",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.4, CLU inputs and ADC0.10."
},
{
"number": "22",
"name": "P1.3",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.3, CLU inputs and ADC0.9."
},
{
"number": "23",
"name": "P1.2",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.2, ADC0.8 and CMP0P.8/CMP0N.8."
},
{
"number": "24",
"name": "P1.1",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.1, ADC0.7 and CMP0P.7/CMP0N.7."
},
{
"number": "25",
"name": "P1.0",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.0, CLU1OUT, ADC0.6, CMP0P.6/CMP0N.6 and CMP1P.1/CMP1N.1."
},
{
"number": "26",
"name": "P0.7",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P0MAT.7, INT0.7, INT1.7, ADC0.5, CMP0P.5/CMP0N.5 and CMP1P.0/CMP1N.0."
},
{
"number": "27",
"name": "P0.6",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P0MAT.6, CNVSTR, INT0.6, INT1.6, ADC0.4 and CMP0P.4/CMP0N.4."
},
{
"number": "28",
"name": "P0.5",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, UART0_RX, INT0.5, INT1.5, ADC0.3 and CMP0P.3/CMP0N.3."
},
{
"number": "29",
"name": "P0.4",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, UART0_TX, INT0.4, INT1.4, ADC0.2 and CMP0P.2/CMP0N.2."
},
{
"number": "30",
"name": "P0.3",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, EXTCLK, INT0.3, INT1.3 and EXTOSC analog function."
},
{
"number": "31",
"name": "P0.2",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, CLU0OUT, INT0.2, INT1.2, ADC0.1 and CMP0P.1/CMP0N.1."
},
{
"number": "32",
"name": "P0.1",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, INT0.1, INT1.1, ADC0.0, CMP0P.0/CMP0N.0 and AGND."
},
{
"number": "33",
"name": "GND",
"type": "power_in",
"description": "Center ground pad (exposed pad)."
}
],
"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: The datasheet table lists the center pad as 'Center GND' without a pin number. I numbered it 33 for ; Pin types are inferred from the descriptions. Multifunction I/O is mapped to bidirectional, and RSTb",
"1/33 pins cited to the wrong page (name found elsewhere): ['33:GND@p43']"
],
"pages_sent": 45,
"cost_usd": 0.2748,
"at": "2026-10-23T21:19:35"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/0fe5101814c8c0abfa6efc96b2aee57c.pdf",
"pages": 77,
"sha256": "4bb882f3cda45564",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
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"models_3d": [
{
"file": "efm8lb12f64e-c-qfn32.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
4.0,
0.6
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "7b482a511cdf2cf875c31931f9fea7f745b8dac2ea6203531cd6604f40a290cb",
"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "efm8lb12f64e-c-qfn32-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
4.0,
0.6
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "3f207f2beadb59d1eb2a8e30b9b84682ea37b2bc64425e25429c62959d379236",
"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}