component
EFM8LB12F32ES0-C-QFN24R
Public Made by Adomby adom
SILICON LABS Microcontroller Units (MCUs/MPUs/SOCs), QFN-24-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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Publish 0.1.1
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{
"slug": "efm8lb12f32es0-c-qfn24r",
"version": "0.1.1",
"type": "component",
"description": "SILICON LABS Microcontroller Units (MCUs/MPUs/SOCs), QFN-24-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"single chip microcomputer-microcontroller",
"efm8lb12f32es0-c-qfn24r",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"efm8lb12f32es0-c-qfn24r.kicad_sym",
"efm8lb12f32es0-c-qfn24r.kicad_mod",
"efm8lb12f32es0-c-qfn24r.glb",
"efm8lb12f32es0-c-qfn24r.step",
"efm8lb12f32es0-c-qfn24r.lbr",
"docs/hero.png",
"docs/efm8lb12f32es0-c-qfn24r-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"efm8lb12f32es0-c-qfn24r-hero.glb",
"efm8lb12f32es0-c-qfn24r-hero.overlay.json"
],
"component": {
"mpn": "EFM8LB12F32ES0-C-QFN24R",
"manufacturer": "SILICON LABS",
"package": "QFN-24-EP(3x3)",
"pin_count": 25,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0fe5101814c8c0abfa6efc96b2aee57c.pdf",
"parts": {
"symbol": "efm8lb12f32es0-c-qfn24r.kicad_sym",
"footprint": "efm8lb12f32es0-c-qfn24r.kicad_mod",
"model_3d": "efm8lb12f32es0-c-qfn24r-hero.glb",
"model_3d_plain": "efm8lb12f32es0-c-qfn24r.glb",
"model_3d_step": "efm8lb12f32es0-c-qfn24r-etched.step",
"model_3d_step_plain": "efm8lb12f32es0-c-qfn24r.step",
"lbr": "efm8lb12f32es0-c-qfn24r.lbr"
},
"distributor_links": {
"lcsc": "C2054373",
"digikey": "2832-EFM8LB12F32ES0-C-QFN24R-ND",
"mouser": "634-LB12F32ES0CFN24R"
},
"distributor_check": {
"checked_at": "2026-11-13T03:31:53Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "2832-EFM8LB12F32ES0-C-QFN24R-ND",
"status": "found"
},
"mouser": {
"pn": "634-LB12F32ES0CFN24R",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "P0.1",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, port match P0MAT.1, INT0.1/INT1.1, CLU0B.8, CLU2A.9, CLU3B.9, ADC0.0, CMP0P.0/CMP0N.0 and AGND analog functions."
},
{
"number": "2",
"name": "P0.0",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, port match P0MAT.0, INT0.0/INT1.0, CLU0A.8, CLU2A.8, CLU3B.8 and VREF analog function."
},
{
"number": "3",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "4",
"name": "VDD / VIO",
"type": "power_in",
"description": "Supply power input; VDD and VIO are bonded to the same pin, with VDD operating range 2.2 V to 3.6 V."
},
{
"number": "5",
"name": "RSTb / C2CK",
"type": "bidirectional",
"description": "Active-low reset input and C2 debug clock."
},
{
"number": "6",
"name": "P3.0 / C2D",
"type": "bidirectional",
"description": "Multifunction I/O shared with C2 debug data; also the bootloader mode entry pin on QFN24."
},
{
"number": "7",
"name": "P2.3",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, port match P2MAT.3, CLU1B.15, CLU2B.15, CLU3A.15 and DAC3 output."
},
{
"number": "8",
"name": "P2.2",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, port match P2MAT.2, CLU1A.15, CLU2B.14, CLU3A.14 and DAC2 output."
},
{
"number": "9",
"name": "P2.1",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, port match P2MAT.1, CLU1B.14, CLU2A.15, CLU3B.15 and DAC1 output."
},
{
"number": "10",
"name": "P2.0",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, port match P2MAT.0, CLU1A.14, CLU2A.14, CLU3B.14 and DAC0 output."
},
{
"number": "11",
"name": "P1.6",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P1MAT.6, CLU3OUT, CLU0A.15, CLU1B.12, CLU2A.12, ADC0.11 and CMP1P.5/CMP1N.5."
},
{
"number": "12",
"name": "P1.5",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P1MAT.5, CLU2OUT, CLU0B.14, CLU1A.13, CLU2B.13, ADC0.10 and CMP1P.4/CMP1N.4."
},
{
"number": "13",
"name": "P1.4",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P1MAT.4, I2C0_SCL, CLU0A.14, CLU1A.12, CLU2B.12, ADC0.9 and CMP1P.3/CMP1N.3."
},
{
"number": "14",
"name": "P1.3",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P1MAT.3, I2C0_SDA, CLU0B.13, CLU1B.11, CLU2B.11, CLU3A.13 and CMP1P.2/CMP1N.2."
},
{
"number": "15",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "16",
"name": "P1.2",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P1MAT.2, CLU0A.13, CLU1A.11, CLU2B.10, CLU3A.12 and ADC0.8."
},
{
"number": "17",
"name": "P1.1",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P1MAT.1, CLU0B.12, CLU1B.10, CLU2A.11, CLU3B.13 and ADC0.7."
},
{
"number": "18",
"name": "P1.0",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P1MAT.0, CLU0A.12, CLU1A.10, CLU2A.10, CLU3B.12 and ADC0.6."
},
{
"number": "19",
"name": "P0.7",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P0MAT.7, INT0.7/INT1.7, CLU1OUT, CLU0B.11, CLU1B.9, CLU3A.11, ADC0.5, CMP0P.5/CMP0N.5 and CMP1P.1/CMP1N.1."
},
{
"number": "20",
"name": "P0.6",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P0MAT.6, CNVSTR, INT0.6/INT1.6, CLU0A.11, CLU1B.8, CLU3A.10, ADC0.4, CMP0P.4/CMP0N.4 and CMP1P.0/CMP1N.0."
},
{
"number": "21",
"name": "P0.5",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P0MAT.5, INT0.5/INT1.5, UART0_RX, CLU0B.10, CLU1A.9, CLU3B.11, ADC0.3 and CMP0P.3/CMP0N.3."
},
{
"number": "22",
"name": "P0.4",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P0MAT.4, INT0.4/INT1.4, UART0_TX, CLU0A.10, CLU1A.8, CLU3B.10, ADC0.2 and CMP0P.2/CMP0N.2."
},
{
"number": "23",
"name": "P0.3",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P0MAT.3, EXTCLK, INT0.3/INT1.3, CLU0B.9, CLU2B.9, CLU3A.9 and EXTOSC analog function."
},
{
"number": "24",
"name": "P0.2",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar, P0MAT.2, INT0.2/INT1.2, CLU0OUT, CLU0A.9, CLU2B.8, CLU3A.8, ADC0.1 and CMP0P.1/CMP0N.1."
},
{
"number": "25",
"name": "GND",
"type": "power_in",
"description": "Center exposed pad, Ground."
}
],
"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 datasheet lists the QFN24 center pad as 'Center GND' without a pin number, so it is labeled EP h; Pin 4 is shared VDD/VIO in the QFN24 package (Table 6.3); the datasheet does not give a separate VIO; Bootloader pin roles (P0.2 SDA1, P0.3 SCL1) are taken from Table 3.2 for S0 part numbers; the device",
"exposed pad 25 added from the footprint",
"dropped thermal pad ['EP'] absent from footprint"
],
"pages_sent": 77,
"cost_usd": 0.0402,
"at": "2026-11-13T03:31:35"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/0fe5101814c8c0abfa6efc96b2aee57c.pdf",
"pages": 77,
"sha256": "4bb882f3cda45564",
"source_tier": "lcsc"
},
"cad": "land: KiCad official (CC-BY-SA 4.0); 3D: generated from the datasheet",
"model_3d_generated": {
"generator": "factory/gen_pkg3d.py",
"family": "QFN",
"height_mm": 0.85,
"height_basis": "datasheet A, nominal",
"standoff_mm": 0.0
},
"pins": {
"total": 25,
"described": 25,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "efm8lb12f32es0-c-qfn24r.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
3.02,
3.02,
0.85
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "885d8378d249ec52ce737ecae7bff3f2643e01a99fca726185d2817cfcf59136",
"checked": "2026-11-13",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "efm8lb12f32es0-c-qfn24r-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
3.02,
3.02,
0.85
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "651f00c0b8bc87a8732fec4aead4cef2e6ff6d6b9231b53edb6e0d4832f75299",
"checked": "2026-11-13",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "QFN24",
"source_page": 68,
"D": {
"nom_mm": 3.0,
"range_mm": [
null,
null
]
},
"E1": {
"nom_mm": 3.0,
"range_mm": [
null,
null
]
},
"e": {
"nom_mm": 0.4,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 0.85,
"range_mm": [
0.8,
0.9
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "efm8lb12f32es0-c-qfn24r.step",
"verdict": "PASS",
"reasons": [
"height within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}