component
EFM8BB22F16I-C-QFN28
Public Made by Adomby adom
SILICON LABS Pre-ordered MCUs, VQFN-28-EP(5x5). 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": "efm8bb22f16i-c-qfn28",
"version": "0.1.0",
"type": "component",
"description": "SILICON LABS Pre-ordered MCUs, VQFN-28-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"embedded processors & controllers",
"efm8bb22f16i-c-qfn28",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"efm8bb22f16i-c-qfn28.kicad_sym",
"efm8bb22f16i-c-qfn28.kicad_mod",
"efm8bb22f16i-c-qfn28.glb",
"efm8bb22f16i-c-qfn28.step",
"efm8bb22f16i-c-qfn28.lbr",
"docs/hero.png",
"docs/efm8bb22f16i-c-qfn28-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"efm8bb22f16i-c-qfn28-hero.glb",
"efm8bb22f16i-c-qfn28-hero.overlay.json",
"efm8bb22f16i-c-qfn28-etched.glb"
],
"component": {
"mpn": "EFM8BB22F16I-C-QFN28",
"manufacturer": "SILICON LABS",
"package": "VQFN-28-EP(5x5)",
"pin_count": 29,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/70970e0b75ac113f458b89cb70889027.pdf",
"parts": {
"symbol": "efm8bb22f16i-c-qfn28.kicad_sym",
"footprint": "efm8bb22f16i-c-qfn28.kicad_mod",
"model_3d": "efm8bb22f16i-c-qfn28-hero.glb",
"model_3d_plain": "efm8bb22f16i-c-qfn28-etched.glb",
"model_3d_step": "efm8bb22f16i-c-qfn28-etched.step",
"model_3d_step_plain": "efm8bb22f16i-c-qfn28.step",
"lbr": "efm8bb22f16i-c-qfn28.lbr"
},
"distributor_links": {
"lcsc": "C1340864",
"digikey": "336-3642-5-ND",
"mouser": "634-8BB22F16ICQFN28"
},
"distributor_check": {
"checked_at": "2026-11-08T00:40:09Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "336-3642-5-ND",
"status": "found"
},
"mouser": {
"pn": "634-8BB22F16ICQFN28",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "P0.1",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P0MAT.1, INT0.1/INT1.1, ADC0.1, CMP0P.1/CMP0N.1 and AGND analog function."
},
{
"number": "2",
"name": "P0.0",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P0MAT.0, INT0.0/INT1.0, ADC0.0, CMP0P.0/CMP0N.0 and VREF analog function."
},
{
"number": "3",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "4",
"name": "N/C",
"type": "unconnected",
"description": "No connection."
},
{
"number": "5",
"name": "N/C",
"type": "unconnected",
"description": "No connection."
},
{
"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": "P3.1",
"type": "bidirectional",
"description": "Multifunction I/O (no crossbar capability listed)."
},
{
"number": "9",
"name": "RSTb / C2CK",
"type": "bidirectional",
"description": "Active-low reset / C2 debug clock."
},
{
"number": "10",
"name": "P3.0 / C2D",
"type": "bidirectional",
"description": "Multifunction I/O / C2 debug data."
},
{
"number": "11",
"name": "P2.3",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P2MAT.3, ADC0.23, CP1P.12/CP1N.12."
},
{
"number": "12",
"name": "P2.2",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P2MAT.2, ADC0.22, CP1P.11/CP1N.11."
},
{
"number": "13",
"name": "P2.1",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P2MAT.1, ADC0.21, CP1P.10/CP1N.10."
},
{
"number": "14",
"name": "P2.0",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P2MAT.0, ADC0.20, CP1P.9/CP1N.9."
},
{
"number": "15",
"name": "P1.7",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.7, ADC0.15, CP1P.7/CP1N.7."
},
{
"number": "16",
"name": "P1.6",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.6, I2C0_SCL, ADC0.14, CP1P.6/CP1N.6."
},
{
"number": "17",
"name": "P1.5",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.5, I2C0_SDA, ADC0.13, CP1P.5/CP1N.5."
},
{
"number": "18",
"name": "P1.4",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.4, ADC0.12, CP1P.4/CP1N.4."
},
{
"number": "19",
"name": "P1.3",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.3, ADC0.11, CP1P.3/CP1N.3."
},
{
"number": "20",
"name": "P1.2",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.2, ADC0.10, CP1P.2/CP1N.2."
},
{
"number": "21",
"name": "P1.1",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.1, ADC0.9, CP1P.1/CP1N.1, CMP0P.10/CMP0N.10."
},
{
"number": "22",
"name": "P1.0",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P1MAT.0, ADC0.8, CP1P.0/CP1N.0, CMP0P.9/CMP0N.9."
},
{
"number": "23",
"name": "P0.7",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P0MAT.7, INT0.7/INT1.7, ADC0.7, CMP0P.7/CMP0N.7."
},
{
"number": "24",
"name": "P0.6",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P0MAT.6, CNVSTR, INT0.6/INT1.6, ADC0.6, CMP0P.6/CMP0N.6."
},
{
"number": "25",
"name": "P0.5",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P0MAT.5, INT0.5/INT1.5, UART0_RX, ADC0.5, CMP0P.5/CMP0N.5."
},
{
"number": "26",
"name": "P0.4",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P0MAT.4, INT0.4/INT1.4, UART0_TX, ADC0.4, CMP0P.4/CMP0N.4."
},
{
"number": "27",
"name": "P0.3",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P0MAT.3, EXTCLK, INT0.3/INT1.3, ADC0.3, CMP0P.3/CMP0N.3."
},
{
"number": "28",
"name": "P0.2",
"type": "bidirectional",
"description": "Multifunction I/O with crossbar capability, P0MAT.2, INT0.2/INT1.2, ADC0.2, CMP0P.2/CMP0N.2."
},
{
"number": "29",
"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-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Datasheet prints the exposed pad number as 'Center'; it was assigned '29' by convention.; Pin 9 is named 'RST / C2CK' in Table 6.1 but 'RSTb / C2CK' in Figure 6.1; 'RSTb' was used. Table 6.1; Pin 6 VDD is described as both supply input and 5V regulator output; typed power_in.",
"1/29 pins cited to the wrong page (name found elsewhere): ['29:GND@p38']"
],
"pages_sent": 29,
"cost_usd": 0.1339,
"at": "2026-11-08T00:40:01"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/70970e0b75ac113f458b89cb70889027.pdf",
"pages": 59,
"sha256": "68db19b3e729b537",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 29,
"described": 29,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "efm8bb22f16i-c-qfn28.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5.0,
5.0,
0.92
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "e9d6d740f505b03e5aa0ac826330f9e269344b84656d051f50eb07ac162749eb",
"checked": "2026-11-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "efm8bb22f16i-c-qfn28-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5.0,
5.0,
0.92
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "9cebd9517288df3ddd74cd863fe13a4026505ca0bfb76a434aa77ab8a7164314",
"checked": "2026-11-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}