component
EFR32MG21A020F512IM32-B
Public Made by Adomby adom
SILICON LABS RF Transceiver ICs, QFN-32-EP(4x4). 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": "efr32mg21a020f512im32-b",
"version": "0.1.0",
"type": "component",
"description": "SILICON LABS RF Transceiver ICs, QFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"rf & radio",
"efr32mg21a020f512im32-b",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"efr32mg21a020f512im32-b.kicad_sym",
"efr32mg21a020f512im32-b.kicad_mod",
"efr32mg21a020f512im32-b.glb",
"efr32mg21a020f512im32-b.step",
"efr32mg21a020f512im32-b.lbr",
"docs/hero.png",
"docs/efr32mg21a020f512im32-b-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"efr32mg21a020f512im32-b-hero.glb",
"efr32mg21a020f512im32-b-hero.overlay.json",
"efr32mg21a020f512im32-b-etched.glb"
],
"component": {
"mpn": "EFR32MG21A020F512IM32-B",
"manufacturer": "SILICON LABS",
"package": "QFN-32-EP(4x4)",
"pin_count": 33,
"category": "RF & Radio",
"subcategory": "RF Transceiver ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b6487d297df8c221eb0e4e2c75a11d63.pdf",
"parts": {
"symbol": "efr32mg21a020f512im32-b.kicad_sym",
"footprint": "efr32mg21a020f512im32-b.kicad_mod",
"model_3d": "efr32mg21a020f512im32-b-hero.glb",
"model_3d_plain": "efr32mg21a020f512im32-b-etched.glb",
"model_3d_step": "efr32mg21a020f512im32-b-etched.step",
"model_3d_step_plain": "efr32mg21a020f512im32-b.step",
"lbr": "efr32mg21a020f512im32-b.lbr"
},
"distributor_links": {
"lcsc": "C1558434",
"digikey": "EFR32MG21A020F512IM32-B-ND",
"mouser": "634-MG21A020F51232B"
},
"distributor_check": {
"checked_at": "2026-10-30T22:32:43Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "EFR32MG21A020F512IM32-B-ND",
"status": "found"
},
"mouser": {
"pn": "634-MG21A020F51232B",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PC00",
"type": "bidirectional",
"description": "General-purpose I/O pin PC00, which also has the alternate function GPIO.EM4WU6 per Table 6.2."
},
{
"number": "2",
"name": "PC01",
"type": "bidirectional",
"description": "General-purpose I/O pin PC01 as listed in the QFN32 pinout table."
},
{
"number": "3",
"name": "PC02",
"type": "bidirectional",
"description": "General-purpose I/O pin PC02 as listed in the QFN32 pinout table."
},
{
"number": "4",
"name": "PC03",
"type": "bidirectional",
"description": "General-purpose I/O pin PC03 as listed in the QFN32 pinout table."
},
{
"number": "5",
"name": "PC04",
"type": "bidirectional",
"description": "General-purpose I/O pin PC04 as listed in the QFN32 pinout table."
},
{
"number": "6",
"name": "PC05",
"type": "bidirectional",
"description": "General-purpose I/O pin PC05, which also has the alternate function GPIO.EM4WU7 per Table 6.2."
},
{
"number": "7",
"name": "HFXTAL_I",
"type": "input",
"description": "High frequency crystal oscillator input for the HFXO."
},
{
"number": "8",
"name": "HFXTAL_O",
"type": "output",
"description": "High frequency crystal oscillator output for the HFXO."
},
{
"number": "9",
"name": "RESETn",
"type": "input",
"description": "Active-low reset pin; its input thresholds are proportional to DVDD per the GPIO note in Section 4.1.9."
},
{
"number": "10",
"name": "RFVDD",
"type": "power_in",
"description": "Radio power supply pin."
},
{
"number": "11",
"name": "RFVSS",
"type": "power_in",
"description": "Radio ground pin."
},
{
"number": "12",
"name": "RF2G4_IO2",
"type": "bidirectional",
"description": "2.4 GHz RF input/output pin that connects to the antenna interface and the integrated switch path."
},
{
"number": "13",
"name": "RF2G4_IO1",
"type": "bidirectional",
"description": "2.4 GHz RF input/output pin that connects to the antenna interface and the integrated switch path."
},
{
"number": "14",
"name": "PAVDD",
"type": "power_in",
"description": "Power amplifier (PA) power supply pin."
},
{
"number": "15",
"name": "PB01",
"type": "bidirectional",
"description": "General-purpose I/O pin PB01, which also has the alternate function GPIO.EM4WU3 per Table 6.2."
},
{
"number": "16",
"name": "PB00",
"type": "bidirectional",
"description": "General-purpose I/O pin PB00 as listed in the QFN32 pinout table."
},
{
"number": "17",
"name": "PA00",
"type": "bidirectional",
"description": "General-purpose I/O pin PA00 as listed in the QFN32 pinout table."
},
{
"number": "18",
"name": "PA01",
"type": "bidirectional",
"description": "General-purpose I/O pin PA01, which also has the alternate function GPIO.SWCLK per Table 6.2."
},
{
"number": "19",
"name": "PA02",
"type": "bidirectional",
"description": "General-purpose I/O pin PA02, which also has the alternate function GPIO.SWDIO per Table 6.2."
},
{
"number": "20",
"name": "PA03",
"type": "bidirectional",
"description": "General-purpose I/O pin PA03, which also has the alternate functions GPIO.SWV, GPIO.TDO and GPIO.TRACEDATA0 per Table 6.2."
},
{
"number": "21",
"name": "PA04",
"type": "bidirectional",
"description": "General-purpose I/O pin PA04, which also has the alternate functions GPIO.TDI and GPIO.TRACECLK per Table 6.2."
},
{
"number": "22",
"name": "PA05",
"type": "bidirectional",
"description": "General-purpose I/O pin PA05, which also has the alternate function GPIO.EM4WU0 per Table 6.2."
},
{
"number": "23",
"name": "PA06",
"type": "bidirectional",
"description": "General-purpose I/O pin PA06 as listed in the QFN32 pinout table."
},
{
"number": "24",
"name": "DECOUPLE",
"type": "power_out",
"description": "Decouple output for the on-chip voltage regulator; an external decoupling capacitor is required at this pin."
},
{
"number": "25",
"name": "DVDD",
"type": "power_in",
"description": "Digital power supply pin."
},
{
"number": "26",
"name": "AVDD",
"type": "power_in",
"description": "Analog power supply pin; the ADC main analog supply range is 1.71 V to 3.8 V."
},
{
"number": "27",
"name": "IOVDD",
"type": "power_in",
"description": "Digital I/O power supply pin that sets the GPIO input thresholds (0.3*IOVDD low, 0.7*IOVDD high)."
},
{
"number": "28",
"name": "PD04",
"type": "bidirectional",
"description": "General-purpose I/O pin PD04 as listed in the QFN32 pinout table."
},
{
"number": "29",
"name": "PD03",
"type": "bidirectional",
"description": "General-purpose I/O pin PD03 as listed in the QFN32 pinout table."
},
{
"number": "30",
"name": "PD02",
"type": "bidirectional",
"description": "General-purpose I/O pin PD02, which also has the alternate function GPIO.EM4WU9 per Table 6.2."
},
{
"number": "31",
"name": "PD01",
"type": "bidirectional",
"description": "General-purpose I/O pin PD01, which also has the alternate functions LFXO.LFXTAL_I and LFXO.LF_EXTCLK per Table 6.2."
},
{
"number": "32",
"name": "PD00",
"type": "bidirectional",
"description": "General-purpose I/O pin PD00, which also has the alternate function LFXO.LFXTAL_O per Table 6.2."
},
{
"number": "33",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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 package hint says QFN-32-EP(4x4). The ordering table lists this MPN in a 'QFN32' package, and th"
],
"pages_sent": 35,
"cost_usd": 0.0376,
"at": "2026-10-30T22:32:30"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/b6487d297df8c221eb0e4e2c75a11d63.pdf",
"pages": 76,
"sha256": "cf5d9c7d572ffdb5",
"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",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "efr32mg21a020f512im32-b.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": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "efr32mg21a020f512im32-b-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": "a0f4d01845025cb961ca69d5bbd361280c3a1904c3291a23d4d8521c0303b75a",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}