EFR32BG21A010F1024IM32-BR

{
  "schema_version": 1,
  "type": "component",
  "slug": "efr32bg21a010f1024im32-br",
  "title": "EFR32BG21A010F1024IM32-BR",
  "brief": "SILICON LABS RF Transceiver ICs, QFN-32-EP(4x4). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "radio frequency chip-antenna",
    "efr32bg21a010f1024im32-br"
  ],
  "component": {
    "mpn": "EFR32BG21A010F1024IM32-BR",
    "manufacturer": "SILICON LABS",
    "package": "QFN-32-EP(4x4)",
    "pin_count": 32,
    "category": "Radio Frequency Chip/Antenna",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588943065603694592",
    "parts": {
      "symbol": "efr32bg21a010f1024im32-br.kicad_sym",
      "footprint": "efr32bg21a010f1024im32-br.kicad_mod",
      "model_3d": "efr32bg21a010f1024im32-br-etched.glb",
      "model_3d_plain": "efr32bg21a010f1024im32-br.glb",
      "model_3d_step": "efr32bg21a010f1024im32-br-etched.step",
      "model_3d_step_plain": "efr32bg21a010f1024im32-br.step",
      "lbr": "efr32bg21a010f1024im32-br.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "PC00",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port C, bit 0. Alternate function: EM4WU6 (EM4 wake-up input 6)."
      },
      {
        "number": "2",
        "name": "PC01",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port C, bit 1."
      },
      {
        "number": "3",
        "name": "PC02",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port C, bit 2."
      },
      {
        "number": "4",
        "name": "PC03",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port C, bit 3."
      },
      {
        "number": "5",
        "name": "PC04",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port C, bit 4."
      },
      {
        "number": "6",
        "name": "PC05",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port C, bit 5. Alternate function: EM4WU7 (EM4 wake-up input 7)."
      },
      {
        "number": "7",
        "name": "HFXTAL_I",
        "type": "input",
        "description": "High Frequency Crystal Oscillator input. Connect one terminal of the HF crystal here."
      },
      {
        "number": "8",
        "name": "HFXTAL_O",
        "type": "output",
        "description": "High Frequency Crystal Oscillator output. Connect the other terminal of the HF crystal here."
      },
      {
        "number": "9",
        "name": "RESETn",
        "type": "input",
        "description": "Active-low device reset input. Drive low to hold the chip in reset; internal pull-up is present."
      },
      {
        "number": "10",
        "name": "RFVDD",
        "type": "power_in",
        "description": "Radio (transceiver) power supply. Nominal 1.8-3.8 V; decouple locally per reference design."
      },
      {
        "number": "11",
        "name": "RFVSS",
        "type": "power_in",
        "description": "Radio ground return. Tie to the PCB ground plane."
      },
      {
        "number": "12",
        "name": "RF2G4_IO2",
        "type": "bidirectional",
        "description": "2.4 GHz RF input/output (differential half). Connect to the matching / balun network for the 2.4 GHz antenna path."
      },
      {
        "number": "13",
        "name": "RF2G4_IO1",
        "type": "bidirectional",
        "description": "2.4 GHz RF input/output (differential half). Connect to the matching / balun network for the 2.4 GHz antenna path."
      },
      {
        "number": "14",
        "name": "PAVDD",
        "type": "power_in",
        "description": "Power Amplifier (PA) supply. Nominal 1.8-3.8 V; sets TX output-power headroom (10 dBm on the -B/-BR OPN)."
      },
      {
        "number": "15",
        "name": "PB01",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port B, bit 1. Alternate function: EM4WU3 (EM4 wake-up input 3)."
      },
      {
        "number": "16",
        "name": "PB00",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port B, bit 0."
      },
      {
        "number": "17",
        "name": "PA00",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port A, bit 0."
      },
      {
        "number": "18",
        "name": "PA01",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port A, bit 1. Default Serial Wire Debug clock (SWCLK)."
      },
      {
        "number": "19",
        "name": "PA02",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port A, bit 2. Default Serial Wire Debug data I/O (SWDIO)."
      },
      {
        "number": "20",
        "name": "PA03",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port A, bit 3. Alternate functions: SWV / TDO / TRACEDATA0."
      },
      {
        "number": "21",
        "name": "PA04",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port A, bit 4. Alternate functions: TDI / TRACECLK."
      },
      {
        "number": "22",
        "name": "PA05",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port A, bit 5. Alternate function: EM4WU0 (EM4 wake-up input 0)."
      },
      {
        "number": "23",
        "name": "PA06",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port A, bit 6."
      },
      {
        "number": "24",
        "name": "DECOUPLE",
        "type": "passive",
        "description": "Decouple output for the on-chip core voltage regulator. An external decoupling capacitor (per reference design) is required from this pin to VSS - do not load with any other supply."
      },
      {
        "number": "25",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital core power supply. Nominal 1.8-3.8 V; decouple locally per reference design."
      },
      {
        "number": "26",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply for on-chip analog blocks (IADC, ACMP, oscillators). Nominal 1.8-3.8 V."
      },
      {
        "number": "27",
        "name": "IOVDD",
        "type": "power_in",
        "description": "Digital I/O power supply. Sets the drive/receive level for the GPIO pads; nominal 1.8-3.8 V."
      },
      {
        "number": "28",
        "name": "PD04",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port D, bit 4."
      },
      {
        "number": "29",
        "name": "PD03",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port D, bit 3."
      },
      {
        "number": "30",
        "name": "PD02",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port D, bit 2. Alternate function: EM4WU9 (EM4 wake-up input 9)."
      },
      {
        "number": "31",
        "name": "PD01",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port D, bit 1. Alternate functions: LFXO.LFXTAL_I / LFXO.LF_EXTCLK (Low Frequency crystal input or external LF clock input)."
      },
      {
        "number": "32",
        "name": "PD00",
        "type": "bidirectional",
        "description": "General-purpose I/O on Port D, bit 0. Alternate function: LFXO.LFXTAL_O (Low Frequency crystal output)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588943065603694592",
        "pages": null,
        "sha256": "f8bfff6a1733a68d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 32,
        "described": 32,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
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        "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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "efr32bg21a010f1024im32-br-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0.0,
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        "sha256": "ec4f928069246ecb4c6af6db4cbcc1b9049bd07c9ddcb6040ff90e71aab0657b",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "SILICON LABS",
      "Package": "QFN-32-EP(4x4)",
      "Category": "Radio Frequency Chip/Antenna",
      "Pins": "32"
    }
  },
  "variants": [
    {
      "mpn": "EFR32BG21A010F1024IM32-BR",
      "kind": "packaging"
    }
  ],
  "sections": [
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  "discovery_triggers": [
    "efr32bg21a010f1024im32-br"
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  "discovery_pitch": "EFR32BG21A010F1024IM32-BR (SILICON LABS) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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  "updated_at": "2026-09-24T20:15:38.648Z"
}