EFR32MG21A020F512IM32-B

{
  "schema_version": 1,
  "type": "component",
  "slug": "efr32mg21a020f512im32-b",
  "title": "EFR32MG21A020F512IM32-B",
  "brief": "SILICON LABS RF Transceiver ICs, QFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "rf & radio",
    "efr32mg21a020f512im32-b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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": {
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        "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"
      },
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        "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
      }
    },
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "SILICON LABS",
      "Package": "QFN-32-EP(4x4)",
      "Category": "RF & Radio",
      "Pins": "33"
    },
    "appearance": {
      "housing": {
        "quote": "4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020 specification for Small Body Components.",
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        "material": "PC"
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          "name": "Total current into VSS ground lines",
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