EFM8LB12F32ES0-C-QFN24R

{
  "schema_version": 1,
  "type": "component",
  "slug": "efm8lb12f32es0-c-qfn24r",
  "title": "EFM8LB12F32ES0-C-QFN24R",
  "brief": "SILICON LABS Microcontroller Units (MCUs/MPUs/SOCs), QFN-24-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.1",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "single chip microcomputer-microcontroller",
    "efm8lb12f32es0-c-qfn24r",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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
      },
      "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,
        "centre_offset_mm": 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,
        "centre_offset_mm": 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,
        "range_mm": [
          null,
          null
        ]
      },
      "E1": {
        "nom_mm": 3,
        "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"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "SILICON LABS",
      "Package": "QFN-24-EP(3x3)",
      "Category": "Single Chip Microcomputer/Microcontroller",
      "Pins": "25"
    },
    "appearance": {
      "housing": {
        "quote": "4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020C specification for Small Body Components.",
        "page": 60,
        "doc": "ds.pdf",
        "material": "PC"
      },
      "version": 1,
      "datasheet_sha256": "4bb882f3cda45564cf35a17031305fa9af3d1bdfdbb9453e5927ea38a8a3e41e"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4bb882f3cda45564cf35a17031305fa9af3d1bdfdbb9453e5927ea38a8a3e41e",
      "rows": [
        {
          "name": "Operating Supply Voltage on VDD",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.2,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 18,
          "source": "datasheet"
        },
        {
          "name": "Operating Supply Voltage on VIO",
          "symbol": "VIO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 18,
          "source": "datasheet"
        },
        {
          "name": "Operating Supply Voltage on VIO (second row, no symbol printed)",
          "symbol": "VIO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.713,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 18,
          "source": "datasheet"
        },
        {
          "name": "System Clock Frequency",
          "symbol": "fSYSCLK",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 73.5,
          "conditions": "",
          "source_page": 18,
          "source": "datasheet"
        },
        {
          "name": "Operating Ambient Temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 18,
          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature Under Bias",
          "symbol": "TBIAS",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Voltage on VDD",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 4.2,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Voltage on I/O pins or RSTb (VIO > 3.3 V)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5.8,
          "conditions": "VIO > 3.3 V",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Total Current Sunk into Supply Pin",
          "symbol": "IVDD",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Total Current Sourced out of Ground Pin",
          "symbol": "IGND",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": 400,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Current Sourced or Sunk by any I/O Pin or RSTb",
          "symbol": "IIO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 130,
          "conditions": "TA = -40 °C to 105 °C",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Normal Mode full speed from flash",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 12.9,
          "max": 15,
          "conditions": "FSYSCLK = 72 MHz (HFOSC1)",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Normal Mode full speed from flash",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4.2,
          "max": 5,
          "conditions": "FSYSCLK = 24.5 MHz (HFOSC0)",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Normal Mode full speed from flash",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 625,
          "max": 1050,
          "conditions": "FSYSCLK = 1.53 MHz (HFOSC0)",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Normal Mode full speed from flash",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 155,
          "max": 575,
          "conditions": "FSYSCLK = 80 kHz",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Idle Mode",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 9.6,
          "max": 11.1,
          "conditions": "FSYSCLK = 72 MHz (HFOSC1)",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Idle Mode",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.14,
          "max": 3.8,
          "conditions": "FSYSCLK = 24.5 MHz (HFOSC0)",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Idle Mode",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 520,
          "max": 950,
          "conditions": "FSYSCLK = 1.53 MHz (HFOSC0)",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Idle Mode",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 135,
          "max": 550,
          "conditions": "FSYSCLK = 80 kHz",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Suspend Mode",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 125,
          "max": 545,
          "conditions": "LFO Running",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Snooze Mode",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 23,
          "max": 430,
          "conditions": "LFO Running",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Stop Mode",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 120,
          "max": 535,
          "conditions": "Internal LDO On, Supply monitor off",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Digital Core Supply Current, Shutdown Mode",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.2,
          "max": 2.1,
          "conditions": "Internal LDO Off, Supply monitor off",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "High-Frequency Oscillator 0 Supply Current",
          "symbol": "IHFOSC0",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 120,
          "max": 135,
          "conditions": "Operating at 24.5 MHz, TA = 25 °C",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "High-Frequency Oscillator 1 Supply Current",
          "symbol": "IHFOSC1",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 1285,
          "max": 1340,
          "conditions": "Operating at 72 MHz, TA = 25 °C",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Low-Frequency Oscillator Supply Current",
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