EFM8SB20F32G-B-QFP32

{
  "schema_version": 1,
  "type": "component",
  "slug": "efm8sb20f32g-b-qfp32",
  "title": "EFM8SB20F32G-B-QFP32",
  "brief": "SILICON LABS Pre-ordered MCUs, QFP-32(7x7). 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",
    "embedded processors & controllers",
    "efm8sb20f32g-b-qfp32",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "EFM8SB20F32G-B-QFP32",
    "manufacturer": "SILICON LABS",
    "package": "QFP-32(7x7)",
    "pin_count": 32,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c994f29e46cd6ed624d13285dc82f4b7.pdf",
    "parts": {
      "symbol": "efm8sb20f32g-b-qfp32.kicad_sym",
      "footprint": "efm8sb20f32g-b-qfp32.kicad_mod",
      "model_3d": "efm8sb20f32g-b-qfp32-hero.glb",
      "model_3d_plain": "efm8sb20f32g-b-qfp32.glb",
      "model_3d_step": "efm8sb20f32g-b-qfp32-etched.step",
      "model_3d_step_plain": "efm8sb20f32g-b-qfp32.step",
      "lbr": "efm8sb20f32g-b-qfp32.lbr"
    },
    "distributor_links": {
      "lcsc": "C1340048",
      "digikey": "EFM8SB20F32G-B-QFP32-ND",
      "mouser": "634-EFM8SBF32GBQFP32"
    },
    "distributor_check": {
      "checked_at": "2026-11-13T20:36:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "EFM8SB20F32G-B-QFP32-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "634-EFM8SBF32GBQFP32",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "N/C",
        "type": "unconnected",
        "description": "No connection; the pin definitions table lists this pin as no connection."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin for the device."
      },
      {
        "number": "3",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply power input; the device is specified for a single supply of 1.8 to 3.6 V."
      },
      {
        "number": "4",
        "name": "N/C",
        "type": "unconnected",
        "description": "No connection; the pin definitions table lists this pin as no connection."
      },
      {
        "number": "5",
        "name": "N/C",
        "type": "unconnected",
        "description": "No connection; the pin definitions table lists this pin as no connection."
      },
      {
        "number": "6",
        "name": "RSTb / C2CK",
        "type": "input",
        "description": "Active-low reset input that is also the C2 debug clock (C2CK)."
      },
      {
        "number": "7",
        "name": "P2.7 / C2D",
        "type": "bidirectional",
        "description": "Multifunction I/O that is also the C2 debug data line (C2D); the table lists no crossbar capability for this pin."
      },
      {
        "number": "8",
        "name": "P2.6",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as EMIF_WRb, ADC0.22, CMP0P.11 and CMP1P.11."
      },
      {
        "number": "9",
        "name": "XTAL4",
        "type": "passive",
        "description": "RTC crystal connection XTAL4 for the external 32 kHz RTC crystal."
      },
      {
        "number": "10",
        "name": "XTAL3",
        "type": "passive",
        "description": "RTC crystal connection XTAL3 for the external 32 kHz RTC crystal."
      },
      {
        "number": "11",
        "name": "P2.5",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as EMIF_RDb, ADC0.21, CMP0N.10 and CMP1N.10."
      },
      {
        "number": "12",
        "name": "P2.4",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as EMIF_ALE, ADC0.20, CMP0P.10 and CMP1P.10."
      },
      {
        "number": "13",
        "name": "P2.3",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as EMIF_A11, ADC0.19, CMP0N.9 and CMP1N.9."
      },
      {
        "number": "14",
        "name": "P2.2",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as EMIF_A10, ADC0.18, CMP0P.9 and CMP1P.9."
      },
      {
        "number": "15",
        "name": "P2.1",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as EMIF_A9, ADC0.17, CMP0N.8 and CMP1N.8."
      },
      {
        "number": "16",
        "name": "P2.0",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as EMIF_A8, ADC0.16, CMP0P.8 and CMP1P.8."
      },
      {
        "number": "17",
        "name": "P1.7",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P1MAT.7, EMIF_AD7, ADC0.15, CMP0N.7 and CMP1N.7."
      },
      {
        "number": "18",
        "name": "P1.6",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P1MAT.6, EMIF_AD6, ADC0.14, CMP0P.7 and CMP1P.7."
      },
      {
        "number": "19",
        "name": "P1.5",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P1MAT.5, EMIF_AD5, ADC0.13, CMP0N.6 and CMP1N.6."
      },
      {
        "number": "20",
        "name": "P1.4",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P1MAT.4, EMIF_AD4, ADC0.12, CMP0P.6 and CMP1P.6."
      },
      {
        "number": "21",
        "name": "P1.3",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P1MAT.3, SPI1_NSS, EMIF_AD3, ADC0.11, CMP0N.5 and CMP1N.5."
      },
      {
        "number": "22",
        "name": "P1.2",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P1MAT.2, SPI1_MOSI, EMIF_AD2, ADC0.10, CMP0P.5 and CMP1P.5."
      },
      {
        "number": "23",
        "name": "P1.1",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P1MAT.1, SPI1_MISO, EMIF_AD1, ADC0.9, CMP0N.4 and CMP1N.4."
      },
      {
        "number": "24",
        "name": "P1.0",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P1MAT.0, SPI1_SCK, EMIF_AD0, ADC0.8, CMP0P.4 and CMP1P.4."
      },
      {
        "number": "25",
        "name": "P0.7",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P0MAT.7, INT0.7, INT1.7, ADC0.7, IREF0, CMP0N.3 and CMP1N.3."
      },
      {
        "number": "26",
        "name": "P0.6",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P0MAT.6, CNVSTR, INT0.6, INT1.6, ADC0.6, CMP0P.3 and CMP1P.3."
      },
      {
        "number": "27",
        "name": "P0.5",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P0MAT.5, INT0.5, INT1.5, ADC0.5, CMP0N.2 and CMP1N.2."
      },
      {
        "number": "28",
        "name": "P0.4",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P0MAT.4, INT0.4, INT1.4, ADC0.4, CMP0P.2 and CMP1P.2."
      },
      {
        "number": "29",
        "name": "P0.3",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P0MAT.3, EXTCLK, INT0.3, INT1.3, ADC0.3, XTAL2, CMP0N.1 and CMP1N.1."
      },
      {
        "number": "30",
        "name": "P0.2",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P0MAT.2, INT0.2, INT1.2, ADC0.2, XTAL1, CMP0P.1 and CMP1P.1."
      },
      {
        "number": "31",
        "name": "P0.1",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P0MAT.1, INT0.1, INT1.1, ADC0.1, AGND, CMP0N.0 and CMP1N.0."
      },
      {
        "number": "32",
        "name": "P0.0",
        "type": "bidirectional",
        "description": "Multifunction I/O with crossbar capability, also available as P0MAT.0, INT0.0, INT1.0, ADC0.0, VREF, CMP0P.0 and CMP1P.0."
      }
    ],
    "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: Pin 7 (P2.7 / C2D) has a blank Crossbar Capability entry in Table 6.3, while all other I/O pins are ; Table 6.3 for the QFP32 package lists no center ground pad, unlike the QFN32 and QFN24 tables. No ce; Pin types are KiCad-class inferences from the function names: multifunction I/O is recorded as bidir"
        ],
        "pages_sent": 29,
        "cost_usd": 0.1734,
        "at": "2026-11-13T20:36:39"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/c994f29e46cd6ed624d13285dc82f4b7.pdf",
        "pages": 55,
        "sha256": "bd12812dfeaa3893",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 32,
        "described": 32,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "efm8sb20f32g-b-qfp32.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "be0e412f1c66fee70039b0e109e0cc7c823161dda97593718afa97569bc61ce3",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "efm8sb20f32g-b-qfp32-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ec2ab977f4d3b0703d1944c3dcc850069cb5ad8afd7c0b3e69ec30a9f309dd1a",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "QFP32",
      "source_page": 47,
      "D": {
        "nom_mm": 7,
        "range_mm": [
          null,
          null
        ]
      },
      "E1": {
        "nom_mm": 7,
        "range_mm": [
          null,
          null
        ]
      },
      "E": {
        "nom_mm": 9,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 0.8,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.6,
        "range_mm": [
          null,
          1.6
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "efm8sb20f32g-b-qfp32.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "SILICON LABS",
      "Package": "QFP-32(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "32"
    },
    "appearance": {
      "housing": {
        "quote": "4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020C specification for Small Body Components.",
        "page": 41,
        "doc": "ds.pdf",
        "material": "PC"
      },
      "version": 1,
      "datasheet_sha256": "bd12812dfeaa3893aca27f35e66018a0fa860e6d6c667313a3313fa92ac11f22"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "bd12812dfeaa3893aca27f35e66018a0fa860e6d6c667313a3313fa92ac11f22",
      "rows": [
        {
          "name": "Operating Supply Voltage on VDD",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": 2.4,
          "max": 3.6,
          "conditions": "",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Minimum RAM Data Retention Voltage on VDD (Sleep Mode)",
          "symbol": "VRAM",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": 0.3,
          "max": 0.5,
          "conditions": "Sleep Mode",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "System Clock Frequency",
          "symbol": "fSYSCLK",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Operating Ambient Temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Normal Mode supply current (full speed, code executing from flash)",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4.1,
          "max": 5,
          "conditions": "VDD = 1.8–3.6 V, fSYSCLK = 24.5 MHz",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Idle Mode supply current (core halted, peripherals running)",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.5,
          "max": 3,
          "conditions": "VDD = 1.8–3.6 V, fSYSCLK = 24.5 MHz",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "External Input CMOS Clock Frequency (at EXTCLK pin)",
          "symbol": "fCMOS",
          "kind": "timing",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 18,
          "source": "datasheet"
        },
        {
          "name": "External Input CMOS Clock High Time",
          "symbol": "tCMOSH",
          "kind": "timing",
          "unit": "ns",
          "min": 18,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 18,
          "source": "datasheet"
        },
        {
          "name": "External Input CMOS Clock Low Time",
          "symbol": "tCMOSL",
          "kind": "timing",
          "unit": "ns",
          "min": 18,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 18,
          "source": "datasheet"
        },
        {
          "name": "ADC Throughput Rate",
          "symbol": "fS",
          "kind": "electrical",
          "unit": "ksps",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Tracking Time",
          "symbol": "tTRK",
          "kind": "timing",
          "unit": "µs",
          "min": 1.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Power-On Time",
          "symbol": "tPWR",
          "kind": "timing",
          "unit": "µs",
          "min": 1.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC SAR Clock Frequency",
          "symbol": "fSAR",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 8.33,
          "conditions": "High Speed Mode",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Conversion Time",
          "symbol": "TCNV",
          "kind": "timing",
          "unit": "Clocks",
          "min": 13,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Voltage Reference Range",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Input Voltage Range (Gain = 1)",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "Gain = 1",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Input Voltage Range (Gain = 0.5)",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "Gain = 0.5",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Integral Nonlinearity",
          "symbol": "INL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -1,
          "typ": 0.5,
          "max": 1,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Differential Nonlinearity (Guaranteed Monotonic)",
          "symbol": "DNL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -1,
          "typ": 0.5,
          "max": 1,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Offset Error",
          "symbol": "EOFF",
          "kind": "electrical",
          "unit": "LSB",
          "min": -2,
          "typ": 0,
          "max": 2,
          "conditions": "VREF = 1.65 V",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Slope Error",
          "symbol": "EM",
          "kind": "electrical",
          "unit": "%",
          "min": -0.24,
          "typ": 0.06,
          "max": 0.24,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Signal-to-Noise Ratio",
          "symbol": "SNR",
          "kind": "electrical",
          "unit": "dB",
          "min": 54,
          "typ": 58,
          "max": null,
          "conditions": "10 kHz sine wave input, 1 dB below full scale, max throughput",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "ADC Signal-to-Noise Plus Distortion",
          "symbol": "SNDR",
          "kind": "electrical",
          "unit": "dB",
          "min": 54,
          "typ": 58,
          "max": null,
          "conditions": "10 kHz sine wave input, 1 dB below full scale, max throughput",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Internal Fast Settling Reference Output Voltage",
          "symbol": "VREFFS",
          "kind": "electrical",
          "unit": "V",
          "min": 1.6,
          "typ": 1.65,
          "max": 1.7,
          "conditions": "",
          "source_page": 20,
          "source": "datasheet"
        },
        {
          "name": "Internal Fast Settling Reference Turn-on Time",
          "symbol": "tVREFFS",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "",
          "source_page": 20,
          "source": "datasheet"
        },
        {
          "name": "On-chip Precision Reference Output Voltage",
          "symbol": "VREFP",
          "kind": "electrical",
          "unit": "V",
          "min": 1.645,
          "typ": 1.68,
          "max": 1.715,
          "conditions": "",
          "source_page": 20,
          "source": "datasheet"
        },
        {
          "name": "External Reference Input Voltage",
          "symbol": "VEXTREF",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": null,
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