C8051F850-C-GMR

{
  "schema_version": 1,
  "type": "component",
  "slug": "c8051f850-c-gmr",
  "title": "C8051F850-C-GMR",
  "brief": "SKYWORKS SILICON LABS Microcontrollers (MCU/MPU/SOC), QFN-20-EP(3x3). 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",
    "c8051f850-c-gmr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "C8051F850-C-GMR",
    "manufacturer": "SKYWORKS SILICON LABS",
    "package": "QFN-20-EP(3x3)",
    "pin_count": 21,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901606976851968",
    "parts": {
      "symbol": "c8051f850-c-gmr.kicad_sym",
      "footprint": "c8051f850-c-gmr.kicad_mod",
      "model_3d": "c8051f850-c-gmr-hero.glb",
      "model_3d_plain": "c8051f850-c-gmr-etched.glb",
      "model_3d_step": "c8051f850-c-gmr-etched.step",
      "model_3d_step_plain": "c8051f850-c-gmr.step",
      "lbr": "c8051f850-c-gmr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2052910",
      "digikey": "336-4731-2-ND",
      "mouser": "634-C8051F850-C-GMR"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T05:58:43Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "336-4731-2-ND",
        "status": "found",
        "lifecycle": "Not For New Designs"
      },
      "mouser": {
        "pn": "634-C8051F850-C-GMR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P0.1/AGND",
        "type": "bidirectional",
        "description": "Port 0 bit 1 standard I/O, crossbar-capable, 5 V tolerant, with P0MAT.1, INT0.1/INT1.1, ADC0.1, CP0P.1/CP0N.1 functions, or optional AGND analog ground reference."
      },
      {
        "number": "2",
        "name": "P0.0/VREF",
        "type": "bidirectional",
        "description": "Port 0 bit 0 standard I/O, crossbar-capable, with P0MAT.0, INT0.0/INT1.0, ADC0.0, CP0P.0/CP0N.0 functions, or optional external VREF input."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin; device is specified for 2.2 to 3.6 V operation."
      },
      {
        "number": "5",
        "name": "RST/C2CK",
        "type": "bidirectional",
        "description": "Active-low reset input and C2 debug clock."
      },
      {
        "number": "6",
        "name": "P2.0/C2D",
        "type": "bidirectional",
        "description": "Standard I/O P2.0 shared with the bidirectional C2 debug data signal."
      },
      {
        "number": "7",
        "name": "P1.6",
        "type": "bidirectional",
        "description": "Port 1 bit 6 standard I/O, crossbar-capable, with P1MAT.6, ADC0.14, CP1P.6/CP1N.6 functions."
      },
      {
        "number": "8",
        "name": "P1.5",
        "type": "bidirectional",
        "description": "Port 1 bit 5 standard I/O, crossbar-capable, with P1MAT.5, ADC0.13, CP1P.5/CP1N.5 functions."
      },
      {
        "number": "9",
        "name": "P1.4",
        "type": "bidirectional",
        "description": "Port 1 bit 4 standard I/O, crossbar-capable, with P1MAT.4, ADC0.12, CP1P.4/CP1N.4 functions."
      },
      {
        "number": "10",
        "name": "P1.3",
        "type": "bidirectional",
        "description": "Port 1 bit 3 standard I/O, crossbar-capable, with P1MAT.3, ADC0.11, CP1P.3/CP1N.3 functions."
      },
      {
        "number": "11",
        "name": "P1.2",
        "type": "bidirectional",
        "description": "Port 1 bit 2 standard I/O, crossbar-capable, with P1MAT.2, ADC0.10, CP1P.2/CP1N.2 functions."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "13",
        "name": "P1.1",
        "type": "bidirectional",
        "description": "Port 1 bit 1 standard I/O, crossbar-capable, with P1MAT.1, ADC0.9, CP1P.1/CP1N.1 functions."
      },
      {
        "number": "14",
        "name": "P1.0",
        "type": "bidirectional",
        "description": "Port 1 bit 0 standard I/O, crossbar-capable, with P1MAT.0, ADC0.8, CP1P.0/CP1N.0 functions."
      },
      {
        "number": "15",
        "name": "P0.7",
        "type": "bidirectional",
        "description": "Port 0 bit 7 standard I/O, crossbar-capable, with P0MAT.7, INT0.7/INT1.7, ADC0.7, CP0P.7/CP0N.7 functions."
      },
      {
        "number": "16",
        "name": "P0.6",
        "type": "bidirectional",
        "description": "Port 0 bit 6 standard I/O, crossbar-capable, with P0MAT.6, CNVSTR, INT0.6/INT1.6, ADC0.6, CP0P.6/CP0N.6 functions."
      },
      {
        "number": "17",
        "name": "P0.5",
        "type": "bidirectional",
        "description": "Port 0 bit 5 standard I/O, crossbar-capable, with P0MAT.5, INT0.5/INT1.5, ADC0.5, CP0P.5/CP0N.5 functions; UART0 RX is always assigned here."
      },
      {
        "number": "18",
        "name": "P0.4",
        "type": "bidirectional",
        "description": "Port 0 bit 4 standard I/O, crossbar-capable, with P0MAT.4, INT0.4/INT1.4, ADC0.4, CP0P.4/CP0N.4 functions; UART0 TX is always assigned here."
      },
      {
        "number": "19",
        "name": "P0.3",
        "type": "bidirectional",
        "description": "Port 0 bit 3 standard I/O, crossbar-capable, with P0MAT.3, EXTCLK, INT0.3/INT1.3, ADC0.3, CP0P.3/CP0N.3 functions."
      },
      {
        "number": "20",
        "name": "P0.2",
        "type": "bidirectional",
        "description": "Port 0 bit 2 standard I/O, crossbar-capable, with P0MAT.2, INT0.2/INT1.2, ADC0.2, CP0P.2/CP0N.2 functions."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, exposed center pad of the QFN-20 package."
      }
    ],
    "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: Table 3.2 labels the exposed center pad as 'Center' rather than a numbered pin; it is reported here ; The datasheet names this pin 'Active-low Reset / C2 Debug Clock' without an explicit electrical type; Pins 5 and 6 are shared with C2 debug signals; their behavior during debug is not otherwise specifie",
          "exposed pad 21 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 51,
        "cost_usd": 0.1883,
        "at": "2026-10-19T05:56:26"
      },
      "datasheet": {
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        "pages": 313,
        "sha256": "f06cd3edf17e3279",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "checked": "2026-10-19",
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      },
      {
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      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "SKYWORKS SILICON LABS",
      "Package": "QFN-20-EP(3x3)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "21"
    },
    "appearance": {
      "housing": {
        "quote": "4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020 specification for Small Body",
        "page": 45,
        "doc": "ds.pdf",
        "material": "PC"
      },
      "version": 1,
      "datasheet_sha256": "f06cd3edf17e327959ae3347189fc765d386cb252ae462c6a70dea21c4e0416e"
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    "characteristics": {
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        },
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          "conditions": "Commercial Grade Devices (-GM, -GS, -GU)",
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        {
          "name": "Digital Core Supply Current, Normal Mode full speed",
          "symbol": "IDD",
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          "unit": "mA",
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          "max": 4.85,
          "conditions": "Normal mode, code executing from flash; FSYSCLK = 24.5 MHz; -Gx devices",
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          "max": 290,
          "conditions": "Normal mode, code executing from flash; FSYSCLK = 80 kHz, TA = 25 °C; -Gx devices",
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          "name": "Digital Core Supply Current, Normal Mode",
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          "name": "Digital Core Supply Current, Idle Mode",
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          "typ": 2.05,
          "max": 2.3,
          "conditions": "Idle mode, core halted with peripherals running; FSYSCLK = 24.5 MHz; -Gx devices",
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          "name": "Digital Core Supply Current, Idle Mode",
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          "min": null,
          "typ": 550,
          "max": 700,
          "conditions": "Idle mode, core halted with peripherals running; FSYSCLK = 1.53 MHz; -Gx devices",
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        {
          "name": "Digital Core Supply Current, Idle Mode",
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          "typ": 125,
          "max": 130,
          "conditions": "Idle mode, core halted with peripherals running; FSYSCLK = 80 kHz, TA = 25 °C; -Gx devices",
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        {
          "name": "Digital Core Supply Current, Idle Mode",
          "symbol": "IDD",
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          "typ": 125,
          "max": 200,
          "conditions": "Idle mode, core halted with peripherals running; FSYSCLK = 80 kHz; -Gx devices",
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          "name": "Digital Core Supply Current, Stop Mode",
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          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 105,
          "max": 120,
          "conditions": "Stop mode, internal LDO ON, TA = 25 °C; -Gx devices",
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        {
          "name": "ADC0 Always-on Supply Current",
          "symbol": "IADC",
          "kind": "electrical",
          "unit": "µA",
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          "conditions": "800 ksps 10-bit or 200 ksps 12-bit conversions; normal bias settings; VDD = 3.0 V",
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        {
          "name": "ADC0 Always-on Supply Current",
          "symbol": "IADC",
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          "conditions": "250 ksps 10-bit or 62.5 ksps 12-bit conversions; low power bias settings; VDD = 3.0 V",
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        {
          "name": "Offset Error",
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          "kind": "electrical",
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          "min": -3,
          "typ": 0,
          "max": 3,
          "conditions": "12 Bit Mode, VREF = 1.65 V",
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        {
          "name": "Offset Error",
          "symbol": "EOFF",
          "kind": "electrical",
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          "min": -2,
          "typ": 0,
          "max": 2,
          "conditions": "10 Bit Mode, VREF = 1.65 V",
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        {
          "name": "Slope Error",
          "symbol": "EM",
          "kind": "electrical",
          "unit": "%",
          "min": -0.1,
          "typ": 0.02,
          "max": 0.1,
          "conditions": "12 Bit Mode",
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        {
          "name": "Slope Error",
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          "kind": "electrical",
          "unit": "%",
          "min": -0.24,
          "typ": 0.06,
          "max": 0.24,
          "conditions": "10 Bit Mode",
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        {
          "name": "Signal-to-Noise",
          "symbol": "SNR",
          "kind": "electrical",
          "unit": "dB",
          "min": 61,
          "typ": 66,
          "max": null,
          "conditions": "12 Bit Mode; 10 kHz sine wave input 1 dB below full scale, max throughput, using AGND pin",
          "source_page": 14,
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        {
          "name": "Signal-to-Noise",
          "symbol": "SNR",
          "kind": "electrical",
          "unit": "dB",
          "min": 53,
          "typ": 60,
          "max": null,
          "conditions": "10 Bit Mode; 10 kHz sine wave input 1 dB below full scale, max throughput, using AGND pin",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Signal-to-Noise Plus Distortion",
          "symbol": "SNDR",
          "kind": "electrical",
          "unit": "dB",
          "min": 61,
          "typ": 66,
          "max": null,
          "conditions": "12 Bit Mode; 10 kHz sine wave input 1 dB below full scale, max throughput, using AGND pin",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Signal-to-Noise Plus Distortion",
          "symbol": "SNDR",
          "kind": "electrical",
          "unit": "dB",
          "min": 53,
          "typ": 60,
          "max": null,
          "conditions": "10 Bit Mode; 10 kHz sine wave input 1 dB below full scale, max throughput, using AGND pin",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Internal Fast Settling Reference Output Voltage",
          "symbol": "VREFFS",
          "kind": "electrical",
          "unit": "V",
          "min": 1.62,
          "typ": 1.65,
          "max": 1.68,
          "conditions": "Full temperature and supply range; 1.65 V setting",
          "source_page": 15,
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        },
        {
          "name": "Internal Fast Settling Reference Output Voltage",
          "symbol": "VREFFS",
          "kind": "electrical",
          "unit": "V",
          "min": 2.35,
          "typ": 2.4,
          "max": 2.45,
          "conditions": "Full temperature and supply range; 2.4 V setting, VDD > 2.6 V",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Turn-on Time",
          "symbol": "tREFFS",
          "kind": "electrical",
          "unit": "µs",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "",
          "source_page": 15,
          "source": "datasheet"
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        {
          "name": "Ambient Temperature Under Bias",
          "symbol": "TBIAS",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 22,
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        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 22,
          "source": "datasheet"
        },
        {
          "name": "Voltage on VDD",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 4.2,
          "conditions": "Referenced to GND (printed as GND–0.3)",
          "source_page": 22,
          "source": "datasheet"
        },
        {
          "name": "Voltage on I/O pins or RST",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.8,
          "conditions": "VDD > 3.3 V; referenced to GND (printed as GND–0.3)",
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        {
          "name": "Voltage on I/O pins or RST",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "VDD < 3.3 V; max printed as VDD+2.5 V; min referenced to GND (printed as GND–0.3)",
          "source_page": 22,
          "source": "datasheet"
        },
        {
          "name": "Total Current Sunk into Supply Pin",
          "symbol": "IVDD",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "",
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        {
          "name": "Total Current Sourced out of Ground Pin",
          "symbol": "IGND",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": 400,
          "typ": null,
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        {
          "name": "Current Sourced or Sunk by Any I/O Pin or RST",
          "symbol": "IPIO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 22,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "Commercial Grade Devices (-GM, -GS, -GU)",
          "source_page": 22,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, QFN-20 packages",
          "symbol": "JA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
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