XL549

{
  "schema_version": 1,
  "type": "component",
  "slug": "xl549",
  "title": "XL549",
  "brief": "XINLUDA Analog To Digital Converters (ADC), SOP-8. 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",
    "data acquisition",
    "xl549",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "XL549",
    "manufacturer": "XINLUDA",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886318533791744",
    "parts": {
      "symbol": "xl549.kicad_sym",
      "footprint": "xl549.kicad_mod",
      "model_3d": "xl549-hero.glb",
      "model_3d_plain": "xl549-etched.glb",
      "model_3d_step": "xl549-etched.step",
      "model_3d_step_plain": "xl549.step",
      "lbr": "xl549.lbr"
    },
    "distributor_links": {
      "lcsc": "C707062"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T23:37:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "REF+",
        "type": "input",
        "description": "Positive reference voltage input, which must be kept within 2.5 V ≤ REF+ ≤ Vcc + 0.1 as printed."
      },
      {
        "number": "2",
        "name": "ANALOG IN",
        "type": "input",
        "description": "Analog signal input sampled by the on-chip sample-and-hold, which starts sampling at the falling edge of the 4th I/O CLOCK and takes 4 I/O clock cycles for channel acquisition."
      },
      {
        "number": "3",
        "name": "REF-",
        "type": "input",
        "description": "Negative reference voltage input, which must be kept within -0.1 V ≤ REF- ≤ 2.5 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device; the datasheet gives no further limits for this pin."
      },
      {
        "number": "5",
        "name": "CS",
        "type": "input",
        "description": "Chip select input, which must be taken low to start a conversion sequence and must be high (or I/O CLOCK held low for 36 internal clock cycles) to complete the conversion."
      },
      {
        "number": "6",
        "name": "DATA OUT",
        "type": "output",
        "description": "Serial conversion result output, which first presents the MSB (D7) on CS falling edge and then updates on I/O CLOCK falling edges, with output data remaining valid for at least 10 ns after I/O CLOCK falls."
      },
      {
        "number": "7",
        "name": "I/O CLOCK",
        "type": "input",
        "description": "External clock input that drives the serial conversion timing; the on-chip 4 MHz system clock runs independently of it."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input with an operating range of 3 V to 6.5 V per the features list and a 6.5 V absolute maximum."
      }
    ],
    "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: CS, DATA OUT and I/O CLOCK types (input/output) are inferred from the pin function table and timing ; The datasheet's electrical table lists VCC as 3 V min, 5 V typ, 6 V max, while the features list and; The pin table is a single table shared by XL549 (SOP8) and XD549 (DIP8) with no per-package pin draw"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0325,
        "at": "2026-10-18T23:35:02"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886318533791744",
        "pages": 6,
        "sha256": "d69dd73a48dd13c1",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "xl549.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "xl549-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b4452e5455737b4197ccdf4e017be17b6dee618ab689db98487f2025d3430589",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "XINLUDA",
      "Package": "SOP-8",
      "Category": "Data Acquisition",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "d69dd73a48dd13c19a9ea2a81bfee135fd48c25d5a6b25849676067b25fefad3",
      "rows": [
        {
          "name": "Supply voltage, VCC",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 3,
          "typ": 5,
          "max": 6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "VCC=4.75V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "VCC=4.75V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High-impedance off-state output current",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VO=VCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High-impedance off-state output current",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "μA",
          "min": -10,
          "typ": null,
          "max": null,
          "conditions": "VO=0",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High-level input current, control inputs",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.005,
          "max": 2.5,
          "conditions": "VI=VCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Low-level input current, control inputs",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "μA",
          "min": -2.5,
          "typ": -0.005,
          "max": null,
          "conditions": "VI=0",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Analog channel on-state input current during sample cycle",
          "symbol": "II(on)",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "Analog input at VCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Analog channel on-state input current during sample cycle",
          "symbol": "II(on)",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1.8,
          "conditions": "Analog input at 0 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.9,
          "max": 3,
          "conditions": "CS at 0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Full-scale error (EL row)",
          "symbol": "EL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Zero-scale error (EZS row)",
          "symbol": "EZS",
          "kind": "electrical",
          "unit": "LSB",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Conversion time (label printed on EFS row)",
          "symbol": "EFS",
          "kind": "electrical",
          "unit": "LSB",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Conversion time",
          "symbol": "tconv",
          "kind": "timing",
          "unit": "μA",
          "min": null,
          "typ": 12,
          "max": 17,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Total access and conversion time",
          "symbol": "ta",
          "kind": "timing",
          "unit": "μA",
          "min": null,
          "typ": 19,
          "max": 25,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Channel acquisition time (sample cycle)",
          "symbol": "",
          "kind": "timing",
          "unit": "I/O clock cycles",
          "min": null,
          "typ": 4,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Time output data remains valid after I/O CLOCK falling edge",
          "symbol": "tv",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Time output data output valid",
          "symbol": "td",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 400,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output enable time",
          "symbol": "ten",
          "kind": "timing",
          "unit": "μA",
          "min": null,
          "typ": 1.4,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Data bus fall time",
          "symbol": "tdis",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Bus rise time (name not printed)",
          "symbol": "tr(bus)",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Bus fall time (name not printed)",
          "symbol": "Tf(bus)",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage, VCC",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range at any input",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit printed as VCC + 0.3 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit printed as VCC + 0.3 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Peak input current range (any input)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Peak total input current range (all inputs)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating free-air temperature range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -20,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "1.6 mm (1/16 inch) from case for 10 seconds",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Wide operating voltage (Features)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Positive reference voltage input",
          "symbol": "REF+",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": null,
          "conditions": "2.5V≤REF+≤Vcc+0.1 (upper bound printed as Vcc+0.1)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Negative reference voltage input",
          "symbol": "REF-",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 2.5,
          "conditions": "-0.1V≤REF-≤2.5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Differential reference voltage",
          "symbol": "VREF+-VREF-",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "xl549"
  ],
  "discovery_pitch": "XL549 (XINLUDA) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "xl549.kicad_sym",
    "xl549.kicad_mod",
    "xl549.glb",
    "xl549.step",
    "xl549.lbr",
    "docs/hero.png",
    "docs/xl549-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "xl549-hero.glb",
    "xl549-hero.overlay.json",
    "xl549-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}