XC7477

{
  "schema_version": 1,
  "type": "component",
  "slug": "xc7477",
  "title": "XC7477",
  "brief": "Si Change Analog To Digital Converters (ADC), SOT-23-6. 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",
    "xc7477",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "XC7477",
    "manufacturer": "Si Change",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603387342707175424",
    "parts": {
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      "footprint": "xc7477.kicad_mod",
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      "lbr": "xc7477.lbr"
    },
    "distributor_links": {
      "lcsc": "C23377946"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T18:11:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input, range 4 V to 5.25 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Analog input signal ground and the common ground reference for all circuits; all analog and digital signals are referenced to this pin."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Single-ended analog signal input channel, input range 0 V to VDD."
      },
      {
        "number": "4",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input that provides the serial clock and serves as the clock source for the conversion process."
      },
      {
        "number": "5",
        "name": "SDATA",
        "type": "output",
        "description": "Serial data output that delivers the conversion result as a serial stream, preceded by four leading zeros and sent MSB first."
      },
      {
        "number": "6",
        "name": "CS",
        "type": "input",
        "description": "Active-low chip select that both starts a conversion and frames the serial data output."
      }
    ],
    "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 states that SDATA enters tri-state after the 14th falling SCLK edge (timing section, p; Source datasheet is in Chinese; pin descriptions were translated into English. The pin table (page 2"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0272,
        "at": "2026-10-17T18:09:00"
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        "pages": 4,
        "sha256": "3aeb5783e6b3ccf0",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Si Change",
      "Package": "SOT-23-6",
      "Category": "Data Acquisition",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "3aeb5783e6b3ccf07c4c7b667da73e505182532ed8790ebe8c85146e7eb2af43",
      "rows": [
        {
          "name": "Supply voltage (VDD)",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 5.25,
          "conditions": "single supply, 4 V to 5.25 V as printed",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum sampling rate",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "KSPS",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Analog input voltage range (VIN)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "single-ended input, range 0 V to VDD as printed",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Differential nonlinearity (DNL)",
          "symbol": "DNL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Integral nonlinearity (INL)",
          "symbol": "INL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Signal-to-noise and distortion (SNR)",
          "symbol": "SNR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 61.5,
          "max": null,
          "conditions": "@100 KHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Total harmonic distortion (THD)",
          "symbol": "THD",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": -73.5,
          "max": null,
          "conditions": "@100 KHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Typical power consumption at 5 V, 800 KSPS",
          "symbol": "",
          "kind": "electrical",
          "unit": "mW",
          "min": null,
          "typ": 5.25,
          "max": null,
          "conditions": "5 V, 800 KSPS",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Typical power consumption at 4 V, 800 KSPS",
          "symbol": "",
          "kind": "electrical",
          "unit": "mW",
          "min": null,
          "typ": 3.45,
          "max": null,
          "conditions": "4 V, 800 KSPS",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Time after SDATA tri-state before next CS falling edge",
          "symbol": "",
          "kind": "timing",
          "unit": "μS",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "CS must stay high until 1 μS after SDATA enters tri-state before the next conversion starts",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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  "discovery_triggers": [
    "xc7477"
  ],
  "discovery_pitch": "XC7477 (Si Change) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}