XL1307

{
  "schema_version": 1,
  "type": "component",
  "slug": "xl1307",
  "title": "XL1307",
  "brief": "XINLUDA Real-time Clocks (RTC), SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "rtc",
    "xl1307"
  ],
  "component": {
    "mpn": "XL1307",
    "manufacturer": "XINLUDA",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "RTC",
    "subcategory": "Real-time Clocks (RTC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/19889d91d070b0ea568b51be1c494501.pdf",
    "parts": {
      "symbol": "xl1307.kicad_sym",
      "footprint": "xl1307.kicad_mod",
      "model_3d": "xl1307-etched.glb",
      "model_3d_plain": "xl1307.glb",
      "model_3d_step": "xl1307-etched.step",
      "model_3d_step_plain": "xl1307.step",
      "lbr": "xl1307.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "X1",
        "type": "input",
        "description": "Connection to a standard 32.768 kHz quartz crystal (CL = 12.5 pF). X1 is the input to the internal oscillator and can alternatively be driven by an external 32.768 kHz oscillator; in that case X2 must be left floating."
      },
      {
        "number": "2",
        "name": "X2",
        "type": "output",
        "description": "Connection to the opposite terminal of the 32.768 kHz quartz crystal. X2 is the oscillator output; leave floating when an external oscillator drives X1."
      },
      {
        "number": "3",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup supply input for a standard 3 V lithium cell or other energy source (recommended 2.0 V to 3.5 V). Battery must be tied directly (no series diodes). If no backup is used, VBAT must be grounded. Power-fail trip point VPF = 1.25 × VBAT nominal."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data input/output. Open-drain output requiring an external pull-up resistor; pull-up voltage may be up to 5.5 V regardless of VCC."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input used to synchronize data movement on the serial interface. Requires an external pull-up; pull-up voltage may be up to 5.5 V regardless of VCC. fSCL up to 100 kHz."
      },
      {
        "number": "7",
        "name": "SQW/OUT",
        "type": "output",
        "description": "Square-wave/output driver. When SQWE = 1, outputs one of four selectable frequencies (1 Hz, 4 kHz, 8 kHz, 32 kHz). Open-drain; requires external pull-up (up to 5.5 V). Operates from either VCC or VBAT. May be left floating if unused."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Primary power supply, 4.5 V to 5.5 V (5.0 V nominal). When VCC > 1.25 × VBAT the device is fully accessible; below this threshold reads and writes are inhibited but timekeeping continues from VBAT."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/19889d91d070b0ea568b51be1c494501.pdf",
        "pages": 15,
        "sha256": "3c124bb9d9354515",
        "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": "xl1307.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "xl1307-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f7ee51f17a2494993a58424995152250784e272a12c72a5cecfe8ccef5c8b71c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "XINLUDA",
      "Package": "SOP-8",
      "Category": "RTC",
      "Pins": "8"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "xl1307"
  ],
  "discovery_pitch": "XL1307 (XINLUDA) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "xl1307.kicad_sym",
    "xl1307.kicad_mod",
    "xl1307.glb",
    "xl1307.step",
    "xl1307.lbr",
    "docs/hero.png",
    "docs/xl1307-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T14:27:02.703Z"
}