D1302F

{
  "slug": "d1302f",
  "version": "0.1.0",
  "type": "component",
  "description": "Silicore(芯谷) Real Time Clocks, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "clock-timing",
    "d1302f",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "d1302f.kicad_sym",
    "d1302f.kicad_mod",
    "d1302f.glb",
    "d1302f.step",
    "d1302f.lbr",
    "docs/hero.png",
    "docs/d1302f-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "d1302f-hero.glb",
    "d1302f-hero.overlay.json",
    "d1302f-etched.glb"
  ],
  "component": {
    "mpn": "D1302F",
    "manufacturer": "Silicore(芯谷)",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Clock/Timing",
    "subcategory": "Real Time Clocks",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590920739451457536",
    "parts": {
      "symbol": "d1302f.kicad_sym",
      "footprint": "d1302f.kicad_mod",
      "model_3d": "d1302f-hero.glb",
      "model_3d_plain": "d1302f-etched.glb",
      "model_3d_step": "d1302f-etched.step",
      "model_3d_step_plain": "d1302f.step",
      "lbr": "d1302f.lbr"
    },
    "distributor_links": {
      "lcsc": "C20883050"
    },
    "distributor_check": {
      "checked_at": "2026-11-07T03:49:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC2",
        "type": "power_in",
        "description": "Primary supply pin in the dual-supply configuration (recommended supply 2.0V to 5.5V); the D1302 runs from the larger of VCC1 or VCC2, and VCC2 powers the device when it is more than 0.2V above VCC1."
      },
      {
        "number": "2",
        "name": "X1",
        "type": "passive",
        "description": "Connection for a standard 32.768kHz quartz crystal with a specified load capacitance of 6pF; when the device is driven by an external 32.768kHz oscillator, this pin receives the oscillator signal."
      },
      {
        "number": "3",
        "name": "X2",
        "type": "passive",
        "description": "Second connection for the 32.768kHz quartz crystal; it is left floating when the device is driven by an external 32.768kHz oscillator."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "5",
        "name": "RST",
        "type": "input",
        "description": "Reset input that must be driven high during any read or write and is not to be driven high while SCLK is at logic 1; it has a 40kΩ internal pull-down and a low level terminates all transfers and tri-states I/O."
      },
      {
        "number": "6",
        "name": "I/O",
        "type": "bidirectional",
        "description": "Bidirectional data pin for the 3-wire serial interface, with a 40kΩ internal pull-down resistor."
      },
      {
        "number": "7",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input that synchronizes data movement on the serial interface, with a 40kΩ internal pull-down resistor; it must be at logic 0 when RST is driven high."
      },
      {
        "number": "8",
        "name": "VCC1",
        "type": "power_in",
        "description": "Backup supply for low-power operation and battery backup that maintains time and date when VCC2 is absent; a trickle-charge source connects here, and UL recognition covers protection against reverse charging current with a lithium battery."
      }
    ],
    "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 pin configuration figure (page 2) is not present in the extracted text. Pin numbers 2 and 3 for ; X1 and X2 were classed as passive because the datasheet describes them as crystal connections, and X"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0681,
        "at": "2026-11-07T03:49:05"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590920739451457536",
        "pages": 14,
        "sha256": "08e40c1575476bb7",
        "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": "d1302f.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": "2026-11-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "d1302f-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": "cc20f9d688a755848ea3d466f73e609ce7ff0bb87822d93c7536ddf26bc38e0a",
        "checked": "2026-11-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}