DS1302IDRG

{
  "schema_version": 1,
  "type": "component",
  "slug": "ds1302idrg",
  "title": "DS1302IDRG",
  "brief": "HANSCHIP semiconductor Real-time Clocks (RTC), SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "rtc",
    "ds1302idrg"
  ],
  "component": {
    "mpn": "DS1302IDRG",
    "manufacturer": "HANSCHIP semiconductor",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "RTC",
    "subcategory": "Real-time Clocks (RTC)",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2204251600_HANSCHIP-semiconductor-DS1302IDRG_C2977121.pdf",
    "parts": {
      "symbol": "ds1302idrg.kicad_sym",
      "footprint": "ds1302idrg.kicad_mod",
      "model_3d": "ds1302idrg-etched.glb",
      "model_3d_plain": "ds1302idrg.glb",
      "model_3d_step": "ds1302idrg-etched.step",
      "model_3d_step_plain": "ds1302idrg.step",
      "lbr": "ds1302idrg.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VCC2",
        "type": "power_in",
        "description": "Primary power supply input (main supply). Operating range 2.0 V to 5.5 V. Feeds the trickle-charge circuit that can charge a backup cell/cap on VCC1."
      },
      {
        "number": "2",
        "name": "X1",
        "type": "passive",
        "description": "Connection for a 32.768 kHz crystal oscillator (one terminal). Recommended crystal load capacitance CX = 6 pF typical."
      },
      {
        "number": "3",
        "name": "X2",
        "type": "passive",
        "description": "Connection for a 32.768 kHz crystal oscillator (other terminal). Pair with X1 across the crystal; CX ≈ 6 pF."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference (0 V)."
      },
      {
        "number": "5",
        "name": "RST",
        "type": "input",
        "description": "Reset / chip enable input, active high. Drive high to initiate a data transfer; drive low to terminate a transfer and place I/O into a high-impedance state. Must be low at power-up until VCC ≥ 2.5 V; when driving RST high, SCLK must be at logic 0."
      },
      {
        "number": "6",
        "name": "I/O",
        "type": "bidirectional",
        "description": "Serial data input/output for the 3-wire interface. Command/data bits are clocked in on rising SCLK edges and read data is clocked out on falling SCLK edges. Goes high-impedance when RST is low. TTL-compatible at VCC = 5 V."
      },
      {
        "number": "7",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input for the 3-wire interface. Synchronizes shifting of command and data bytes on the I/O pin. Maximum clock rate 0.5 MHz at VCC = 2.5 V, 2.0 MHz at VCC = 5 V."
      },
      {
        "number": "8",
        "name": "VCC1",
        "type": "power_in",
        "description": "Backup power supply input (typically a Ni-Cd cell or supercap). Powers the RTC and RAM when VCC2 is absent; can be trickle-charged from VCC2 through selectable diode/resistor combinations (R1=2 kΩ, R2=4 kΩ, R3=8 kΩ; VTD ≈ 0.7 V)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2204251600_HANSCHIP-semiconductor-DS1302IDRG_C2977121.pdf",
        "pages": 15,
        "sha256": "6dfca75d1e1627dd",
        "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": "ds1302idrg.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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ds1302idrg-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7d5917c6c7181480b0b800266299edcbefe91c5fcb0ce75d1d78e521ab2babb8",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HANSCHIP semiconductor",
      "Package": "SOP-8",
      "Category": "RTC",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ds1302idrg"
  ],
  "discovery_pitch": "DS1302IDRG (HANSCHIP semiconductor) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ds1302idrg.kicad_sym",
    "ds1302idrg.kicad_mod",
    "ds1302idrg.glb",
    "ds1302idrg.step",
    "ds1302idrg-etched.step",
    "ds1302idrg.lbr",
    "docs/hero.png",
    "docs/ds1302idrg-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "DS1302CDRG",
      "kind": "unknown"
    },
    {
      "mpn": "DS1302IDRG",
      "kind": "packaging"
    },
    {
      "mpn": "DS1302CDRG4",
      "kind": "unknown"
    },
    {
      "mpn": "DS1302IDRG4",
      "kind": "packaging"
    },
    {
      "mpn": "DS1302CPG",
      "kind": "unknown"
    },
    {
      "mpn": "DS1302IPG",
      "kind": "unknown"
    },
    {
      "mpn": "DS1302CDGKRG",
      "kind": "unknown"
    },
    {
      "mpn": "DS1302IDGKRG",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-24T20:04:17.065Z"
}