RX8025T-UC

{
  "schema_version": 1,
  "type": "component",
  "slug": "rx8025t-uc",
  "title": "RX8025T-UC",
  "brief": "Seiko Epson Real-time Clocks (RTC), SOP-14-208mil. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "rtc",
    "rx8025t-uc"
  ],
  "component": {
    "mpn": "RX8025T-UC",
    "manufacturer": "Seiko Epson",
    "package": "SOP-14-208mil",
    "pin_count": 14,
    "category": "RTC",
    "subcategory": "Real-time Clocks (RTC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a063c3141e46403d80ca1b2dc253f03c.pdf",
    "parts": {
      "symbol": "rx8025t-uc.kicad_sym",
      "footprint": "rx8025t-uc.kicad_mod",
      "model_3d": "rx8025t-uc-etched.glb",
      "model_3d_plain": "rx8025t-uc.glb",
      "model_3d_step": "rx8025t-uc-etched.step",
      "model_3d_step_plain": "rx8025t-uc.step",
      "lbr": "rx8025t-uc.lbr"
    },
    "distributor_links": {
      "lcsc": "C53691"
    },
    "pins": [
      {
        "number": "1",
        "name": "T1(CE)",
        "type": "input",
        "description": "Manufacturer test pin. Do not connect externally."
      },
      {
        "number": "2",
        "name": "SCL",
        "type": "input",
        "description": "I2C-Bus serial clock input. Interface speed up to 400 kHz. Requires external pull-up to VDD (1.8-5.5 V)."
      },
      {
        "number": "3",
        "name": "FOUT",
        "type": "output",
        "description": "Reference clock output (CMOS output, CL = 30 pF). Selectable 32.768 kHz, 1024 Hz, or 1 Hz. Enabled via the FOE pin."
      },
      {
        "number": "4",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No internal connection. Leave open or tie to GND per board practice."
      },
      {
        "number": "5",
        "name": "TEST",
        "type": "input",
        "description": "Manufacturer test pin. Do not connect externally."
      },
      {
        "number": "6",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply input. Wide timekeeper range 1.6-5.5 V; interface 1.8-5.5 V; temperature-compensated range 2.2-5.5 V. Decouple locally."
      },
      {
        "number": "7",
        "name": "FOE",
        "type": "input",
        "description": "FOUT output enable control input. Drive high to enable FOUT, low to disable."
      },
      {
        "number": "8",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "9",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "10",
        "name": "/INT",
        "type": "output",
        "description": "Interrupt output, N-channel open drain. Asserted low by alarm or timer events. Requires external pull-up resistor to VDD."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V)."
      },
      {
        "number": "12",
        "name": "T2(VPP)",
        "type": "input",
        "description": "Manufacturer test pin (VPP). Do not connect externally."
      },
      {
        "number": "13",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C-Bus serial data input/output (open-drain). Requires external pull-up to VDD."
      },
      {
        "number": "14",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No internal connection."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/a063c3141e46403d80ca1b2dc253f03c.pdf",
        "pages": 1,
        "sha256": "4549e3348da5559a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -3.81
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-14_3.9x8.7mm_P1.27mm@sha256:a885b619b22880c9",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "rx8025t-uc.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          8.7,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rx8025t-uc-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          8.7,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1ba31733218ec7403eb4bfd15f02d1d3617dbd1e744312515c7cdb2ade2f0e27",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Seiko Epson",
      "Package": "SOP-14-208mil",
      "Category": "RTC",
      "Pins": "14"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "rx8025t-uc"
  ],
  "discovery_pitch": "RX8025T-UC (Seiko Epson) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "rx8025t-uc.kicad_sym",
    "rx8025t-uc.kicad_mod",
    "rx8025t-uc.glb",
    "rx8025t-uc.step",
    "rx8025t-uc-etched.step",
    "rx8025t-uc.lbr",
    "docs/hero.png",
    "docs/rx8025t-uc-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "RX8025T-UC",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T05:23:07.163Z"
}