FRTC8900S

{
  "slug": "frtc8900s",
  "version": "0.1.0",
  "type": "component",
  "description": "Nyfea Real Time Clocks, SOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "clock-timing",
    "frtc8900s",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "frtc8900s.kicad_sym",
    "frtc8900s.kicad_mod",
    "frtc8900s.glb",
    "frtc8900s.step",
    "frtc8900s.lbr",
    "docs/hero.png",
    "docs/frtc8900s-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "frtc8900s-hero.glb",
    "frtc8900s-hero.overlay.json",
    "frtc8900s-etched.glb"
  ],
  "component": {
    "mpn": "FRTC8900S",
    "manufacturer": "Nyfea",
    "package": "SOP-14",
    "pin_count": 14,
    "category": "Clock/Timing",
    "subcategory": "Real Time Clocks",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/70964470e95086ac77a1c1fbd520e903.pdf",
    "parts": {
      "symbol": "frtc8900s.kicad_sym",
      "footprint": "frtc8900s.kicad_mod",
      "model_3d": "frtc8900s-hero.glb",
      "model_3d_plain": "frtc8900s-etched.glb",
      "model_3d_step": "frtc8900s-etched.step",
      "model_3d_step_plain": "frtc8900s.step",
      "lbr": "frtc8900s.lbr"
    },
    "distributor_links": {
      "lcsc": "C42413386"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T02:20:03Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "T1",
        "type": "input",
        "description": "Manufacturer test pin; the datasheet says not to connect it externally."
      },
      {
        "number": "2",
        "name": "SCL",
        "type": "input",
        "description": "Serial clock input for I2C bus communications."
      },
      {
        "number": "3",
        "name": "FOUT",
        "type": "output",
        "description": "C-MOS 32.768 kHz output controlled by FOE; it outputs 32.768 kHz when FOE is high (depending on the FSEL bit) and goes high-impedance (Hi-Z) when output is stopped."
      },
      {
        "number": "4",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected to the internal IC; leave open or connect to GND or VDD."
      },
      {
        "number": "5",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup battery supply, 1.6 V to 5.5 V (3.0 V typ.); connect to VDD if battery switchover is not needed, or to a large-capacity capacitor or secondary battery otherwise."
      },
      {
        "number": "6",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply for normal operation, 2.5 V to 5.5 V (3.0 V typ.)."
      },
      {
        "number": "7",
        "name": "FOE",
        "type": "input",
        "description": "Input that controls FOUT output mode: FOUT is enabled when FOE is high and output stops when FOE is low."
      },
      {
        "number": "8",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected to the internal IC; leave open or connect to GND or VDD."
      },
      {
        "number": "9",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected to the internal IC; leave open or connect to GND or VDD."
      },
      {
        "number": "10",
        "name": "/INT",
        "type": "output",
        "description": "Open-drain output that goes low to signal alarm, fixed-cycle timer, or time update interrupts; it is active only when the matching interrupt enable bit is set."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection."
      },
      {
        "number": "12",
        "name": "T2",
        "type": "input",
        "description": "Manufacturer test pin; the datasheet says not to connect it externally."
      },
      {
        "number": "13",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data line (N-channel open drain during output) that needs a pull-up resistor suited to the signal-line capacitance."
      },
      {
        "number": "14",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected to the internal IC; leave open or connect to GND or VDD."
      }
    ],
    "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 SOP-14 column was read from garbled text extraction on page 3; the mapping of pin numbers to nam; The /INT pin's I/O type is printed as 'Input' in the pin table, but its description and the absolute; T1 and T2 are typed 'Input' in the datasheet table but are manufacturer test pins that must not be c"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0417,
        "at": "2026-10-19T02:19:48"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/70964470e95086ac77a1c1fbd520e903.pdf",
        "pages": 31,
        "sha256": "2a7da5dcf5cd5be1",
        "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"
    },
    "models_3d": [
      {
        "file": "frtc8900s.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "frtc8900s-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e9754bf8ca270a01cb903dc20ca86926c7afd3855ced00ca29d49b76c4f12d14",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}