PCF8563

{
  "schema_version": 1,
  "type": "component",
  "slug": "pcf8563",
  "title": "PCF8563",
  "brief": "NXP low-power I2C real-time clock/calendar, SO-8. Alarm, timer, clock output, low-voltage detect. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "clock",
    "rtc",
    "real-time-clock",
    "i2c",
    "so-8",
    "nxp"
  ],
  "component": {
    "mpn": "PCF8563",
    "manufacturer": "NXP Semiconductors",
    "package": "SO-8",
    "pin_count": 8,
    "category": "Clock IC",
    "subcategory": "I2C real-time clock (alarm + timer)",
    "datasheet": "https://www.nxp.com/docs/en/data-sheet/PCF8563.pdf",
    "parts": {
      "symbol": "pcf8563.kicad_sym",
      "footprint": "pcf8563.kicad_mod",
      "model_3d": "pcf8563-etched.glb",
      "model_3d_plain": "pcf8563.glb",
      "lbr": "pcf8563.lbr",
      "model_3d_step": "pcf8563-etched.step",
      "model_3d_step_plain": "pcf8563.step"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OSCI",
        "type": "input",
        "description": "Oscillator input. Connect one terminal of the 32.768 kHz quartz crystal here. The device has an integrated oscillator capacitor (C_OSCO) so typically only the crystal is required between OSCI and OSCO."
      },
      {
        "number": "2",
        "name": "OSCO",
        "type": "output",
        "description": "Oscillator output. Connect the other terminal of the 32.768 kHz quartz crystal here. Together with OSCI drives the on-chip oscillator that clocks the RTC."
      },
      {
        "number": "3",
        "name": "INT",
        "type": "output",
        "description": "Interrupt output, open-drain, active LOW. Signals alarm and timer events; requires an external pull-up resistor to VDD."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground (0 V) reference for the device."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C-bus serial data input/output (open-drain). Requires external pull-up. Bus operates up to 400 kbit/s at VDD = 1.8 V to 5.5 V. Target address: A2h (write) / A3h (read)."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "I2C-bus serial clock input. Requires external pull-up. Maximum 400 kHz."
      },
      {
        "number": "7",
        "name": "CLKOUT",
        "type": "output",
        "description": "Programmable square-wave clock output (open-drain). Selectable 32.768 kHz (default), 1.024 kHz, 32 Hz, or 1 Hz via CLKOUT_control register (0Dh). High-impedance when disabled; requires an external pull-up when used."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage. Clock operates 1.0 V to 5.5 V (at room temperature); I2C-bus operation requires 1.8 V to 5.5 V. Typical backup current 0.25 μA at 3.0 V, 25 °C."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.nxp.com/docs/en/data-sheet/PCF8563.pdf",
        "pages": 50,
        "sha256": "2ed5d1b0a1051d0e",
        "source_tier": "mfr"
      },
      "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"
    }
  },
  "metadata": {
    "specs": {
      "Type": "I2C real-time clock/calendar",
      "Timekeeping": "seconds to year, BCD, leap-year",
      "Extras": "alarm + countdown timer + CLKOUT",
      "Interrupt": "open-drain INT (alarm/timer/LVD)",
      "Bus": "I2C up to 400 kbit/s",
      "Timebase": "32.768 kHz crystal (OSCI/OSCO)",
      "Supply voltage": "1.0-5.5 V",
      "Package": "SO-8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "pcf8563",
    "i2c rtc",
    "real time clock nxp",
    "low power rtc",
    "rtc alarm timer"
  ],
  "discovery_pitch": "PCF8563 low-power I2C real-time clock/calendar (SO-8) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "pcf8563.kicad_sym",
    "pcf8563.kicad_mod",
    "pcf8563.glb",
    "pcf8563.lbr",
    "docs/hero.png",
    "docs/pcf8563-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pcf8563-etched.step"
  ],
  "variants": [
    {
      "mpn": "PCF8563T/5,518 (SO-8)",
      "kind": "packaging"
    },
    {
      "mpn": "PCF8563TS (TSSOP-8)",
      "kind": "packaging"
    }
  ]
}