BM8563EMA

{
  "schema_version": 1,
  "type": "component",
  "slug": "bm8563ema",
  "title": "BM8563EMA",
  "brief": "GATEMODE Real-time Clocks (RTC), MSOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "rtc",
    "bm8563ema"
  ],
  "component": {
    "mpn": "BM8563EMA",
    "manufacturer": "GATEMODE",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "RTC",
    "subcategory": "Real-time Clocks (RTC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/17751eb9d33a03cc13269b3bcdbd2a70.pdf",
    "parts": {
      "symbol": "bm8563ema.kicad_sym",
      "footprint": "bm8563ema.kicad_mod",
      "model_3d": "bm8563ema-etched.glb",
      "model_3d_plain": "bm8563ema.glb",
      "model_3d_step": "bm8563ema-etched.step",
      "model_3d_step_plain": "bm8563ema.step",
      "lbr": "bm8563ema.lbr"
    },
    "distributor_links": {
      "lcsc": "C269878"
    },
    "pins": [
      {
        "number": "1",
        "name": "OSCI",
        "type": "input",
        "description": "Oscillator input. Connect one terminal of the 32.768 kHz quartz crystal here; a series trimmer capacitance Ctrim (5-25 pF) is applied on this pin to tune the load capacitance (CL parallel = 7-12.5 pF target)."
      },
      {
        "number": "2",
        "name": "OSCO",
        "type": "output",
        "description": "Oscillator output. Connect the second terminal of the 32.768 kHz quartz crystal here. Internal capacitance on OSCO is 15-35 pF (typ 25 pF)."
      },
      {
        "number": "3",
        "name": "INT",
        "type": "output",
        "description": "Interrupt output, open-drain, active LOW. Asserted by the alarm and/or timer flags (AF/TF) subject to AIE/TIE enables. Requires an external pull-up to VDD; IOL >= 1 mA at VOL = 0.4 V."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference (0 V)."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C-bus serial data input/output. Open-drain; requires external pull-up. Slave address: read A3h / write A2h. Supports standard and fast modes up to 400 kHz (VDD >= 1.8 V). IOL(SDA) >= 3 mA at VOL = 0.4 V."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "I2C-bus serial clock input. Requires external pull-up. Supports up to 400 kHz. Input thresholds: VIL <= 0.3 VDD, VIH >= 0.7 VDD."
      },
      {
        "number": "7",
        "name": "CLKOUT",
        "type": "output",
        "description": "Programmable clock output, open-drain. Software-selectable frequencies of 32.768 kHz (default), 1.024 kHz, 32 Hz, and 1 Hz via CLKOUT_control (address 0Dh). Requires external pull-up; goes high-impedance when disabled. IOL >= 1 mA at VOL = 0.4 V."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage. 1.2-5.5 V with interface inactive; 1.8-5.5 V for full 400 kHz I2C operation. Absolute max +6.5 V. Typical IDD ~ 500 nA at VDD = 3.0 V (interface inactive, CLKOUT disabled)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/17751eb9d33a03cc13269b3bcdbd2a70.pdf",
        "pages": 29,
        "sha256": "636c5bb2af64a7e3",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.1125,
        -0.975
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "MSOP-8_3x3mm_P0.65mm@sha256:c85207be7edf4b5e",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "bm8563ema.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bm8563ema-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "90cef79935175e47858e1e25dcc29a2d27be3074f1112c25dd5d303161cbb35c",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "GATEMODE",
      "Package": "MSOP-8",
      "Category": "RTC",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bm8563ema"
  ],
  "discovery_pitch": "BM8563EMA (GATEMODE) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bm8563ema.kicad_sym",
    "bm8563ema.kicad_mod",
    "bm8563ema.glb",
    "bm8563ema.step",
    "bm8563ema-etched.step",
    "bm8563ema.lbr",
    "docs/hero.png",
    "docs/bm8563ema-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:59:10.875Z"
}