BL24CM2A-PARC

{
  "schema_version": 1,
  "type": "component",
  "slug": "bl24cm2a-parc",
  "title": "BL24CM2A-PARC",
  "brief": "BL Shanghai Belling EEPROM, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "memory",
    "bl24cm2a-parc"
  ],
  "component": {
    "mpn": "BL24CM2A-PARC",
    "manufacturer": "BL Shanghai Belling",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2205171716_BL-Shanghai-Belling-BL24CM2A-PARC_C2932512.pdf",
    "parts": {
      "symbol": "bl24cm2a-parc.kicad_sym",
      "footprint": "bl24cm2a-parc.kicad_mod",
      "model_3d": "bl24cm2a-parc-etched.glb",
      "model_3d_plain": "bl24cm2a-parc.glb",
      "model_3d_step": "bl24cm2a-parc-etched.step",
      "model_3d_step_plain": "bl24cm2a-parc.step",
      "lbr": "bl24cm2a-parc.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. May be left floating or tied to GND."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. May be left floating or tied to GND."
      },
      {
        "number": "3",
        "name": "A2",
        "type": "input",
        "description": "Device address input (hard-wired). Selects between up to two BL24CM2A devices on the same I2C bus (combined with an internal word-address bit). Internally biased to logic low if left floating; VIL <= VCC*0.3, VIH >= VCC*0.7."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / VSS reference (0 V)."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data. Open-drain, bidirectional; requires an external pull-up resistor to VCC and may be wire-ORed with other open-drain/open-collector devices. Schmitt-trigger filtered input; C_IO ~= 8 pF."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input. Positive edge clocks data into the EEPROM; negative edge clocks data out. Schmitt-trigger input, up to 1 MHz; C_IN ~= 6 pF."
      },
      {
        "number": "7",
        "name": "WP",
        "type": "input",
        "description": "Write Protect. When tied to GND, normal read/write to the full 2 Mbit array is enabled. When tied to VCC, the entire memory array is write-protected (read-only). Schmitt-trigger input."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, +2.8 V to +5.5 V (absolute max +6.5 V). Typical read current 0.26 mA @ 400 kHz, write current 0.56 mA, standby 0.03 uA."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2205171716_BL-Shanghai-Belling-BL24CM2A-PARC_C2932512.pdf",
        "pages": 18,
        "sha256": "10e7c02a073a7e76",
        "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": "bl24cm2a-parc.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bl24cm2a-parc-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4138c29425dc8122002e305c7bb8fc496de5c87804f2a81e9177a8af12975489",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BL Shanghai Belling",
      "Package": "SOP-8",
      "Category": "Memory",
      "Pins": "8"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bl24cm2a-parc"
  ],
  "discovery_pitch": "BL24CM2A-PARC (BL Shanghai Belling) 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",
    "bl24cm2a-parc.kicad_sym",
    "bl24cm2a-parc.kicad_mod",
    "bl24cm2a-parc.glb",
    "bl24cm2a-parc.step",
    "bl24cm2a-parc.lbr",
    "docs/hero.png",
    "docs/bl24cm2a-parc-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:49:33.915Z"
}