AT24C02CN

{
  "schema_version": 1,
  "type": "component",
  "slug": "at24c02cn",
  "title": "AT24C02CN",
  "brief": "HGSEMI EEPROM, DIP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "memory",
    "at24c02cn"
  ],
  "component": {
    "mpn": "AT24C02CN",
    "manufacturer": "HGSEMI",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2308070959_HGSEMI-AT24C02CN_C7432366.pdf",
    "parts": {
      "symbol": "at24c02cn.kicad_sym",
      "footprint": "at24c02cn.kicad_mod",
      "model_3d": "at24c02cn-etched.glb",
      "model_3d_plain": "at24c02cn.glb",
      "model_3d_step": "at24c02cn-etched.step",
      "model_3d_step_plain": "at24c02cn.step",
      "lbr": "at24c02cn.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "E0",
        "type": "input",
        "description": "Device address input bit 0. Hard-wire to VCC or GND to set one of the three lower address bits, allowing up to eight AT24C02C devices on a single I2C bus. Internally pulled down to GND if left floating. Schmitt-trigger, filtered input."
      },
      {
        "number": "2",
        "name": "E1",
        "type": "input",
        "description": "Device address input bit 1. Hard-wire to VCC or GND to set the device address; internally pulled down to GND if left floating."
      },
      {
        "number": "3",
        "name": "E2",
        "type": "input",
        "description": "Device address input bit 2. Hard-wire to VCC or GND to set the device address; internally pulled down to GND if left floating."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the power supply. Connect to system ground."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Serial Data. Open-drain bidirectional I2C data line; requires an external pull-up resistor to VCC. Data is latched on the rising edge of SCL and output on the falling edge of SCL."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "Serial Clock input. Clocks data into and out of the device on the SDA line. Command/input data on SDA is latched on the rising edge of SCL; output data is clocked out on the falling edge of SCL."
      },
      {
        "number": "7",
        "name": "WP",
        "type": "input",
        "description": "Write Protect. Tie to VCC to hardware write-protect the entire memory array and Identification Page (device becomes read-only). Tie to GND (or leave floating; internal pull-down to GND) to enable write operations. When WP is high, device address and word address bytes are ACK'd but data bytes are not."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Device power supply, 1.7 V to 5.5 V. Standby current 1 uA max; read/write current 0.5 mA max. Bypass with a local decoupling capacitor to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2308070959_HGSEMI-AT24C02CN_C7432366.pdf",
        "pages": 27,
        "sha256": "02466a83d5aae04e",
        "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": "at24c02cn.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at24c02cn-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ec4ae674a601e4bf796ef169be17b77c71b99f18dabeb49b400ba360c3bfb439",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "DIP-8",
      "Category": "Memory",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "at24c02cn"
  ],
  "discovery_pitch": "AT24C02CN (HGSEMI) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at24c02cn.kicad_sym",
    "at24c02cn.kicad_mod",
    "at24c02cn.glb",
    "at24c02cn.step",
    "at24c02cn-etched.step",
    "at24c02cn.lbr",
    "docs/hero.png",
    "docs/at24c02cn-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:03:06.088Z"
}