CAT24C04WI-GT3

{
  "schema_version": 1,
  "type": "component",
  "slug": "cat24c04wi-gt3",
  "title": "CAT24C04WI-GT3",
  "brief": "onsemi EEPROM, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "memory",
    "cat24c04wi-gt3"
  ],
  "component": {
    "mpn": "CAT24C04WI-GT3",
    "manufacturer": "onsemi",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/cat24c04wi-gt3-d.pdf",
    "parts": {
      "symbol": "cat24c04wi-gt3.kicad_sym",
      "footprint": "cat24c04wi-gt3.kicad_mod",
      "model_3d": "cat24c04wi-gt3-etched.glb",
      "model_3d_plain": "cat24c04wi-gt3.glb",
      "model_3d_step": "cat24c04wi-gt3-etched.step",
      "model_3d_step_plain": "cat24c04wi-gt3.step",
      "lbr": "cat24c04wi-gt3.lbr"
    },
    "distributor_links": {
      "lcsc": "C71194"
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No Connect. On the CAT24C04 the A0 address input is not used because internal address bit a8 is derived from the slave address."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Device Address Input bit 1. Sets one of the two external address bits used when cascading up to four CAT24C04 devices on the same I2C bus. Internal weak pull-down to VSS when undriven; typical input current up to 50 uA depending on VCC."
      },
      {
        "number": "3",
        "name": "A2",
        "type": "input",
        "description": "Device Address Input bit 2. Second external slave-address selection pin used when cascading up to four CAT24C04 devices. Internal weak pull-down to VSS when undriven."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for the device (0 V)."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Serial Data I/O for the I2C bus. Open-drain output - requires an external pull-up resistor to VCC. Receives input data and transmits EEPROM read data; output is clocked on the negative edge of SCL."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "Serial Clock Input for the I2C bus. Accepts the clock generated by the master; supports Standard (100 kHz) and Fast (400 kHz) modes. Schmitt-trigger input with noise suppression filter."
      },
      {
        "number": "7",
        "name": "WP",
        "type": "input",
        "description": "Write Protect input. When held HIGH, all write operations to the entire memory array are inhibited. Internal weak pull-down to VSS when undriven; leave HIGH to enable full write protection."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage, 1.7 V to 5.5 V. Absolute maximum 6.5 V referenced to VSS."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/cat24c04wi-gt3-d.pdf",
        "pages": 23,
        "sha256": "1068a4f09584c5b3",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "cat24c04wi-gt3.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cat24c04wi-gt3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a21c72fb246aaa06514c79f873270b0870f47ab2894cb1c75ee6d00ebf54f02a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "SOIC-8",
      "Category": "Memory",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cat24c04wi-gt3"
  ],
  "discovery_pitch": "CAT24C04WI-GT3 (onsemi) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cat24c04wi-gt3.kicad_sym",
    "cat24c04wi-gt3.kicad_mod",
    "cat24c04wi-gt3.glb",
    "cat24c04wi-gt3.step",
    "cat24c04wi-gt3-etched.step",
    "cat24c04wi-gt3.lbr",
    "docs/hero.png",
    "docs/cat24c04wi-gt3-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T18:26:37.364Z"
}