CAT24C32WI-GT3

{
  "schema_version": 1,
  "type": "component",
  "slug": "cat24c32wi-gt3",
  "title": "CAT24C32WI-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",
    "cat24c32wi-gt3"
  ],
  "component": {
    "mpn": "CAT24C32WI-GT3",
    "manufacturer": "onsemi",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/cat24c32wi-gt3-d.pdf",
    "parts": {
      "symbol": "cat24c32wi-gt3.kicad_sym",
      "footprint": "cat24c32wi-gt3.kicad_mod",
      "model_3d": "cat24c32wi-gt3-etched.glb",
      "model_3d_plain": "cat24c32wi-gt3.glb",
      "model_3d_step": "cat24c32wi-gt3-etched.step",
      "model_3d_step_plain": "cat24c32wi-gt3.step",
      "lbr": "cat24c32wi-gt3.lbr"
    },
    "distributor_links": {
      "lcsc": "C81193"
    },
    "pins": [
      {
        "number": "1",
        "name": "A0",
        "type": "input",
        "description": "Device address input bit 0. Hard-wired HIGH or LOW to set the I2C slave address, allowing up to eight CAT24C32 devices on a single bus. Internally pulled LOW (weak pull-down, ~50 uA max input current) when left floating."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Device address input bit 1. Hard-wired HIGH or LOW to set the I2C slave address. Internally pulled LOW (weak pull-down) when left floating."
      },
      {
        "number": "3",
        "name": "A2",
        "type": "input",
        "description": "Device address input bit 2. Hard-wired HIGH or LOW to set the I2C slave address. Internally pulled LOW (weak pull-down) when left floating."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C Serial Data I/O (open-drain). Data is acquired on the positive edge of SCL and delivered on the negative edge. Requires an external pull-up resistor to VCC. Input capacitance ~8 pF max."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "I2C Serial Clock input. Accepts the clock generated by the bus master at up to 100 kHz (Standard), 400 kHz (Fast), or 1 MHz (Fast-Plus). Requires an external pull-up resistor to VCC."
      },
      {
        "number": "7",
        "name": "WP",
        "type": "input",
        "description": "Write Protect input. When pulled HIGH, inhibits all write operations to the entire memory array. Internally pulled LOW (weak pull-down, ~130 uA max input current at VCC = 5.5 V) when left floating, so writes are allowed by default."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input, 1.7 V to 5.5 V. Powers the EEPROM core and I/O; Fast-Plus (1 MHz) operation requires VCC >= 2.5 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/cat24c32wi-gt3-d.pdf",
        "pages": 16,
        "sha256": "58aeb31e57e946d3",
        "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": "cat24c32wi-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": "cat24c32wi-gt3-etched.step",
        "role": "eda",
        "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": "1f4af67aee13f2a1261dd9a3f48a12784aa9548d70126e22a51e74e0576a8945",
        "checked": "2026-11-03",
        "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": [
    "cat24c32wi-gt3"
  ],
  "discovery_pitch": "CAT24C32WI-GT3 (onsemi) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cat24c32wi-gt3.kicad_sym",
    "cat24c32wi-gt3.kicad_mod",
    "cat24c32wi-gt3.glb",
    "cat24c32wi-gt3.step",
    "cat24c32wi-gt3-etched.step",
    "cat24c32wi-gt3.lbr",
    "docs/hero.png",
    "docs/cat24c32wi-gt3-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "CAT24C32WI-GT3W",
      "kind": "packaging"
    },
    {
      "mpn": "CAT24C32WI-GT3",
      "kind": "packaging"
    },
    {
      "mpn": "CAT24C32WI-GT3L",
      "kind": "packaging"
    },
    {
      "mpn": "CAT24C32WI-GT3Y",
      "kind": "packaging"
    },
    {
      "mpn": "CAT24C32WI-GT3HU4",
      "kind": "packaging"
    },
    {
      "mpn": "CAT24C32WI-GT3US",
      "kind": "packaging"
    },
    {
      "mpn": "CAT24C32WI-GT3C5A",
      "kind": "packaging"
    },
    {
      "mpn": "CAT24C32WI-GT3C4C",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T18:27:25.342Z"
}