AT24C16

{
  "schema_version": 1,
  "type": "component",
  "slug": "at24c16",
  "title": "AT24C16",
  "brief": "IDCHIP EEPROM, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "memory",
    "at24c16"
  ],
  "component": {
    "mpn": "AT24C16",
    "manufacturer": "IDCHIP",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/019b539e23e2de2fe8942e765d76161c.pdf",
    "parts": {
      "symbol": "at24c16.kicad_sym",
      "footprint": "at24c16.kicad_mod",
      "model_3d": "at24c16-etched.glb",
      "model_3d_plain": "at24c16.glb",
      "model_3d_step": "at24c16-etched.step",
      "model_3d_step_plain": "at24c16.step",
      "lbr": "at24c16.lbr"
    },
    "distributor_links": {
      "lcsc": "C561263"
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. The AT24C16 consumes all three device-address bits (A0/A1/A2) internally for page selection within the 2Kx8 array, so this pad is left floating on the SOP-8 package."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. See pin 1 note; the device-address input is not used on the 16Kbit density."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. See pin 1 note; the device-address input is not used on the 16Kbit density."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0V) for the device (电源负)."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data line (串行数据端). Open-drain bidirectional input/output for address, data, and acknowledge bits; requires an external pull-up resistor (typ. 10kΩ) to VCC."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input (串行时钟端). Clocks data into/out of the device on rising/falling edges; up to 1MHz at VCC=5V, 400kHz at 1.8V/2.5V/2.7V. Requires an external pull-up resistor (typ. 10kΩ) to VCC."
      },
      {
        "number": "7",
        "name": "WP",
        "type": "input",
        "description": "Write-protect input (写保护端). When tied high, hardware write protection blocks write operations to the array; when tied low (or left low via pull-down), normal read/write operation is permitted."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply (电源正). Operating range 1.8V to 5.5V (absolute max 5.5V). Recommend a 1μF decoupling capacitor to GND as shown in the typical application circuit."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/019b539e23e2de2fe8942e765d76161c.pdf",
        "pages": 12,
        "sha256": "74187a0319348f68",
        "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": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "at24c16.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": "at24c16-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": "dafae7ba5b07df57e7cbe77740959dfcea05654fb9d208f3b2d4f30a2d8079ce",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "IDCHIP",
      "Package": "SOP-8",
      "Category": "Memory",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "at24c16"
  ],
  "discovery_pitch": "AT24C16 (IDCHIP) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at24c16.kicad_sym",
    "at24c16.kicad_mod",
    "at24c16.glb",
    "at24c16.step",
    "at24c16-etched.step",
    "at24c16.lbr",
    "docs/hero.png",
    "docs/at24c16-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:06:24.297Z"
}