AT24C128N

{
  "slug": "at24c128n",
  "version": "0.1.0",
  "type": "component",
  "description": "HGSEMI EEPROM, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "memory",
    "at24c128n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at24c128n.kicad_sym",
    "at24c128n.kicad_mod",
    "at24c128n.glb",
    "at24c128n.step",
    "at24c128n.lbr",
    "docs/hero.png",
    "docs/at24c128n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at24c128n-hero.glb",
    "at24c128n-hero.overlay.json",
    "at24c128n-etched.glb"
  ],
  "component": {
    "mpn": "AT24C128N",
    "manufacturer": "HGSEMI",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756372576287772672",
    "parts": {
      "symbol": "at24c128n.kicad_sym",
      "footprint": "at24c128n.kicad_mod",
      "model_3d": "at24c128n-hero.glb",
      "model_3d_plain": "at24c128n-etched.glb",
      "model_3d_step": "at24c128n-etched.step",
      "model_3d_step_plain": "at24c128n.step",
      "lbr": "at24c128n.lbr"
    },
    "distributor_links": {
      "lcsc": "C434603"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T02:59:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "E0",
        "type": "input",
        "description": "Device address input that must match the device address bit E0 on the bus; if left floating it is internally biased to logic low (Vss)."
      },
      {
        "number": "2",
        "name": "E1",
        "type": "input",
        "description": "Device address input that must match the device address bit E1 on the bus; if left floating it is internally pulled down to Vss."
      },
      {
        "number": "3",
        "name": "E2",
        "type": "input",
        "description": "Device address input that must match the device address bit E2 on the bus, allowing up to 8 devices on one bus; if left floating it is internally pulled down to Vss."
      },
      {
        "number": "4",
        "name": "Vss",
        "type": "power_in",
        "description": "Ground, the reference for the VCC supply voltage."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Open-drain serial data input and output that may be wire-OR'ed with other open-drain or open-collector devices."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "Serial clock input; data is clocked in on the positive edge and clocked out on the negative edge of SCL."
      },
      {
        "number": "7",
        "name": "WCB",
        "type": "input",
        "description": "Active-low write control: when connected to VCC all write operations are inhibited, when connected to Vss normal writes are allowed, and it is internally pulled down to Vss if left floating."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, specified from 1.7 V to 5.5 V in the DC characteristics."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin numbers and names are taken from Table 1-1 (DIP8/SOP8/MSOP8/TSSOP8/DFN8 packages), which applies; The datasheet lists the VCC pin type as 'Power'; it is mapped to KiCad class power_in here."
        ],
        "pages_sent": 19,
        "cost_usd": 0.0558,
        "at": "2026-10-16T02:59:00"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756372576287772672",
        "pages": 19,
        "sha256": "ade6fc1683c10678",
        "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": "at24c128n.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": 0.0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at24c128n-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": 0.0,
        "footprint_binding": "identity",
        "sha256": "9a3ff99286dd78c6201915fa4a68dea1ddda1bd6b0176e1dd9327debfacc87b3",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}