AT24C256B-TH-T-TUDI

{
  "slug": "at24c256b-th-t-tudi",
  "version": "0.1.0",
  "type": "component",
  "description": "Tudi EEPROM, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "memory",
    "at24c256b-th-t-tudi",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at24c256b-th-t-tudi.kicad_sym",
    "at24c256b-th-t-tudi.kicad_mod",
    "at24c256b-th-t-tudi.glb",
    "at24c256b-th-t-tudi.step",
    "at24c256b-th-t-tudi.lbr",
    "docs/hero.png",
    "docs/at24c256b-th-t-tudi-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at24c256b-th-t-tudi-hero.glb",
    "at24c256b-th-t-tudi-hero.overlay.json",
    "at24c256b-th-t-tudi-etched.glb"
  ],
  "component": {
    "mpn": "AT24C256B-TH-T-TUDI",
    "manufacturer": "Tudi",
    "package": "TSSOP-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/46b50488677057616cf20c7e34543d68.pdf",
    "parts": {
      "symbol": "at24c256b-th-t-tudi.kicad_sym",
      "footprint": "at24c256b-th-t-tudi.kicad_mod",
      "model_3d": "at24c256b-th-t-tudi-hero.glb",
      "model_3d_plain": "at24c256b-th-t-tudi-etched.glb",
      "model_3d_step": "at24c256b-th-t-tudi-etched.step",
      "model_3d_step_plain": "at24c256b-th-t-tudi.step",
      "lbr": "at24c256b-th-t-tudi.lbr"
    },
    "distributor_links": {
      "lcsc": "C36533644"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T09:39:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A0",
        "type": "input",
        "description": "Device address input hardwired to GND or Vcc, internally pulled down to GND if left floating, with up to eight 256K devices addressable on one bus."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Device address input hardwired to GND or Vcc, internally pulled down to GND if left floating, with up to eight 256K devices addressable on one bus."
      },
      {
        "number": "3",
        "name": "A2",
        "type": "input",
        "description": "Device address input hardwired to GND or Vcc, internally pulled down to GND if left floating, with up to eight 256K devices addressable on one bus."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Bidirectional serial data pin, open-drain driven and may be wire-ORed with other open-drain or open-collector devices."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "Serial clock input that positive-edge clocks data into and negative-edge clocks data out of the EEPROM."
      },
      {
        "number": "7",
        "name": "WP",
        "type": "input",
        "description": "Write protect input: GND allows normal writes, Vcc inhibits all write operations, and a floating pin is internally pulled down to GND."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 1.8V to 5.5V operating range."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pinout diagram on page 2 is shared by SOP8, DIP8 and TSSOP8, so these pin numbers come from that; The datasheet does not label VCC in the pin-function table on page 3. The VCC name for pin 8 comes f",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 18,
        "cost_usd": 0.3936,
        "at": "2026-10-20T09:39:34"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/46b50488677057616cf20c7e34543d68.pdf",
        "pages": 18,
        "sha256": "d618b66918fa7e6e",
        "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": "at24c256b-th-t-tudi.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "cf28a51742b2e31065e201d1b313207140cbfb49062efd938788f7a310d02738",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at24c256b-th-t-tudi-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3f94f6142cf7388e105c6992199bd6e86da831fc19b036421247e80a027fdf6c",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}