AT25256B-XHL-T

{
  "slug": "at25256b-xhl-t",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech EEPROM, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "memory",
    "at25256b-xhl-t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at25256b-xhl-t.kicad_sym",
    "at25256b-xhl-t.kicad_mod",
    "at25256b-xhl-t.glb",
    "at25256b-xhl-t.step",
    "at25256b-xhl-t.lbr",
    "docs/hero.png",
    "docs/at25256b-xhl-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at25256b-xhl-t-hero.glb",
    "at25256b-xhl-t-hero.overlay.json",
    "at25256b-xhl-t-etched.glb"
  ],
  "component": {
    "mpn": "AT25256B-XHL-T",
    "manufacturer": "Microchip Tech",
    "package": "TSSOP-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589793629792333824",
    "parts": {
      "symbol": "at25256b-xhl-t.kicad_sym",
      "footprint": "at25256b-xhl-t.kicad_mod",
      "model_3d": "at25256b-xhl-t-hero.glb",
      "model_3d_plain": "at25256b-xhl-t-etched.glb",
      "model_3d_step": "at25256b-xhl-t-etched.step",
      "model_3d_step_plain": "at25256b-xhl-t.step",
      "lbr": "at25256b-xhl-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C616790",
      "digikey": "AT25256B-XHL-TTR-ND",
      "mouser": "556-AT25256B-XHL-T"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T11:31:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "AT25256B-XHL-TTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "556-AT25256B-XHL-T",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "The device is selected when CS is low, and when deselected SI is ignored and SO stays in high-impedance; a pull-up to VCC of 10 kΩ or less is recommended, with a low level required on CS before any sequence starts after power-up."
      },
      {
        "number": "2",
        "name": "SO",
        "type": "output",
        "description": "Serial Data Output transfers read data out of the device, shifting it after the falling edge of SCK, and is high-impedance when the device is not selected."
      },
      {
        "number": "3",
        "name": "WP",
        "type": "input",
        "description": "Write-Protect allows normal read/write operation when high, and when driven low with WPEN set to 1 it inhibits all writes to the STATUS register; it should be driven high or low as appropriate."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground is the ground reference for the device power supply and should be connected to system ground."
      },
      {
        "number": "5",
        "name": "SI",
        "type": "input",
        "description": "Serial Data Input receives instructions, addresses and data, latched on the rising edge of SCK, and is ignored while HOLD is asserted."
      },
      {
        "number": "6",
        "name": "SCK",
        "type": "input",
        "description": "Serial Data Clock synchronizes communication with the master, latching SI on the rising edge and clocking SO out on the falling edge."
      },
      {
        "number": "7",
        "name": "HOLD",
        "type": "input",
        "description": "Suspend Serial Input pauses serial communication when driven low while SCK is low, during which SO is high-impedance and SI and SCK are ignored; it should be driven high or low as appropriate."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Device Power Supply supplies the source voltage, which operates from 1.8 V to 5.5 V, and operation at invalid VCC voltages may produce spurious results."
      }
    ],
    "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: The TSSOP package drawing pages (around pages 30-31) are not included in the 22 pages provided, so t; The VCC operating range of 1.8 V to 5.5 V is taken from the Description section (page 7), which stat"
        ],
        "pages_sent": 22,
        "cost_usd": 0.0634,
        "at": "2026-10-20T11:31:38"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589793629792333824",
        "pages": 42,
        "sha256": "0166fe1a8508df27",
        "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": "at25256b-xhl-t.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": "at25256b-xhl-t-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": "6b47ba2d61f230d4522432785214e9b58a504859671e4be6d2e5d57f0986ec89",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}