AT21CS01-STUM10-T

{
  "slug": "at21cs01-stum10-t",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech EEPROM, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "memory",
    "at21cs01-stum10-t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at21cs01-stum10-t.kicad_sym",
    "at21cs01-stum10-t.kicad_mod",
    "at21cs01-stum10-t.glb",
    "at21cs01-stum10-t.step",
    "at21cs01-stum10-t.lbr",
    "docs/hero.png",
    "docs/at21cs01-stum10-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at21cs01-stum10-t-hero.glb",
    "at21cs01-stum10-t-hero.overlay.json"
  ],
  "component": {
    "mpn": "AT21CS01-STUM10-T",
    "manufacturer": "Microchip Tech",
    "package": "SOT-23-3",
    "pin_count": 3,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588915029609484288",
    "parts": {
      "symbol": "at21cs01-stum10-t.kicad_sym",
      "footprint": "at21cs01-stum10-t.kicad_mod",
      "model_3d": "at21cs01-stum10-t-hero.glb",
      "model_3d_plain": "at21cs01-stum10-t.glb",
      "model_3d_step": "at21cs01-stum10-t-etched.step",
      "model_3d_step_plain": "at21cs01-stum10-t.step",
      "lbr": "at21cs01-stum10-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C616192",
      "mouser": "556-AT21CS01STUM10T"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T23:43:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 514 calls left today"
      },
      "mouser": {
        "pn": "556-AT21CS01STUM10T",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SI/O",
        "type": "bidirectional",
        "description": "Open-drain serial input/output pin that must be pulled high through an external pull-up resistor, may be wire-ORed with other open-drain devices, and also powers the device from a pull-up voltage of 1.7V to 3.6V for AT21CS01 (2.7V to 4.5V for AT21CS11)."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; this pin is not connected internally and is listed as NC for the 3-lead SOT23 package in Table 1-1."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the power supply, which should be connected to the system ground."
      }
    ],
    "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: Table 1-1 assigns GND to SOT23 pin 3 and NC to pin 2, but the 3-Lead SOT23 top-view drawing on page ; The exact ordering code AT21CS01-STUM10-T does not appear in the ordering examples. The only SOT23 ("
        ],
        "pages_sent": 17,
        "cost_usd": 0.0601,
        "at": "2026-10-09T23:41:32"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588915029609484288",
        "pages": 47,
        "sha256": "f03eb80197165397",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "at21cs01-stum10-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at21cs01-stum10-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a9df0f8a23bfa8ef7d24a934cac257963c8321368ee556d1f855a82c1b78f886",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}