main
Ray Set visibility: public a4946c0 1d ago
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609
{
  "schema_version": 1,
  "type": "component",
  "slug": "at21cs11-stu10-t",
  "title": "AT21CS11-STU10-T",
  "brief": "Microchip Tech EEPROM, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "memory",
    "at21cs11-stu10-t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AT21CS11-STU10-T",
    "manufacturer": "Microchip Tech",
    "package": "SOT-23-3",
    "pin_count": 3,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588940159878639616",
    "parts": {
      "symbol": "at21cs11-stu10-t.kicad_sym",
      "footprint": "at21cs11-stu10-t.kicad_mod",
      "model_3d": "at21cs11-stu10-t-hero.glb",
      "model_3d_plain": "at21cs11-stu10-t-etched.glb",
      "model_3d_step": "at21cs11-stu10-t-etched.step",
      "model_3d_step_plain": "at21cs11-stu10-t.step",
      "lbr": "at21cs11-stu10-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C2061961",
      "digikey": "AT21CS11-STU10-TTR-ND",
      "mouser": "579-AT21CS11-STU10-T"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T20:59:56Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "AT21CS11-STU10-TTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "579-AT21CS11-STU10-T",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SI/O",
        "type": "bidirectional",
        "description": "Open-drain bidirectional serial input/output that must be pulled high through an external pull-up resistor, and also supplies device power from 2.7V to 4.5V on the AT21CS11."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No Connect pin on the 3-lead SOT23 package, with no electrical function specified in the datasheet."
      },
      {
        "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: Pin numbers were taken from Table 1-1 (Pin Function Table), where the 3-Lead SOT23 column gives SI/O; The datasheet gives no electrical description for the NC pin beyond 'No Connect'; the description re"
        ],
        "pages_sent": 17,
        "cost_usd": 0.0493,
        "at": "2026-10-20T20:55:56"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588940159878639616",
        "pages": 47,
        "sha256": "75dfc953749e0deb",
        "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": "at21cs11-stu10-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at21cs11-stu10-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7655faad62b0c68de52bbfe12e5eb59ae6b8b9f342b69bf58d27309e011c2984",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "SOT-23-3",
      "Category": "Memory",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "75dfc953749e0deb703c69f8617cbccdd700515894adc18398ade9bb634a443f",
      "rows": [
        {
          "name": "Operating Temperature (Case)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Industrial Temperature Range",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VPUP Pull-up Voltage Voltage Range",
          "symbol": "VPUP",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 4.5,
          "conditions": "AT21CS11 operating range",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Pull-up Voltage",
          "symbol": "VPUP",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 4.5,
          "conditions": "High-Speed mode",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Pull-up Resistance",
          "symbol": "RPUP",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 0.2,
          "typ": null,
          "max": 1.8,
          "conditions": "VPUP = 2.7V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Pull-up Resistance",
          "symbol": "RPUP",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 0.4,
          "typ": null,
          "max": 5.4,
          "conditions": "VPUP = 4.5V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Active Current, Read",
          "symbol": "IA1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.08,
          "max": 0.3,
          "conditions": "VPUP = 4.5V; SI/O = VPUP",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Active Current, Write",
          "symbol": "IA2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.2,
          "max": 0.5,
          "conditions": "VPUP = 4.5V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Standby Current",
          "symbol": "ISB",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.6,
          "max": 1.5,
          "conditions": "VPUP = 2.7V; SI/O = VPUP",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Standby Current",
          "symbol": "ISB",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.7,
          "max": 3,
          "conditions": "VPUP = 4.5V; SI/O = VPUP",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input Low Level",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.6,
          "typ": null,
          "max": 0.5,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "SI/O Hysteresis",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "V",
          "min": 0.128,
          "typ": null,
          "max": 1.4,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Output Low Level",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.4,
          "conditions": "IOL = 4 mA",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Bus Capacitance",
          "symbol": "CBUS",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Reset Low Time, Device in Inactive State",
          "symbol": "tRESET",
          "kind": "timing",
          "unit": "µs",
          "min": 96,
          "typ": null,
          "max": null,
          "conditions": "High Speed",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Discharge Low Time, Device in Active Write Cycle (tWR)",
          "symbol": "tDSCHG",
          "kind": "timing",
          "unit": "µs",
          "min": 150,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Reset Recovery Time",
          "symbol": "tRRT",
          "kind": "timing",
          "unit": "µs",
          "min": 8,
          "typ": null,
          "max": null,
          "conditions": "High Speed",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Discovery Response Request",
          "symbol": "tDRR",
          "kind": "timing",
          "unit": "µs",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "High Speed",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Discovery Response Acknowledge Time",
          "symbol": "tDACK",
          "kind": "timing",
          "unit": "µs",
          "min": 8,
          "typ": null,
          "max": 24,
          "conditions": "High Speed",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Master Strobe Discovery Response Time",
          "symbol": "tMSDR",
          "kind": "timing",
          "unit": "µs",
          "min": 2,
          "typ": null,
          "max": 6,
          "conditions": "High Speed",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "SI/O High Time for Start/Stop Condition",
          "symbol": "tHTSS",
          "kind": "timing",
          "unit": "µs",
          "min": 150,
          "typ": null,
          "max": null,
          "conditions": "High Speed",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Bit Frame Duration",
          "symbol": "tBIT",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "Input and Output Bit Frame; High Speed",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "SI/O Low Time, Logic '0' Condition",
          "symbol": "tLOW0",
          "kind": "timing",
          "unit": "µs",
          "min": 6,
          "typ": null,
          "max": 16,
          "conditions": "Input Bit Frame; High Speed",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "SI/O Low Time, Logic '1' Condition",
          "symbol": "tLOW1",
          "kind": "timing",
          "unit": "µs",
          "min": 1,
          "typ": null,
          "max": 2,
          "conditions": "Input Bit Frame; High Speed",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Master SI/O Low Time During Read",
          "symbol": "tRD",
          "kind": "timing",
          "unit": "µs",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "Output Bit Frame; High Speed",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Master Read Strobe Time",
          "symbol": "tMRS",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Output Bit Frame; High Speed",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Data Output Hold Time (Logic '0')",
          "symbol": "tHLD0",
          "kind": "timing",
          "unit": "µs",
          "min": 2,
          "typ": null,
          "max": 6,
          "conditions": "Output Bit Frame; High Speed",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Slave Recovery Time",
          "symbol": "tRCV",
          "kind": "timing",
          "unit": "µs",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "Input and Output Bit Frame; High Speed",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Write Cycle Time",
          "symbol": "tWR",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VPUP (min.) < VPUP < VPUP (max.), TA = 25°C, Byte or Page Write mode",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Write Endurance",
          "symbol": "",
          "kind": "electrical",
          "unit": "Write Cycles",
          "min": 1000000,
          "typ": null,
          "max": null,
          "conditions": "VPUP (min.) < VPUP < VPUP (max.), TA = 25°C, Byte or Page Write mode",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Data Retention",
          "symbol": "",
          "kind": "electrical",
          "unit": "Years",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "TA = 55°C",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Temperature under bias",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Voltage on any pin with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.6,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "DC output current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "at21cs11-stu10-t"
  ],
  "discovery_pitch": "AT21CS11-STU10-T (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at21cs11-stu10-t.kicad_sym",
    "at21cs11-stu10-t.kicad_mod",
    "at21cs11-stu10-t.glb",
    "at21cs11-stu10-t.step",
    "at21cs11-stu10-t.lbr",
    "docs/hero.png",
    "docs/at21cs11-stu10-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at21cs11-stu10-t-hero.glb",
    "at21cs11-stu10-t-hero.overlay.json",
    "at21cs11-stu10-t-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}