TC1232EOA

{
  "schema_version": 1,
  "type": "component",
  "slug": "tc1232eoa",
  "title": "TC1232EOA",
  "brief": "Microchip Tech Monitors & Reset Circuits, SOIC-8. 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",
    "power supply chip",
    "tc1232eoa",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TC1232EOA",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "Monitors & Reset Circuits",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d9dd357afccd492abc8450078cf33c3b.pdf",
    "parts": {
      "symbol": "tc1232eoa.kicad_sym",
      "footprint": "tc1232eoa.kicad_mod",
      "model_3d": "tc1232eoa-hero.glb",
      "model_3d_plain": "tc1232eoa-etched.glb",
      "model_3d_step": "tc1232eoa-etched.step",
      "model_3d_step_plain": "tc1232eoa.step",
      "lbr": "tc1232eoa.lbr"
    },
    "distributor_links": {
      "lcsc": "C631913",
      "digikey": "TC1232EOA-ND",
      "mouser": "579-TC1232EOA"
    },
    "distributor_check": {
      "checked_at": "2026-10-24T01:24:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "TC1232EOA-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "579-TC1232EOA",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PB RST",
        "type": "input",
        "description": "Debounced push-button manual reset input that forces both reset outputs active when driven low, ignores pulses shorter than 1 ms, and recognizes pulses of 20 ms or greater."
      },
      {
        "number": "2",
        "name": "TD",
        "type": "input",
        "description": "Time-delay input that sets the watchdog timeout to 150 ms with TD tied to GND, 600 ms when left open, and 1.2 s when tied to VCC."
      },
      {
        "number": "3",
        "name": "TOL",
        "type": "input",
        "description": "Tolerance select input that sets the VCC trip point to 4.75 V (5%) when tied to GND and to 4.5 V (10%) when tied to VCC."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "5",
        "name": "RST",
        "type": "output",
        "description": "Active-high push-pull reset output that goes high on VCC below the selected threshold, PB RST forced low, watchdog timeout, or power-up, and is held active for a minimum of 250 ms."
      },
      {
        "number": "6",
        "name": "RST",
        "type": "output",
        "description": "Active-low open-drain reset output that goes low under the same conditions as RST (VCC below threshold, PB RST forced low, watchdog timeout, or power-up) and is held active for a minimum of 250 ms."
      },
      {
        "number": "7",
        "name": "ST",
        "type": "input",
        "description": "Watchdog strobe input where each falling edge resets the watchdog timer, and the input requires a minimum pulse width of 20 ns (tST) and must be strobed within the selected timeout period."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply for the device, specified at 4.0 V to 5.5 V (5.0 V typical)."
      }
    ],
    "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 functions are taken from Table 3-1 (8-pin PDIP/SOIC column). The pinout diagram text; The datasheet does not give a pin-level ratio for the 8-pin SOIC package beyond the table; the VCC s"
        ],
        "pages_sent": 24,
        "cost_usd": 0.0677,
        "at": "2026-10-24T01:24:36"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/d9dd357afccd492abc8450078cf33c3b.pdf",
        "pages": 24,
        "sha256": "bf8a3940fbb9a6ff",
        "source_tier": "mfr"
      },
      "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": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-24",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "SOIC-8",
      "Category": "Power Supply Chip",
      "Pins": "8"
    },
    "characteristics": {
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          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": 5,
          "max": 5.5,
          "conditions": "",
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        },
        {
          "name": "ST and PB RST Input High Level",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "Note 1",
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        {
          "name": "ST and PB RST Input Low Level",
          "symbol": "VIL",
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          "min": -0.3,
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        },
        {
          "name": "Input Leakage ST, TOL",
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          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
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        },
        {
          "name": "Output Current RST",
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          "kind": "electrical",
          "unit": "mA",
          "min": -1,
          "typ": -12,
          "max": null,
          "conditions": "VOH = 2.4V",
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        {
          "name": "Output Current RST, RST",
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        },
        {
          "name": "Operating Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 50,
          "max": 200,
          "conditions": "Note 2 (outputs open)",
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        },
        {
          "name": "VCC 5% Trip Point",
          "symbol": "VCCTP",
          "kind": "electrical",
          "unit": "V",
          "min": 4.5,
          "typ": 4.62,
          "max": 4.74,
          "conditions": "TOL = GND (Note 3)",
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          "source": "datasheet"
        },
        {
          "name": "VCC 10% Trip Point",
          "symbol": "VCCTP",
          "kind": "electrical",
          "unit": "V",
          "min": 4.25,
          "typ": 4.37,
          "max": 4.49,
          "conditions": "TOL = VCC (Note 3)",
          "source_page": 2,
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        },
        {
          "name": "Input Capacitance ST, TOL",
          "symbol": "CIN",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "TA = +25°C (Note 4)",
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        },
        {
          "name": "Output Capacitance RST, RST",
          "symbol": "COUT",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "TA = +25°C (Note 4)",
          "source_page": 2,
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        },
        {
          "name": "VCC Fall Time",
          "symbol": "tF",
          "kind": "timing",
          "unit": "µs",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "Note 1",
          "source_page": 3,
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        },
        {
          "name": "VCC Rise Time",
          "symbol": "tR",
          "kind": "timing",
          "unit": "µs",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "Note 1",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VCC Trip Point Detected to RST High and RST Low",
          "symbol": "tRPD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VCC falling",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VCC Trip Point Detected to RST High and RST Open",
          "symbol": "tRPU",
          "kind": "timing",
          "unit": "ms",
          "min": 250,
          "typ": 610,
          "max": 1000,
          "conditions": "VCC rising (Note 2)",
          "source_page": 3,
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        },
        {
          "name": "PB RST Pulse Width",
          "symbol": "tPB",
          "kind": "timing",
          "unit": "ms",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "Note 1",
          "source_page": 4,
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        },
        {
          "name": "PB RST Falling Edge Low to Reset Active",
          "symbol": "tPBD",
          "kind": "timing",
          "unit": "ms",
          "min": 1,
          "typ": 4,
          "max": 20,
          "conditions": "",
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        },
        {
          "name": "PB RST Rising Edge High to Reset Inactive",
          "symbol": "tRST",
          "kind": "timing",
          "unit": "ms",
          "min": 250,
          "typ": 610,
          "max": 1000,
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        },
        {
          "name": "ST Pulse Width",
          "symbol": "tST",
          "kind": "timing",
          "unit": "ns",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "",
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        },
        {
          "name": "ST Time-out Period",
          "symbol": "tTD",
          "kind": "timing",
          "unit": "ms",
          "min": 62.5,
          "typ": 150,
          "max": 250,
          "conditions": "TD Pin = 0V",
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        {
          "name": "ST Time-out Period",
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          "conditions": "TD Pin = Open",
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        },
        {
          "name": "ST Time-out Period",
          "symbol": "tTD",
          "kind": "timing",
          "unit": "ms",
          "min": 500,
          "typ": 1200,
          "max": 2000,
          "conditions": "TD Pin = VCC",
          "source_page": 4,
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        },
        {
          "name": "Voltage on Any Pin (With Respect to GND)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.8,
          "conditions": "With respect to GND",
          "source_page": 2,
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        },
        {
          "name": "Operating Temperature Range (E-Version)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "E-version, applies to TC1232EOA",
          "source_page": 2,
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        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "TC1232EOA (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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