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Ray Set visibility: public f44a507 6d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "74vhc123amx",
  "title": "74VHC123AMX",
  "brief": "onsemi Monostable Multivibrators, SOIC-16. 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",
    "logic",
    "74vhc123amx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "74VHC123AMX",
    "manufacturer": "onsemi",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Monostable Multivibrators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/64be4cafaf584f44ad7b4642345b107f.pdf",
    "parts": {
      "symbol": "74vhc123amx.kicad_sym",
      "footprint": "74vhc123amx.kicad_mod",
      "model_3d": "74vhc123amx-hero.glb",
      "model_3d_plain": "74vhc123amx-etched.glb",
      "model_3d_step": "74vhc123amx-etched.step",
      "model_3d_step_plain": "74vhc123amx.step",
      "lbr": "74vhc123amx.lbr"
    },
    "distributor_links": {
      "lcsc": "C6636",
      "digikey": "74VHC123AMXTR-ND",
      "mouser": "512-74VHC123AMX"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T05:40:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "74VHC123AMXTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "512-74VHC123AMX",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1A",
        "type": "input",
        "description": "Negative-edge trigger input of multivibrator 1; can be used as an inhibit input."
      },
      {
        "number": "2",
        "name": "1B",
        "type": "input",
        "description": "Positive-edge trigger input of multivibrator 1; can be used as an inhibit input."
      },
      {
        "number": "3",
        "name": "1CLR",
        "type": "input",
        "description": "Active-low reset input of multivibrator 1; a LOW resets the one-shot, and a rising edge can trigger it while A is LOW and B is HIGH."
      },
      {
        "number": "4",
        "name": "1Q̄",
        "type": "output",
        "description": "Complementary output of multivibrator 1."
      },
      {
        "number": "5",
        "name": "2Q",
        "type": "output",
        "description": "Output of multivibrator 2."
      },
      {
        "number": "6",
        "name": "2Cx",
        "type": "passive",
        "description": "External capacitor connection for multivibrator 2; Cx has no limit."
      },
      {
        "number": "7",
        "name": "2Rx/Cx",
        "type": "passive",
        "description": "External resistor/capacitor common node for multivibrator 2; Rx must be >5kΩ at VCC=2.0V and >1kΩ at VCC>3.0V."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "9",
        "name": "2A",
        "type": "input",
        "description": "Negative-edge trigger input of multivibrator 2; can be used as an inhibit input."
      },
      {
        "number": "10",
        "name": "2B",
        "type": "input",
        "description": "Positive-edge trigger input of multivibrator 2; can be used as an inhibit input."
      },
      {
        "number": "11",
        "name": "2CLR",
        "type": "input",
        "description": "Active-low reset input of multivibrator 2; a LOW resets the one-shot, and a rising edge can trigger it while A is LOW and B is HIGH."
      },
      {
        "number": "12",
        "name": "2Q̄",
        "type": "output",
        "description": "Complementary output of multivibrator 2."
      },
      {
        "number": "13",
        "name": "1Q",
        "type": "output",
        "description": "Output of multivibrator 1."
      },
      {
        "number": "14",
        "name": "1Cx",
        "type": "passive",
        "description": "External capacitor connection for multivibrator 1; Cx has no limit."
      },
      {
        "number": "15",
        "name": "1Rx/Cx",
        "type": "passive",
        "description": "External resistor/capacitor common node for multivibrator 1; Rx must be >5kΩ at VCC=2.0V and >1kΩ at VCC>3.0V."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended 2.0V to 5.5V (absolute maximum -0.5V to +7.0V)."
      }
    ],
    "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: Pin 4 is labelled 1Q̄ (overbar) in the connection diagram and pin 12 is 2Q̄; the overbars come from ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 14,
        "cost_usd": 0.322,
        "at": "2026-10-18T05:39:12"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/64be4cafaf584f44ad7b4642345b107f.pdf",
        "pages": 14,
        "sha256": "83f1f5557ec7ba1b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "74vhc123amx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74vhc123amx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "36bd3e42218529ca7f765b7baefd2c19ccb4f944b20da438fe716a10e425f026",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "SOIC-16",
      "Category": "Logic",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "83f1f5557ec7ba1b82215b5fa6cca7c99cb8189ab2b9143662490b556a616a2b",
      "rows": [
        {
          "name": "Supply voltage (absolute maximum)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "DC input voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input diode current (absolute maximum)",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output diode current (absolute maximum)",
          "symbol": "IOK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "DC output current (absolute maximum)",
          "symbol": "IOUT",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "DC VCC/GND current (absolute maximum)",
          "symbol": "ICC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature (absolute maximum)",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage (recommended operating)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (recommended operating)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "TOPR",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input rise and fall time (CLR only)",
          "symbol": "tr, tf",
          "kind": "recommended_operating",
          "unit": "ns/V",
          "min": 0,
          "typ": null,
          "max": 100,
          "conditions": "VCC = 3.3 V ± 0.3 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input rise and fall time (CLR only)",
          "symbol": "tr, tf",
          "kind": "recommended_operating",
          "unit": "ns/V",
          "min": 0,
          "typ": null,
          "max": 20,
          "conditions": "VCC = 5.0 V ± 0.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "External resistor Rx",
          "symbol": "Rx",
          "kind": "recommended_operating",
          "unit": "kΩ",
          "min": 5,
          "typ": null,
          "max": null,
          "conditions": "VCC = 2.0 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "External resistor Rx",
          "symbol": "Rx",
          "kind": "recommended_operating",
          "unit": "kΩ",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "VCC > 3.0 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "HIGH level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": null,
          "conditions": "VCC = 2.0 V; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "x VCC",
          "min": 0.7,
          "typ": null,
          "max": null,
          "conditions": "VCC = 3.0 to 5.5 V; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "LOW level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VCC = 2.0 V; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "LOW level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "x VCC",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "VCC = 3.0 to 5.5 V; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.9,
          "typ": 2,
          "max": null,
          "conditions": "VCC = 2.0 V; VIN = VIH or VIL; IOH = –50µA; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.9,
          "typ": 3,
          "max": null,
          "conditions": "VCC = 3.0 V; VIN = VIH or VIL; IOH = –50µA; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": 4.5,
          "max": null,
          "conditions": "VCC = 4.5 V; VIN = VIH or VIL; IOH = –50µA; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.48,
          "typ": null,
          "max": null,
          "conditions": "VCC = 3.0 V; VIN = VIH or VIL; IOH = –4mA; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "HIGH level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.8,
          "typ": null,
          "max": null,
          "conditions": "VCC = 4.5 V; VIN = VIH or VIL; IOH = –8mA; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "LOW level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0,
          "max": 0.1,
          "conditions": "VCC = 2.0 V; VIN = VIH or VIL; IOL = 50µA; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "LOW level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.44,
          "conditions": "VCC = 3.0 V; VIN = VIH or VIL; IOL = 4mA; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN = 5.5 V or GND; VCC = 0–5.5 V; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Rx/Cx terminal off-state current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": -2.5,
          "typ": null,
          "max": 2.5,
          "conditions": "VCC = 5.5 V; VIN = VCC or GND; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "VCC = 5.5 V; VIN = VCC or GND; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Active-state supply current (per circuit)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 160,
          "max": 280,
          "conditions": "VCC = 3.0 V; VIN = VCC or GND; Rx/Cx = 0.5 VCC; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Active-state supply current (per circuit)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 380,
          "max": 650,
          "conditions": "VCC = 4.5 V; VIN = VCC or GND; Rx/Cx = 0.5 VCC; TA = -40 to 85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay (A, B to Q, Q̅)",
          "symbol": "tPLH, tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 1,
          "typ": 13.4,
          "max": 24,
          "conditions": "VCC = 3.3 ± 0.3 V; CL = 15 pF; TA = -40 to 85°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay (A, B to Q, Q̅)",
          "symbol": "tPLH, tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 1,
          "typ": 15.9,
          "max": 27.5,
          "conditions": "VCC = 3.3 ± 0.3 V; CL = 50 pF; TA = -40 to 85°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay (A, B to Q, Q̅)",
          "symbol": "tPLH, tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 1,
          "typ": 8.1,
          "max": 14,
          "conditions": "VCC = 5.0 ± 0.5 V; CL = 15 pF; TA = -40 to 85°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay (A, B to Q, Q̅)",
          "symbol": "tPLH, tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 1,
          "typ": 9.6,
          "max": 16,
          "conditions": "VCC = 5.0 ± 0.5 V; CL = 50 pF; TA = -40 to 85°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay (CLR trigger to Q, Q̅)",
          "symbol": "tPLH, tPHL",
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