74AHC123AD-Q100J

{
  "slug": "74ahc123ad-q100j",
  "version": "0.1.0",
  "type": "component",
  "description": "Nexperia Monostable Multivibrators, SO-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic ics",
    "74ahc123ad-q100j",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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    "path": "docs/hero.png"
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    "74ahc123ad-q100j.step",
    "74ahc123ad-q100j.lbr",
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    "74ahc123ad-q100j-hero.overlay.json",
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  "component": {
    "mpn": "74AHC123AD-Q100J",
    "manufacturer": "Nexperia",
    "package": "SO-16",
    "pin_count": 16,
    "category": "Logic ICs",
    "subcategory": "Monostable Multivibrators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588914586729000960",
    "parts": {
      "symbol": "74ahc123ad-q100j.kicad_sym",
      "footprint": "74ahc123ad-q100j.kicad_mod",
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      "model_3d_step": "74ahc123ad-q100j-etched.step",
      "model_3d_step_plain": "74ahc123ad-q100j.step",
      "lbr": "74ahc123ad-q100j.lbr"
    },
    "distributor_links": {
      "lcsc": "C554215",
      "digikey": "1727-74AHC123AD-Q100JTR-ND",
      "mouser": "771-74AHC123ADQ100J"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T01:34:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1727-74AHC123AD-Q100JTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "771-74AHC123ADQ100J",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1A",
        "type": "input",
        "description": "Negative-edge triggered input 1; the inputs are overvoltage tolerant to 5.5 V."
      },
      {
        "number": "2",
        "name": "1B",
        "type": "input",
        "description": "Positive-edge triggered input 1; the inputs are overvoltage tolerant to 5.5 V."
      },
      {
        "number": "3",
        "name": "1RD",
        "type": "input",
        "description": "Direct reset LOW and positive-edge triggered input 1; a LOW level on this input terminates the output pulse."
      },
      {
        "number": "4",
        "name": "1Q",
        "type": "output",
        "description": "Active LOW output 1 (complement of 1Q at pin 13); the overbar is not present in the extracted text."
      },
      {
        "number": "5",
        "name": "2Q",
        "type": "output",
        "description": "Active HIGH output 2."
      },
      {
        "number": "6",
        "name": "2CEXT",
        "type": "passive",
        "description": "External capacitor connection 2; for minimum noise generation the datasheet recommends grounding this pin externally to GND (pin 8)."
      },
      {
        "number": "7",
        "name": "2REXT/CEXT",
        "type": "passive",
        "description": "External resistor and capacitor connection 2; REXT must be at least 5 kΩ at VCC = 2.0 V and at least 1 kΩ when VCC > 3.0 V."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V)."
      },
      {
        "number": "9",
        "name": "2A",
        "type": "input",
        "description": "Negative-edge triggered input 2; the inputs are overvoltage tolerant to 5.5 V."
      },
      {
        "number": "10",
        "name": "2B",
        "type": "input",
        "description": "Positive-edge triggered input 2; the inputs are overvoltage tolerant to 5.5 V."
      },
      {
        "number": "11",
        "name": "2RD",
        "type": "input",
        "description": "Direct reset LOW and positive-edge triggered input 2; a LOW level on this input terminates the output pulse."
      },
      {
        "number": "12",
        "name": "2Q",
        "type": "output",
        "description": "Active LOW output 2 (complement of 2Q at pin 5); the overbar is not present in the extracted text."
      },
      {
        "number": "13",
        "name": "1Q",
        "type": "output",
        "description": "Active HIGH output 1."
      },
      {
        "number": "14",
        "name": "1CEXT",
        "type": "passive",
        "description": "External capacitor connection 1; for minimum noise generation the datasheet recommends grounding this pin externally to GND (pin 8)."
      },
      {
        "number": "15",
        "name": "1REXT/CEXT",
        "type": "passive",
        "description": "External resistor and capacitor connection 1; REXT must be at least 5 kΩ at VCC = 2.0 V and at least 1 kΩ when VCC > 3.0 V."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage: 2.0 V to 5.5 V for the 74AHC123A-Q100 variant (this MPN, which is CMOS input level)."
      }
    ],
    "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: In the extracted text the overbar on the complementary outputs is lost: pins 4 and 13 both read '1Q'; Table 5 gives a 2.0 V to 5.5 V supply range for the 74AHC123A-Q100 variant (this MPN); the 4.5 V to ; Pin types for the CEXT/REXT connections are assigned as passive because the datasheet does not class"
        ],
        "pages_sent": 21,
        "cost_usd": 0.0903,
        "at": "2026-10-19T01:33:55"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588914586729000960",
        "pages": 21,
        "sha256": "aba0f1e26c4e70db",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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        "units": "mm",
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}