XD4538

{
  "slug": "xd4538",
  "version": "0.1.0",
  "type": "component",
  "description": "XINLUDA Monostable Multivibrators, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "xd4538",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "xd4538.kicad_sym",
    "xd4538.kicad_mod",
    "xd4538.glb",
    "xd4538.step",
    "xd4538.lbr",
    "docs/hero.png",
    "docs/xd4538-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "xd4538-hero.glb",
    "xd4538-hero.overlay.json",
    "xd4538-etched.glb"
  ],
  "component": {
    "mpn": "XD4538",
    "manufacturer": "XINLUDA",
    "package": "DIP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Monostable Multivibrators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905868905885696",
    "parts": {
      "symbol": "xd4538.kicad_sym",
      "footprint": "xd4538.kicad_mod",
      "model_3d": "xd4538-hero.glb",
      "model_3d_plain": "xd4538-etched.glb",
      "model_3d_step": "xd4538-etched.step",
      "model_3d_step_plain": "xd4538.step",
      "lbr": "xd4538.lbr"
    },
    "distributor_links": {
      "lcsc": "C556281"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T20:13:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "T1A",
        "type": "passive",
        "description": "External timing component pin of monostable A (RX/CX network); the datasheet gives no further detail for this pin."
      },
      {
        "number": "2",
        "name": "T2A",
        "type": "passive",
        "description": "Timing node of monostable A where external RX and CX connect; the voltage here is described as pin 2 in the retrigger operation, with input capacitance 10 pF."
      },
      {
        "number": "3",
        "name": "CDA",
        "type": "input",
        "description": "Active-LOW latched reset input of monostable A; while held low it inhibits triggers and forces Q low."
      },
      {
        "number": "4",
        "name": "AA INPUT",
        "type": "input",
        "description": "Trigger input A of monostable A, a valid trigger is recognized on a VSS-to-VDD rising edge while B and CD are at VDD."
      },
      {
        "number": "5",
        "name": "BA INPUT",
        "type": "input",
        "description": "Trigger input B of monostable A, a valid trigger is recognized on a VDD-to-VSS falling edge while A is at VSS and CD is at VDD."
      },
      {
        "number": "6",
        "name": "QA OUT",
        "type": "output",
        "description": "Q output of monostable A, normally low and high for the timed pulse; symmetrical sink and source capability."
      },
      {
        "number": "7",
        "name": "Q̄A OUT",
        "type": "output",
        "description": "Complementary (inverted) Q output of monostable A, with symmetrical sink and source capability."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground supply pin (VSS = 0 V)."
      },
      {
        "number": "9",
        "name": "Q̄B OUT",
        "type": "output",
        "description": "Complementary (inverted) Q output of monostable B, with symmetrical sink and source capability."
      },
      {
        "number": "10",
        "name": "QB OUT",
        "type": "output",
        "description": "Q output of monostable B, normally low and high for the timed pulse; symmetrical sink and source capability."
      },
      {
        "number": "11",
        "name": "BB INPUT",
        "type": "input",
        "description": "Trigger input B of monostable B, a valid trigger is recognized on a VDD-to-VSS falling edge while A is at VSS and CD is at VDD."
      },
      {
        "number": "12",
        "name": "AB INPUT",
        "type": "input",
        "description": "Trigger input A of monostable B, a valid trigger is recognized on a VSS-to-VDD rising edge while B and CD are at VDD."
      },
      {
        "number": "13",
        "name": "CDB",
        "type": "input",
        "description": "Active-LOW latched reset input of monostable B; while held low it inhibits triggers and forces Q low."
      },
      {
        "number": "14",
        "name": "T2B",
        "type": "passive",
        "description": "Timing node of monostable B where external RX and CX connect; the voltage here is described as pin 14 in the retrigger operation, with input capacitance 10 pF."
      },
      {
        "number": "15",
        "name": "T1B",
        "type": "passive",
        "description": "External timing component pin of monostable B (RX/CX network); the datasheet gives no further detail for this pin."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply pin, recommended 3 to 15 VDC, absolute maximum 18 VDC."
      }
    ],
    "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: The datasheet text doesn't say what T1A/T1B (pins 1 and 15) and T2A/T2B (pins 2 and 14) do. The text; The ordering table lists only DIP16, and the connection diagram is a top view of the 16-pin DIP, so ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.2223,
        "at": "2026-10-16T20:12:55"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905868905885696",
        "pages": 11,
        "sha256": "c87e093569e5ce95",
        "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": "xd4538.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "17a30b1f0ab3fd5384a1231e3c63c394888d5b952c542a8c189e023ed3467464",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "xd4538-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0c43ff9dd733b4bb8af928265ef738552f6c1c1decdfb6bd3ba06c818bca2a70",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}