CD14538BM

{
  "slug": "cd14538bm",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Pre-ordered Chips, SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface ics",
    "cd14538bm",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cd14538bm.kicad_sym",
    "cd14538bm.kicad_mod",
    "cd14538bm.glb",
    "cd14538bm.step",
    "cd14538bm.lbr",
    "docs/hero.png",
    "docs/cd14538bm-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd14538bm-hero.glb",
    "cd14538bm-hero.overlay.json",
    "cd14538bm-etched.glb"
  ],
  "component": {
    "mpn": "CD14538BM",
    "manufacturer": "Texas Instruments",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Interface ICs",
    "subcategory": "Pre-ordered Chips",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd14538bm.pdf",
    "parts": {
      "symbol": "cd14538bm.kicad_sym",
      "footprint": "cd14538bm.kicad_mod",
      "model_3d": "cd14538bm-hero.glb",
      "model_3d_plain": "cd14538bm-etched.glb",
      "model_3d_step": "cd14538bm-etched.step",
      "model_3d_step_plain": "cd14538bm.step",
      "lbr": "cd14538bm.lbr"
    },
    "distributor_links": {
      "lcsc": "C2870181"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T23:05:26Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 711 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cx1",
        "type": "passive",
        "description": "External timing capacitor terminal for monostable 1, electrically connected internally with terminals 8 and 15 per the datasheet note."
      },
      {
        "number": "2",
        "name": "Rx Cx(1)",
        "type": "passive",
        "description": "Common external timing resistor/capacitor junction for monostable 1; Rx minimum is 4 kΩ and Cx range is 0 pF to 100 µF, with T = RxCx."
      },
      {
        "number": "3",
        "name": "RESET(1)",
        "type": "input",
        "description": "Active-low reset for monostable 1 that immediately terminates the output pulse; tie to VDD if unused."
      },
      {
        "number": "4",
        "name": "+TR(1)",
        "type": "input",
        "description": "Leading-edge (rising) trigger input of monostable 1 with Schmitt-trigger input; tie to VSS if unused."
      },
      {
        "number": "5",
        "name": "-TR(1)",
        "type": "input",
        "description": "Trailing-edge (falling) trigger input of monostable 1 with Schmitt-trigger input; tie to VDD if unused."
      },
      {
        "number": "6",
        "name": "Q1",
        "type": "output",
        "description": "Buffered Q output of monostable 1."
      },
      {
        "number": "7",
        "name": "Q1̅",
        "type": "output",
        "description": "Buffered complementary Q-bar output of monostable 1."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground/negative supply terminal, electrically connected internally with terminals 1 and 15."
      },
      {
        "number": "9",
        "name": "Q2̅",
        "type": "output",
        "description": "Buffered complementary Q-bar output of monostable 2."
      },
      {
        "number": "10",
        "name": "Q2",
        "type": "output",
        "description": "Buffered Q output of monostable 2."
      },
      {
        "number": "11",
        "name": "-TR(2)",
        "type": "input",
        "description": "Trailing-edge (falling) trigger input of monostable 2 with Schmitt-trigger input; tie to VDD if unused."
      },
      {
        "number": "12",
        "name": "+TR(2)",
        "type": "input",
        "description": "Leading-edge (rising) trigger input of monostable 2 with Schmitt-trigger input; tie to VSS if unused."
      },
      {
        "number": "13",
        "name": "RESET(2)",
        "type": "input",
        "description": "Active-low reset for monostable 2 that immediately terminates the output pulse; tie to VDD if unused."
      },
      {
        "number": "14",
        "name": "Rx Cx(2)",
        "type": "passive",
        "description": "Common external timing resistor/capacitor junction for monostable 2; Rx minimum is 4 kΩ and Cx range is 0 pF to 100 µF, with T = RxCx."
      },
      {
        "number": "15",
        "name": "Cx2",
        "type": "passive",
        "description": "External timing capacitor terminal for monostable 2, electrically connected internally with terminals 1 and 8 per the datasheet note."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply terminal; recommended 3 V to 18 V, absolute maximum -0.5 V to +20 V referenced to VSS."
      }
    ],
    "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": "vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Page 1 note says terminals 1, 8, 15 are electrically connected internally; pin 1 and 15 typed passiv",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.1836,
        "at": "2026-10-22T23:05:12"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd14538bm.pdf",
        "pages": 24,
        "sha256": "2b382f6ad28a94bf",
        "source_tier": "mfr"
      },
      "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": "cd14538bm.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd14538bm-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "94028acab0a122786e984c77f7c45896e0ea51e0fdf1f98ac8583def8e50368a",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}