SN75C189AD

{
  "slug": "sn75c189ad",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments RS232 ICs, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "sn75c189ad",
    "factory-2.0.0",
    "extractor-text"
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  "dependencies": {},
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    "path": "docs/hero.png"
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    "README.md",
    "sn75c189ad.kicad_sym",
    "sn75c189ad.kicad_mod",
    "sn75c189ad.glb",
    "sn75c189ad.step",
    "sn75c189ad.lbr",
    "docs/hero.png",
    "docs/sn75c189ad-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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  "component": {
    "mpn": "SN75C189AD",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://www.ti.com.cn/cn/lit/ds/symlink/sn75c189a.pdf",
    "parts": {
      "symbol": "sn75c189ad.kicad_sym",
      "footprint": "sn75c189ad.kicad_mod",
      "model_3d": "sn75c189ad-hero.glb",
      "model_3d_plain": "sn75c189ad.glb",
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      "model_3d_step_plain": "sn75c189ad.step",
      "lbr": "sn75c189ad.lbr"
    },
    "distributor_links": {
      "lcsc": "C1544893",
      "digikey": "296-1755-5-ND",
      "mouser": "595-SN75C189AD"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T21:34:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-1755-5-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "595-SN75C189AD",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1A",
        "type": "input",
        "description": "Receiver 1 input; accepts RS-232 signals from -25 V to +25 V with on-chip 1 µs noise filter"
      },
      {
        "number": "2",
        "name": "1 CONT",
        "type": "input",
        "description": "Receiver 1 response-control terminal for input threshold voltage adjustment (±1 mA)"
      },
      {
        "number": "3",
        "name": "1Y",
        "type": "output",
        "description": "Receiver 1 push-pull output; logic high when input open or shorted to ground"
      },
      {
        "number": "4",
        "name": "2A",
        "type": "input",
        "description": "Receiver 2 input; accepts RS-232 signals from -25 V to +25 V with on-chip 1 µs noise filter"
      },
      {
        "number": "5",
        "name": "2 CONT",
        "type": "input",
        "description": "Receiver 2 response-control terminal for input threshold voltage adjustment (±1 mA)"
      },
      {
        "number": "6",
        "name": "2Y",
        "type": "output",
        "description": "Receiver 2 push-pull output; logic high when input open or shorted to ground"
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V)"
      },
      {
        "number": "8",
        "name": "3Y",
        "type": "output",
        "description": "Receiver 3 push-pull output; logic high when input open or shorted to ground"
      },
      {
        "number": "9",
        "name": "3 CONT",
        "type": "input",
        "description": "Receiver 3 response-control terminal for input threshold voltage adjustment (±1 mA)"
      },
      {
        "number": "10",
        "name": "3A",
        "type": "input",
        "description": "Receiver 3 input; accepts RS-232 signals from -25 V to +25 V with on-chip 1 µs noise filter"
      },
      {
        "number": "11",
        "name": "4Y",
        "type": "output",
        "description": "Receiver 4 push-pull output; logic high when input open or shorted to ground"
      },
      {
        "number": "12",
        "name": "4 CONT",
        "type": "input",
        "description": "Receiver 4 response-control terminal for input threshold voltage adjustment (±1 mA)"
      },
      {
        "number": "13",
        "name": "4A",
        "type": "input",
        "description": "Receiver 4 input; accepts RS-232 signals from -25 V to +25 V with on-chip 1 µs noise filter"
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; 5 V nominal with 4.5 V to 6 V operating range"
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 24,
        "cost_usd": 0.1483,
        "at": "2026-10-05T21:34:37"
      },
      "datasheet": {
        "url": "https://www.ti.com.cn/cn/lit/ds/symlink/sn75c189a.pdf",
        "pages": 24,
        "sha256": "4d415b3c312c0209",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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}