SN75ALS191P

{
  "slug": "sn75als191p",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments RS-485 / RS-422 ICs, PDIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "sn75als191p",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn75als191p.kicad_sym",
    "sn75als191p.kicad_mod",
    "sn75als191p.glb",
    "sn75als191p.step",
    "sn75als191p.lbr",
    "docs/hero.png",
    "docs/sn75als191p-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn75als191p-hero.glb",
    "sn75als191p-hero.overlay.json"
  ],
  "component": {
    "mpn": "SN75ALS191P",
    "manufacturer": "Texas Instruments",
    "package": "PDIP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn75als191",
    "parts": {
      "symbol": "sn75als191p.kicad_sym",
      "footprint": "sn75als191p.kicad_mod",
      "model_3d": "sn75als191p-hero.glb",
      "model_3d_plain": "sn75als191p.glb",
      "model_3d_step": "sn75als191p-etched.step",
      "model_3d_step_plain": "sn75als191p.step",
      "lbr": "sn75als191p.lbr"
    },
    "distributor_links": {
      "lcsc": "C1544624",
      "digikey": "296-9965-5-ND",
      "mouser": "595-SN75ALS191P"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T22:02:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-9965-5-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN75ALS191P",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "5 V power supply positive terminal; recommended supply is 4.75 V to 5.25 V (5 V nominal) with an absolute maximum of 7 V."
      },
      {
        "number": "2",
        "name": "1A",
        "type": "input",
        "description": "Single-ended data input for channel 1, TTL and CMOS compatible, with VIH of at least 2 V and VIL of at most 0.8 V."
      },
      {
        "number": "3",
        "name": "2A",
        "type": "input",
        "description": "Single-ended data input for channel 2, TTL and CMOS compatible, with VIH of at least 2 V and VIL of at most 0.8 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal; all voltages are referenced to network ground."
      },
      {
        "number": "5",
        "name": "2Z",
        "type": "output",
        "description": "Inverting differential driver output for channel 2; it is low when input 2A is high and high when 2A is low, per the function table."
      },
      {
        "number": "6",
        "name": "2Y",
        "type": "output",
        "description": "Non-inverting differential driver output for channel 2; it follows input 2A (high when 2A is high, low when 2A is low) per the function table."
      },
      {
        "number": "7",
        "name": "1Z",
        "type": "output",
        "description": "Inverting differential driver output for channel 1; it is low when input 1A is high and high when 1A is low, per the function table."
      },
      {
        "number": "8",
        "name": "1Y",
        "type": "output",
        "description": "Non-inverting differential driver output for channel 1; it follows input 1A (high when 1A is high, low when 1A is low) per the function table."
      }
    ],
    "provenance": {
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      "factory_chain": {
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        "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": [],
        "pages_sent": 20,
        "cost_usd": 0.059,
        "at": "2026-10-07T22:02:11"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn75als191",
        "pages": 20,
        "sha256": "5f3d52313d5ecc3b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
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        "units": "mm",
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        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
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        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-07",
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      },
      {
        "file": "sn75als191p-etched.step",
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        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}