SN75176BD

{
  "slug": "sn75176bd",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments RS-485/RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "sn75176bd",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn75176bd.kicad_sym",
    "sn75176bd.kicad_mod",
    "sn75176bd.glb",
    "sn75176bd.step",
    "sn75176bd.lbr",
    "docs/hero.png",
    "docs/sn75176bd-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn75176bd-hero.glb",
    "sn75176bd-hero.overlay.json",
    "sn75176bd-etched.glb"
  ],
  "component": {
    "mpn": "SN75176BD",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "RS-485/RS-422 ICs",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn75176bd.pdf",
    "parts": {
      "symbol": "sn75176bd.kicad_sym",
      "footprint": "sn75176bd.kicad_mod",
      "model_3d": "sn75176bd-hero.glb",
      "model_3d_plain": "sn75176bd-etched.glb",
      "model_3d_step": "sn75176bd-etched.step",
      "model_3d_step_plain": "sn75176bd.step",
      "lbr": "sn75176bd.lbr"
    },
    "distributor_links": {
      "lcsc": "C2866996"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:01:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "R",
        "type": "output",
        "description": "Logic data output from the RS-485 receiver; 3-state, high impedance when RE is high, with VOL max 0.45 V at 8 mA and VOH min 2.7 V at -400 µA."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receive enable, active low; high-level input voltage min 2 V and low-level max 0.8 V, and can be tied to DE for direction control."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver enable, active high; high-level input voltage min 2 V and low-level max 0.8 V, and can be tied to RE for direction control."
      },
      {
        "number": "4",
        "name": "D",
        "type": "input",
        "description": "Logic data input to the RS-485 driver; high-level input voltage min 2 V and low-level max 0.8 V."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground pin."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "RS-422 or RS-485 data line (driver output and receiver input) with a bus voltage range of -7 V to 12 V and driver output up to ±60 mA."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "RS-422 or RS-485 data line (driver output and receiver input) with a bus voltage range of -7 V to 12 V and driver output up to ±60 mA."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Power input; connect to 5-V power source, recommended range 4.75 V to 5.25 V (absolute maximum 7 V)."
      }
    ],
    "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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet text is partly in Chinese, but the pin table is in English and is unambiguous. SN75176"
        ],
        "pages_sent": 28,
        "cost_usd": 0.1768,
        "at": "2026-10-22T22:01:01"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn75176bd.pdf",
        "pages": 28,
        "sha256": "7a0f14f57c069238",
        "source_tier": "mfr"
      },
      "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": [
      {
        "file": "sn75176bd.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn75176bd-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "afd780c07d6f11fce734b2c3c4e69ebe4d66194ac1a663b1fb855bb81f8ca5ac",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}