THVD1450DR

{
  "schema_version": 1,
  "type": "component",
  "slug": "thvd1450dr",
  "title": "THVD1450DR",
  "brief": "Texas Instruments RS-485 / RS-422 ICs, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "thvd1450dr"
  ],
  "component": {
    "mpn": "THVD1450DR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://www.ti.com/lit/ds/symlink/thvd1450.pdf",
    "parts": {
      "symbol": "thvd1450dr.kicad_sym",
      "footprint": "thvd1450dr.kicad_mod",
      "model_3d": "thvd1450dr-etched.glb",
      "model_3d_plain": "thvd1450dr.glb",
      "model_3d_step": "thvd1450dr-etched.step",
      "model_3d_step_plain": "thvd1450dr.step",
      "lbr": "thvd1450dr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2671361"
    },
    "pins": [
      {
        "number": "1",
        "name": "R",
        "type": "output",
        "description": "Receive data output. CMOS logic-level output driven from the RS-485 bus differential receiver (A-B). High-impedance when RE is deasserted (high)."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receiver enable, active low. Drive low to enable the receiver output R; drive high to place R in Hi-Z. 2-MΩ internal pull-up so the pin defaults to disabled if left floating."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver enable, active high. Drive high to enable the differential driver onto the A/B bus; drive low to place the driver in Hi-Z. 2-MΩ internal pull-down so the driver defaults to disabled if left floating."
      },
      {
        "number": "4",
        "name": "D",
        "type": "input",
        "description": "Driver data input. CMOS logic-level input; drives the differential A/B outputs when DE is high."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference (0 V)."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "RS-485 differential bus I/O, non-inverting (A). Complementary to B. Withstands ±18 V bus fault and ±18 kV IEC 61000-4-2 contact ESD to GND."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "RS-485 differential bus I/O, inverting (B). Complementary to A. Withstands ±18 V bus fault and ±18 kV IEC 61000-4-2 contact ESD to GND."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input, 3.3 V to 5 V nominal (3.0-5.5 V operating). Decouple to GND with a 100-nF ceramic capacitor placed close to the pin."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/thvd1450.pdf",
        "pages": 54,
        "sha256": "58ecc4cc07dd1d32",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "thvd1450dr.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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "thvd1450dr-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": "2290e3457567ba84d2dcb246b2861a0ed65c62c21c12194c6038c71244c1515f",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8",
      "Category": "Interface",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "thvd1450dr"
  ],
  "discovery_pitch": "THVD1450DR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "thvd1450dr.kicad_sym",
    "thvd1450dr.kicad_mod",
    "thvd1450dr.glb",
    "thvd1450dr.step",
    "thvd1450dr-etched.step",
    "thvd1450dr.lbr",
    "docs/hero.png",
    "docs/thvd1450dr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "THVD1450DR",
      "kind": "packaging"
    },
    {
      "mpn": "THVD1450DRD",
      "kind": "packaging"
    },
    {
      "mpn": "THVD1450DRDGKR",
      "kind": "packaging"
    },
    {
      "mpn": "THVD1450DRDGK",
      "kind": "packaging"
    },
    {
      "mpn": "THVD1450DRBR",
      "kind": "packaging"
    },
    {
      "mpn": "THVD1450DRBT",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T09:39:56.008Z"
}