SN65HVD20DR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn65hvd20dr",
  "title": "SN65HVD20DR",
  "brief": "Texas Instruments RS-485 / RS-422 ICs, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "sn65hvd20dr"
  ],
  "component": {
    "mpn": "SN65HVD20DR",
    "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/sn65hvd20.pdf",
    "parts": {
      "symbol": "sn65hvd20dr.kicad_sym",
      "footprint": "sn65hvd20dr.kicad_mod",
      "model_3d": "sn65hvd20dr-etched.glb",
      "model_3d_plain": "sn65hvd20dr.glb",
      "model_3d_step": "sn65hvd20dr-etched.step",
      "model_3d_step_plain": "sn65hvd20dr.step",
      "lbr": "sn65hvd20dr.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "R",
        "type": "output",
        "description": "Receive data output. Digital CMOS output that reflects the state of the differential receiver comparing bus lines A and B."
      },
      {
        "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 a high-impedance state."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver enable, active high. Drive high to enable the differential driver outputs A and B; drive low to place the driver in a high-impedance state."
      },
      {
        "number": "4",
        "name": "D",
        "type": "input",
        "description": "Driver data input. Digital CMOS input; the logic level here determines the differential state driven on the A/B bus when DE is high."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Local device ground / reference potential."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "RS-485 differential bus line A (non-inverting). Driver output or receiver input, complementary to B. Extended common-mode range -20 V to 25 V."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "RS-485 differential bus line B (inverting). Driver output or receiver input, complementary to A. Extended common-mode range -20 V to 25 V."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input, 4.5 V to 5.5 V. Bypass locally with a 100 nF ceramic capacitor to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn65hvd20.pdf",
        "pages": 37,
        "sha256": "7a91efb110506aa4",
        "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": "sn65hvd20dr.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": "sn65hvd20dr-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": "925646e7621ac2ad45f7ffcc16d4d5d9fcc4efc97c659de076bf7edeeeba26f0",
        "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"
    }
  },
  "variants": [
    {
      "mpn": "SN65HVD20DR",
      "kind": "packaging"
    },
    {
      "mpn": "SN65HVD20DRD",
      "kind": "packaging"
    },
    {
      "mpn": "SN65HVD20DRP",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sn65hvd20dr"
  ],
  "discovery_pitch": "SN65HVD20DR (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",
    "sn65hvd20dr.kicad_sym",
    "sn65hvd20dr.kicad_mod",
    "sn65hvd20dr.glb",
    "sn65hvd20dr.step",
    "sn65hvd20dr.lbr",
    "docs/hero.png",
    "docs/sn65hvd20dr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T06:25:46.304Z"
}