SN65HVD11 RS-485 Transceiver

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn65hvd11",
  "title": "SN65HVD11 RS-485 Transceiver",
  "brief": "3.3 V half-duplex RS-485 transceiver with slew-rate limiting for lower emissions.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "rs-485",
    "transceiver",
    "interface",
    "3.3v",
    "slew-limited",
    "ti",
    "soic-8"
  ],
  "component": {
    "mpn": "SN65HVD11",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 Transceiver",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn65hvd11.pdf",
    "parts": {
      "symbol": "sn65hvd11.kicad_sym",
      "footprint": "sn65hvd11.kicad_mod",
      "model_3d": "sn65hvd11-etched.glb",
      "model_3d_plain": "sn65hvd11.glb",
      "model_3d_step": "sn65hvd11-etched.step",
      "model_3d_step_plain": "sn65hvd11.step",
      "lbr": "sn65hvd11.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "R",
        "type": "output",
        "description": "Receive data output. Digital output presenting the recovered logic level from the differential A/B bus inputs. High-impedance when RE is high (receiver disabled)."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Active-low receiver enable. Drive low to enable the receiver output R; drive high to place R in high-impedance and (together with DE low) enter low-current standby mode (typ 1 uA)."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Active-high driver enable. Drive high to enable the differential bus driver on A/B; drive low to place the driver outputs in high-impedance."
      },
      {
        "number": "4",
        "name": "D",
        "type": "input",
        "description": "Driver data input. TTL/CMOS-compatible logic input whose state is transmitted to the differential A/B bus when DE is asserted high."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Local device ground / reference potential for logic and bus signals."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting RS-485 differential bus I/O. Driver output or receiver input, complementary to B. Withstands -7 V to 12 V common-mode; ESD protected to +/-16 kV HBM."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting RS-485 differential bus I/O. Driver output or receiver input, complementary to A. Withstands -7 V to 12 V common-mode; ESD protected to +/-16 kV HBM."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input, 3 V to 3.6 V (3.3-V nominal). Bypass locally with a decoupling capacitor to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn65hvd11.pdf",
        "pages": 37,
        "sha256": "c180625a50ecb754",
        "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": "sn65hvd11.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn65hvd11-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "98f8d7cb55efbf04a0a3d3cea079cd795c55d97b099093cbc016bfb2bb8edc93",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Half-duplex RS-485 transceiver",
      "Supply voltage": "3.0 V to 3.6 V",
      "Data rate": "Up to 10 Mbps",
      "Driver": "Slew-rate limited",
      "Bus loading": "Up to 256 nodes",
      "Enables": "Separate driver and receiver",
      "Operating temperature": "-40 C to 85 C"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "RS-485 transceiver",
    "differential bus",
    "Modbus",
    "3.3V 485",
    "industrial serial"
  ],
  "discovery_pitch": "A 3.3 V RS-485 transceiver with slew-rate limiting for robust multidrop serial with reduced EMI over long cables.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn65hvd11.kicad_sym",
    "sn65hvd11.kicad_mod",
    "sn65hvd11.glb",
    "sn65hvd11.step",
    "sn65hvd11.lbr",
    "docs/hero.png",
    "docs/sn65hvd11-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn65hvd11-etched.step"
  ],
  "variants": [
    {
      "mpn": "SN65HVD11D",
      "kind": "unknown"
    },
    {
      "mpn": "SN65HVD11DR",
      "kind": "unknown"
    },
    {
      "mpn": "SN65HVD11P",
      "kind": "unknown"
    }
  ]
}