SN65HVD21MDREP

{
  "slug": "sn65hvd21mdrep",
  "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",
    "interface",
    "sn65hvd21mdrep",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn65hvd21mdrep.kicad_sym",
    "sn65hvd21mdrep.kicad_mod",
    "sn65hvd21mdrep.glb",
    "sn65hvd21mdrep.step",
    "sn65hvd21mdrep.lbr",
    "docs/hero.png",
    "docs/sn65hvd21mdrep-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn65hvd21mdrep-hero.glb",
    "sn65hvd21mdrep-hero.overlay.json"
  ],
  "component": {
    "mpn": "SN65HVD21MDREP",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn65hvd21m-ep",
    "parts": {
      "symbol": "sn65hvd21mdrep.kicad_sym",
      "footprint": "sn65hvd21mdrep.kicad_mod",
      "model_3d": "sn65hvd21mdrep-hero.glb",
      "model_3d_plain": "sn65hvd21mdrep.glb",
      "model_3d_step": "sn65hvd21mdrep-etched.step",
      "model_3d_step_plain": "sn65hvd21mdrep.step",
      "lbr": "sn65hvd21mdrep.lbr"
    },
    "distributor_links": {
      "lcsc": "C2865310",
      "digikey": "296-19496-2-ND",
      "mouser": "595-SN65HVD21MDREP"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T23:24:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-19496-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-SN65HVD21MDREP",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "R",
        "type": "output",
        "description": "Receiver data output: it reflects the state of the A and B bus inputs when RE is low, goes high-impedance when RE is high, and drives a high level within 250 µs after a bus fault (failsafe), with VOH of at least 4 V at IO = −8 mA and VOL of at most 0.4 V at IO = 8 mA."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Active-low receiver output enable: the receiver is enabled when RE is low and disabled (R high-impedance) when RE is high, with VIH of at least 2·VCC and VIL of at most 0.8 V."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable, active high: the A and B outputs are enabled when DE is high and set high-impedance when DE is low, with VIH of at least 2 V (2·VCC) and VIL of at most 0.8 V."
      },
      {
        "number": "4",
        "name": "D",
        "type": "input",
        "description": "Driver data input: when DE is high, a high on D drives A high and B low while a low drives A low and B high, with VIH of at least 2·VCC, VIL of at most 0.8 V, and input current limited to ±100 µA."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Network ground terminal, the reference for all voltages on the device except the differential bus I/O voltage (absolute maximum rating −0.5 V to 7 V on VCC relative to this terminal)."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting driver output and receiver input of the differential bus port, rated for −20 V to 25 V common-mode voltage in recommended operation and −27 V to 27 V absolute maximum with 16 kV HBM ESD protection."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting driver output and receiver input of the differential bus port, rated for −20 V to 25 V common-mode voltage in recommended operation and −27 V to 27 V absolute maximum with 16 kV HBM ESD protection."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Single 5-V supply input, with recommended operating range of 4.5 V to 5.5 V (nominal 5 V) and an absolute maximum of 7 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "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": [
          "extractor flagged: Pin numbers were assigned from the pin-assignment diagram on page 12 (D or P package, top view), whi; The MPN SN65HVD21MDREP is the D (SOIC-8) variant per the product selection guide and package options; Pin types A and B are classed as bidirectional because they are both driver outputs and receiver inp"
        ],
        "pages_sent": 22,
        "cost_usd": 0.0892,
        "at": "2026-10-08T23:23:02"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn65hvd21m-ep",
        "pages": 22,
        "sha256": "d17ec4ff266f5c93",
        "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": [
      {
        "file": "sn65hvd21mdrep.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": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn65hvd21mdrep-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": "47b01c10addaec4d3bdf0000ba8db91f00f89b2516ba22bba381474d17ee7f34",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}