ISO7421DR

{
  "slug": "iso7421dr",
  "version": "0.1.0",
  "type": "component",
  "description": "TI(德州仪器) Digital Isolators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "signal isolation devices",
    "iso7421dr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "iso7421dr.kicad_sym",
    "iso7421dr.kicad_mod",
    "iso7421dr.glb",
    "iso7421dr.step",
    "iso7421dr.lbr",
    "docs/hero.png",
    "docs/iso7421dr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "iso7421dr-hero.glb",
    "iso7421dr-hero.overlay.json",
    "iso7421dr-etched.glb"
  ],
  "component": {
    "mpn": "ISO7421DR",
    "manufacturer": "TI(德州仪器)",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Signal Isolation Devices",
    "subcategory": "Digital Isolators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/iso7420m",
    "parts": {
      "symbol": "iso7421dr.kicad_sym",
      "footprint": "iso7421dr.kicad_mod",
      "model_3d": "iso7421dr-hero.glb",
      "model_3d_plain": "iso7421dr-etched.glb",
      "model_3d_step": "iso7421dr-etched.step",
      "model_3d_step_plain": "iso7421dr.step",
      "lbr": "iso7421dr.lbr"
    },
    "distributor_links": {
      "lcsc": "C515253",
      "digikey": "296-38564-2-ND",
      "mouser": "595-ISO7421DR"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T17:15:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-38564-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-ISO7421DR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC1",
        "type": "power_in",
        "description": "Power supply for side 1 (input channels), specified for 3.3-V operation from 3.15 V to 3.45 V (limits from the recommended operating conditions on page 7)."
      },
      {
        "number": "2",
        "name": "OUTA",
        "type": "output",
        "description": "Output of channel A; recommended output current is -4 mA for high level and 4 mA for low level."
      },
      {
        "number": "3",
        "name": "INB",
        "type": "input",
        "description": "Input of channel B with TTL thresholds, requiring VIH of at least 2 V and VIL of at most 0.8 V."
      },
      {
        "number": "4",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground connection for VCC1."
      },
      {
        "number": "5",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground connection for VCC2."
      },
      {
        "number": "6",
        "name": "OUTB",
        "type": "output",
        "description": "Output of channel B; recommended output current is -4 mA for high level and 4 mA for low level."
      },
      {
        "number": "7",
        "name": "INA",
        "type": "input",
        "description": "Input of channel A with TTL thresholds, requiring VIH of at least 2 V and VIL of at most 0.8 V."
      },
      {
        "number": "8",
        "name": "VCC2",
        "type": "power_in",
        "description": "Power supply for side 2 (output channels), specified for 5-V operation from 4.75 V to 5.25 V (limits from page 7)."
      }
    ],
    "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: The page 6 pin diagrams are labeled ambiguously for ISO7420 vs ISO7421 and the two drawings disagree; The VCC supply limits quoted in the descriptions are from the Recommended Operating Conditions table; The ISO7421DR is listed in the orderable addendum as SOIC (D), 8-pin, 2500 per reel, so the D (SOIC-"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0584,
        "at": "2026-10-20T17:13:19"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/iso7420m",
        "pages": 30,
        "sha256": "134345938abaca3b",
        "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": "iso7421dr.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": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "iso7421dr-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": "cb45bc42bf23f0173a0df815445a7f702d238c3590c4e868cb5a3ddaf65ddee6",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}