ISO7821LLDWW

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  "type": "component",
  "slug": "iso7821lldww",
  "title": "ISO7821LLDWW",
  "brief": "Texas Instruments Isolated LVDS Buffers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "ISO7821LLDWW",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Signal Isolation Devices",
    "subcategory": "Isolated LVDS Buffers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/iso7821ll",
    "parts": {
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      "model_3d_step_plain": "iso7821lldww.step",
      "lbr": "iso7821lldww.lbr"
    },
    "distributor_links": {
      "lcsc": "C2878481",
      "digikey": "296-48873-ND",
      "mouser": "595-ISO7821LLDWW"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T17:40:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-48873-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-ISO7821LLDWW",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC1",
        "type": "power_in",
        "description": "Power supply for side 1 (VCC1) of the isolation barrier."
      },
      {
        "number": "2",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground connection for VCC1 (side 1)."
      },
      {
        "number": "3",
        "name": "INA+",
        "type": "input",
        "description": "Positive differential input, channel A."
      },
      {
        "number": "4",
        "name": "INA-",
        "type": "input",
        "description": "Negative differential input, channel A."
      },
      {
        "number": "5",
        "name": "OUTB-",
        "type": "output",
        "description": "Negative differential output, channel B."
      },
      {
        "number": "6",
        "name": "OUTB+",
        "type": "output",
        "description": "Positive differential output, channel B."
      },
      {
        "number": "7",
        "name": "EN1",
        "type": "input",
        "description": "Output enable 1: side-1 output pins are enabled when EN1 is high or open and are high impedance when EN1 is low."
      },
      {
        "number": "8",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground connection for VCC1 (side 1)."
      },
      {
        "number": "9",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground connection for VCC2 (side 2)."
      },
      {
        "number": "10",
        "name": "EN2",
        "type": "input",
        "description": "Output enable 2: side-2 output pins are enabled when EN2 is high or open and are high impedance when EN2 is low."
      },
      {
        "number": "11",
        "name": "INB+",
        "type": "input",
        "description": "Positive differential input, channel B."
      },
      {
        "number": "12",
        "name": "INB-",
        "type": "input",
        "description": "Negative differential input, channel B."
      },
      {
        "number": "13",
        "name": "OUTA-",
        "type": "output",
        "description": "Negative differential output, channel A."
      },
      {
        "number": "14",
        "name": "OUTA+",
        "type": "output",
        "description": "Positive differential output, channel A."
      },
      {
        "number": "15",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground connection for VCC2 (side 2)."
      },
      {
        "number": "16",
        "name": "VCC2",
        "type": "power_in",
        "description": "Power supply for side 2 (VCC2) of the isolation barrier."
      }
    ],
    "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: Package variant: ISO7821LLDWW is the SOIC DWW (16-pin, ultra-wide body) variant per the Package Opti; Pin-diagram captions are garbled in the extracted text. The ISO7821LL mapping was taken from the Pin; Pins 7 and 11 of ISO7821LL differ from ISO7820LL (pin 7 is NC on ISO7820LL, and INB+/OUTB+ are swapp"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0551,
        "at": "2026-10-11T17:40:18"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/iso7821ll",
        "pages": 40,
        "sha256": "2d74a1d0aa8124a6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "iso7821lldww-etched.step",
        "role": "eda",
        "up": "Z",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "75b2c24d0bd493b686c113641df1005e779749886efa814d8ebac3aa8e78c879",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-16",
      "Category": "Signal Isolation Devices",
      "Pins": "16"
    }
  },
  "variants": [],
  "sections": [
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    "readme",
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  "discovery_triggers": [
    "iso7821lldww"
  ],
  "discovery_pitch": "ISO7821LLDWW (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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}