ES3490EEUA

{
  "slug": "es3490eeua",
  "version": "0.1.0",
  "type": "component",
  "description": "ElecSuper RS-485 / RS-422 ICs, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "es3490eeua",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "es3490eeua.kicad_sym",
    "es3490eeua.kicad_mod",
    "es3490eeua.glb",
    "es3490eeua.step",
    "es3490eeua.lbr",
    "docs/hero.png",
    "docs/es3490eeua-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "es3490eeua-hero.glb",
    "es3490eeua-hero.overlay.json",
    "es3490eeua-etched.glb"
  ],
  "component": {
    "mpn": "ES3490EEUA",
    "manufacturer": "ElecSuper",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604443433335603200",
    "parts": {
      "symbol": "es3490eeua.kicad_sym",
      "footprint": "es3490eeua.kicad_mod",
      "model_3d": "es3490eeua-hero.glb",
      "model_3d_plain": "es3490eeua-etched.glb",
      "model_3d_step": "es3490eeua-etched.step",
      "model_3d_step_plain": "es3490eeua.step",
      "lbr": "es3490eeua.lbr"
    },
    "distributor_links": {
      "lcsc": "C41438277"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T06:08:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply pin; the device operates from a 3.0 V to 5.5 V supply, and the absolute maximum VCC is +7 V."
      },
      {
        "number": "2",
        "name": "RO",
        "type": "output",
        "description": "Receiver output: goes high when A-B is at or above +200 mV and low when A-B is at or below -200 mV."
      },
      {
        "number": "3",
        "name": "DI",
        "type": "input",
        "description": "Driver input: a low level drives Y low and Z high, and a high level drives Y high and Z low; DI input range is -0.3 V to VCC+0.3 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; all voltages on the device are referenced to this ground."
      },
      {
        "number": "5",
        "name": "Y",
        "type": "output",
        "description": "Non-inverting driver output (bus side)."
      },
      {
        "number": "6",
        "name": "Z",
        "type": "output",
        "description": "Inverting driver output (bus side)."
      },
      {
        "number": "7",
        "name": "B",
        "type": "input",
        "description": "Receiver inverting input (bus side); bus-side input voltage range is -8 V to +13 V."
      },
      {
        "number": "8",
        "name": "A",
        "type": "input",
        "description": "Receiver non-inverting input (bus side); bus-side input voltage range is -8 V to +13 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: The datasheet gives no separate pin table for the MSOP-8 variant. The pin numbers 1-8 and names come; The Chinese descriptions were translated into English. The pin table does not state a pin type for e"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0396,
        "at": "2026-10-19T06:06:36"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604443433335603200",
        "pages": 11,
        "sha256": "46d9b981d88c32b3",
        "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": "es3490eeua.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "es3490eeua-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5bcfd495d05ca988dfc7cfa04fb9706635150bb64ddfe5eeb998b06910a3e1d0",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}