SL3490EESA

{
  "schema_version": 1,
  "type": "component",
  "slug": "sl3490eesa",
  "title": "SL3490EESA",
  "brief": "Slkor SLKORMICRO Elec RS-485 / RS-422 ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "sl3490eesa"
  ],
  "component": {
    "mpn": "SL3490EESA",
    "manufacturer": "Slkor SLKORMICRO Elec",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603061139001790464",
    "parts": {
      "symbol": "sl3490eesa.kicad_sym",
      "footprint": "sl3490eesa.kicad_mod",
      "model_3d": "sl3490eesa-etched.glb",
      "model_3d_plain": "sl3490eesa.glb",
      "model_3d_step": "sl3490eesa-etched.step",
      "model_3d_step_plain": "sl3490eesa.step",
      "lbr": "sl3490eesa.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply. Operating range 3.0V to 5.5V; absolute maximum +7V. Decouple to GND with a bypass capacitor near the pin."
      },
      {
        "number": "2",
        "name": "RO",
        "type": "output",
        "description": "Receiver output. Outputs high when (A-B) ≥ +200mV and low when (A-B) ≤ -200mV. VOH ≥ VCC-1.5V at IOUT=-4mA, VOL ≤ 0.4V at IOUT=+4mA. High under open/short (failsafe)."
      },
      {
        "number": "3",
        "name": "DI",
        "type": "input",
        "description": "Driver input. A low on DI forces Y low and Z high; a high on DI forces Y high and Z low. VIH ≥ 2.0V, VIL ≤ 0.8V, input current ±2µA."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device. All voltages are referenced to this pin."
      },
      {
        "number": "5",
        "name": "Y",
        "type": "output",
        "description": "Non-inverting driver output to RS-485/RS-422 bus. Differential driver output VOD ≥ 1.5V with RL=54Ω or 100Ω; short-circuit current limited to ±250mA max. ±15kV HBM ESD protection."
      },
      {
        "number": "6",
        "name": "Z",
        "type": "output",
        "description": "Inverting driver output to RS-485/RS-422 bus. Differential driver output VOD ≥ 1.5V with RL=54Ω or 100Ω; short-circuit current limited to ±250mA max. ±15kV HBM ESD protection."
      },
      {
        "number": "7",
        "name": "B",
        "type": "input",
        "description": "Inverting receiver input from RS-485/RS-422 bus. Common-mode range -7V to +12V; receiver input impedance 96kΩ (1/8 unit load). ±15kV HBM ESD protection."
      },
      {
        "number": "8",
        "name": "A",
        "type": "input",
        "description": "Non-inverting receiver input from RS-485/RS-422 bus. Common-mode range -7V to +12V; receiver input impedance 96kΩ (1/8 unit load). ±15kV HBM ESD protection."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603061139001790464",
        "pages": null,
        "sha256": "ca101c925cc431ab",
        "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": "sl3490eesa.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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sl3490eesa-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": "421674462051ee06b7b24a988ee925df77e2037634b15cb171e0ecf9dbfff0a3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Slkor SLKORMICRO Elec",
      "Package": "SOP-8",
      "Category": "Interface",
      "Pins": "8"
    }
  },
  "variants": [
    {
      "mpn": "SL3490EESA",
      "kind": "packaging"
    },
    {
      "mpn": "SL3490EEPA",
      "kind": "unknown"
    },
    {
      "mpn": "SL3490EEUA",
      "kind": "unknown"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sl3490eesa"
  ],
  "discovery_pitch": "SL3490EESA (Slkor SLKORMICRO Elec) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sl3490eesa.kicad_sym",
    "sl3490eesa.kicad_mod",
    "sl3490eesa.glb",
    "sl3490eesa.step",
    "sl3490eesa.lbr",
    "docs/hero.png",
    "docs/sl3490eesa-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T06:09:51.142Z"
}