MAX3485EIM

{
  "schema_version": 1,
  "type": "component",
  "slug": "max3485eim",
  "title": "MAX3485EIM",
  "brief": "HGSEMI RS-485 / RS-422 ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "max3485eim"
  ],
  "component": {
    "mpn": "MAX3485EIM",
    "manufacturer": "HGSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/58e191425d18b57e366060381339661e.pdf",
    "parts": {
      "symbol": "max3485eim.kicad_sym",
      "footprint": "max3485eim.kicad_mod",
      "model_3d": "max3485eim-etched.glb",
      "model_3d_plain": "max3485eim.glb",
      "model_3d_step": "max3485eim-etched.step",
      "model_3d_step_plain": "max3485eim.step",
      "lbr": "max3485eim.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver output. When /RE is low, RO is high if (A-B) >= +200 mV and low if (A-B) <= -200 mV. High-impedance when /RE is high or the device is in shutdown."
      },
      {
        "number": "2",
        "name": "/RE",
        "type": "input",
        "description": "Receiver output enable, active low. Low enables RO; high tri-states RO. When /RE is high and DE is low, the device enters low-power shutdown mode."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable, active high. High enables the differential driver on A/B; low tri-states the driver. When /RE is high and DE is low the device enters low-power shutdown mode."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input. With DE high, a low on DI forces A low and B high; a high on DI forces A high and B low. VIH >= 2.0 V, VIL <= 0.8 V (3.3 V logic)."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device. Connect to the common system ground."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting RS-485 bus pin: receiver non-inverting input and driver non-inverting output. Absolute input range -7 V to +13 V; ±15 kV HBM ESD."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting RS-485 bus pin: receiver inverting input and driver inverting output. Absolute input range -7 V to +13 V; ±15 kV HBM ESD."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin. Operating range 3.0 V to 3.6 V (nominal 3.3 V). Bypass locally with a 0.1 µF ceramic capacitor to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/58e191425d18b57e366060381339661e.pdf",
        "pages": 17,
        "sha256": "2c206ef20fa97d7e",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "max3485eim.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "max3485eim-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "12ad7388ca1280dde93f00e7925f0f1bf1396bd6187b20f81576db43df28e2fe",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOP-8",
      "Category": "Interface",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "max3485eim"
  ],
  "discovery_pitch": "MAX3485EIM (HGSEMI) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "max3485eim.kicad_sym",
    "max3485eim.kicad_mod",
    "max3485eim.glb",
    "max3485eim.step",
    "max3485eim-etched.step",
    "max3485eim.lbr",
    "docs/hero.png",
    "docs/max3485eim-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "MAX3485EIM/TR",
      "kind": "packaging"
    },
    {
      "mpn": "MAX3485ECM/TR",
      "kind": "unknown"
    },
    {
      "mpn": "MAX3485EIN",
      "kind": "unknown"
    },
    {
      "mpn": "MAX3485ECN",
      "kind": "unknown"
    },
    {
      "mpn": "MAX3485EIMM/TR",
      "kind": "packaging"
    },
    {
      "mpn": "MAX3485ECMM/TR",
      "kind": "unknown"
    },
    {
      "mpn": "MAX3485EIDQ/TR",
      "kind": "unknown"
    },
    {
      "mpn": "MAX3485EIDQ3/TR",
      "kind": "unknown"
    },
    {
      "mpn": "MAX3485ECDQ/TR",
      "kind": "unknown"
    },
    {
      "mpn": "MAX3485ECDQ3/TR",
      "kind": "unknown"
    },
    {
      "mpn": "MAX3485EIM8/TR",
      "kind": "packaging"
    },
    {
      "mpn": "MAX3485ECM8/TR",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-28T18:30:40.978Z"
}