SP3078EEN-L

{
  "schema_version": 1,
  "type": "component",
  "slug": "sp3078een-l",
  "title": "SP3078EEN-L",
  "brief": "MaxLinear RS-485 / RS-422 ICs, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "sp3078een-l"
  ],
  "component": {
    "mpn": "SP3078EEN-L",
    "manufacturer": "MaxLinear",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/042573ee015d53494ec858460e806ce6.pdf",
    "parts": {
      "symbol": "sp3078een-l.kicad_sym",
      "footprint": "sp3078een-l.kicad_mod",
      "model_3d": "sp3078een-l-etched.glb",
      "model_3d_plain": "sp3078een-l.glb",
      "model_3d_step": "sp3078een-l-etched.step",
      "model_3d_step_plain": "sp3078een-l.step",
      "lbr": "sp3078een-l.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver Output. CMOS-level logic output of the differential receiver comparing A vs B. VOH ≥ VCC-0.6V at IO=-1mA, VOL ≤ 0.4V at IO=1mA. Tri-stated when /RE is high; failsafe HIGH when bus is open, shorted, or idle-terminated."
      },
      {
        "number": "2",
        "name": "/RE",
        "type": "input",
        "description": "Receiver Enable, active-low. Drive LOW to enable the receiver output RO; drive HIGH to tri-state RO. With /RE=VCC and DE=GND the device enters shutdown (ISHDN ≈ 0.05µA typ). Hot-swap glitch protection ensures no false bus assertion during power-up."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver Enable, active-high. Drive HIGH to enable the differential driver onto A/B; drive LOW to place A and B into a high-impedance state. Hot-swap glitch protected. VIH ≥ 2V, VIL ≤ 0.8V, 100mV typical hysteresis."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver Input. CMOS logic-level input that sets the polarity of the differential A/B outputs when DE is asserted. VIH ≥ 2V, VIL ≤ 0.8V, IIN ±1µA. High on DI drives A high and B low."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0V) for both logic and bus sections."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting RS-485/RS-422 bus pin. Driver output when DE=HIGH; receiver input when DE=LOW. Common-mode range -7V to +12V, ±15kV Air-Gap/HBM and ±8kV Contact ESD protected. 96kΩ minimum receiver input resistance (1/8 unit load)."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting RS-485/RS-422 bus pin. Driver output when DE=HIGH; receiver input when DE=LOW. Common-mode range -7V to +12V, ±15kV Air-Gap/HBM and ±8kV Contact ESD protected. 96kΩ minimum receiver input resistance (1/8 unit load)."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input, +3.3V ±0.3V (absolute max +6V). Typical supply current 0.8mA (1.5mA max) at no load. Bypass locally to GND with a 0.1µF ceramic capacitor."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/042573ee015d53494ec858460e806ce6.pdf",
        "pages": 20,
        "sha256": "860dab706abedb6e",
        "source_tier": "mfr"
      },
      "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": "sp3078een-l.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": "sp3078een-l-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": "5e491e655644861b4717367a27c2fefe4a85e5bde00cef83e78f48f983fa3585",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "MaxLinear",
      "Package": "SOIC-8",
      "Category": "Interface",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sp3078een-l"
  ],
  "discovery_pitch": "SP3078EEN-L (MaxLinear) 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",
    "sp3078een-l.kicad_sym",
    "sp3078een-l.kicad_mod",
    "sp3078een-l.glb",
    "sp3078een-l.step",
    "sp3078een-l-etched.step",
    "sp3078een-l.lbr",
    "docs/hero.png",
    "docs/sp3078een-l-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "SP3078EEN-L",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T07:55:30.382Z"
}