SP3221EEA-L

{
  "slug": "sp3221eea-l",
  "version": "0.1.0",
  "type": "component",
  "description": "MaxLinear RS232 ICs, SSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip",
    "sp3221eea-l",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sp3221eea-l.kicad_sym",
    "sp3221eea-l.kicad_mod",
    "sp3221eea-l.glb",
    "sp3221eea-l.step",
    "sp3221eea-l.lbr",
    "docs/hero.png",
    "docs/sp3221eea-l-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sp3221eea-l-hero.glb",
    "sp3221eea-l-hero.overlay.json",
    "sp3221eea-l-etched.glb"
  ],
  "component": {
    "mpn": "SP3221EEA-L",
    "manufacturer": "MaxLinear",
    "package": "SSOP-16",
    "pin_count": 16,
    "category": "Communication Interface Chip",
    "subcategory": "RS232 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7ebd8a538327efe4df46f2d61d1bc8b0.pdf",
    "parts": {
      "symbol": "sp3221eea-l.kicad_sym",
      "footprint": "sp3221eea-l.kicad_mod",
      "model_3d": "sp3221eea-l-hero.glb",
      "model_3d_plain": "sp3221eea-l-etched.glb",
      "model_3d_step": "sp3221eea-l-etched.step",
      "model_3d_step_plain": "sp3221eea-l.step",
      "lbr": "sp3221eea-l.lbr"
    },
    "distributor_links": {
      "lcsc": "C6495259",
      "digikey": "SP3221EEA-L-ND",
      "mouser": "701-SP3221EEA-L"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T03:41:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "SP3221EEA-L-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "701-SP3221EEA-L",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Receiver enable: logic LOW for normal operation, logic HIGH disables the receiver output into a high-Z state."
      },
      {
        "number": "2",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of the voltage doubler charge-pump capacitor."
      },
      {
        "number": "3",
        "name": "V+",
        "type": "power_out",
        "description": "Regulated +5.5V output generated by the charge pump (absolute maximum +7.0V)."
      },
      {
        "number": "4",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of the voltage doubler charge-pump capacitor."
      },
      {
        "number": "5",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of the inverting charge-pump capacitor."
      },
      {
        "number": "6",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of the inverting charge-pump capacitor."
      },
      {
        "number": "7",
        "name": "V-",
        "type": "power_out",
        "description": "Regulated -5.5V output generated by the charge pump (absolute maximum -7.0V)."
      },
      {
        "number": "8",
        "name": "R1IN",
        "type": "input",
        "description": "RS-232 receiver input, ±15V input range with internal 5kΩ pull-down to ground, 25V absolute maximum."
      },
      {
        "number": "9",
        "name": "R1OUT",
        "type": "output",
        "description": "TTL/CMOS receiver output, high-Z when EN is HIGH."
      },
      {
        "number": "10",
        "name": "STATUS",
        "type": "output",
        "description": "TTL/CMOS output indicating receiver signal activity."
      },
      {
        "number": "11",
        "name": "T1IN",
        "type": "input",
        "description": "TTL/CMOS driver input; unused input should be connected to GND or VCC."
      },
      {
        "number": "12",
        "name": "ONLINE",
        "type": "input",
        "description": "Apply logic HIGH to override AUTO ON-LINE circuitry and keep the driver active (SHUTDOWN must also be HIGH)."
      },
      {
        "number": "13",
        "name": "T1OUT",
        "type": "output",
        "description": "RS-232 driver output with ±5.0V minimum swing into 3kΩ, short-circuit protected to ground."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "15",
        "name": "VCC",
        "type": "power_in",
        "description": "+3.0V to +5.5V supply voltage."
      },
      {
        "number": "16",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Apply logic LOW to shut down drivers and charge pump, overriding all AUTO ON-LINE circuitry and ONLINE."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin-diagram text on page 1 is garbled by extraction, so pin numbers were taken from the page 7 p"
        ],
        "pages_sent": 20,
        "cost_usd": 0.1498,
        "at": "2026-10-27T03:40:36"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/7ebd8a538327efe4df46f2d61d1bc8b0.pdf",
        "pages": 20,
        "sha256": "182ec9acd2ab0c45",
        "source_tier": "mfr"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "sp3221eea-l.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          6.2,
          2.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d0e11e46aeca5dbaa5c4bb538f3f4899761267cabdeba6486325ae9e979c03ef",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sp3221eea-l-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          6.2,
          2.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "964ad4a6bba757061c0a727dc35130f8c4b21f418ab8209f62630a02a90536db",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}