SP3243EBEA-L

{
  "schema_version": 1,
  "type": "component",
  "slug": "sp3243ebea-l",
  "title": "SP3243EBEA-L",
  "brief": "MaxLinear RS232 ICs, SSOP-28-208mil. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "sp3243ebea-l"
  ],
  "component": {
    "mpn": "SP3243EBEA-L",
    "manufacturer": "MaxLinear",
    "package": "SSOP-28-208mil",
    "pin_count": 28,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/112473f2cea64e8abfef2d6b0cd953ef.pdf",
    "parts": {
      "symbol": "sp3243ebea-l.kicad_sym",
      "footprint": "sp3243ebea-l.kicad_mod",
      "model_3d": "sp3243ebea-l-etched.glb",
      "model_3d_plain": "sp3243ebea-l.glb",
      "model_3d_step": "sp3243ebea-l-etched.step",
      "model_3d_step_plain": "sp3243ebea-l.step",
      "lbr": "sp3243ebea-l.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of the inverting charge-pump flying capacitor C2 (0.1µF, 16V min)."
      },
      {
        "number": "2",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of the inverting charge-pump flying capacitor C2 (0.1µF, 16V min)."
      },
      {
        "number": "3",
        "name": "V-",
        "type": "power_out",
        "description": "Regulated -5.5V output generated by the internal charge pump. Bypass to GND with 0.1µF capacitor C4."
      },
      {
        "number": "4",
        "name": "R1IN",
        "type": "input",
        "description": "RS-232 receiver 1 input. Accepts ±15V RS-232 line levels; internal 5kΩ pulldown commits output HIGH when open."
      },
      {
        "number": "5",
        "name": "R2IN",
        "type": "input",
        "description": "RS-232 receiver 2 input. Feeds the always-active non-inverting receiver R2OUT (active in shutdown) as well as the standard R2OUT receiver."
      },
      {
        "number": "6",
        "name": "R3IN",
        "type": "input",
        "description": "RS-232 receiver 3 input. Accepts ±15V RS-232 line levels; internal 5kΩ pulldown."
      },
      {
        "number": "7",
        "name": "R4IN",
        "type": "input",
        "description": "RS-232 receiver 4 input. Accepts ±15V RS-232 line levels; internal 5kΩ pulldown."
      },
      {
        "number": "8",
        "name": "R5IN",
        "type": "input",
        "description": "RS-232 receiver 5 input. Accepts ±15V RS-232 line levels; internal 5kΩ pulldown."
      },
      {
        "number": "9",
        "name": "T1OUT",
        "type": "output",
        "description": "RS-232 driver 1 output. Delivers ±5.4V typical output swing into a 3kΩ load."
      },
      {
        "number": "10",
        "name": "T2OUT",
        "type": "output",
        "description": "RS-232 driver 2 output. Delivers ±5.4V typical output swing into a 3kΩ load."
      },
      {
        "number": "11",
        "name": "T3OUT",
        "type": "output",
        "description": "RS-232 driver 3 output. Delivers ±5.4V typical output swing into a 3kΩ load."
      },
      {
        "number": "12",
        "name": "T3IN",
        "type": "input",
        "description": "TTL/CMOS driver 3 input. Logic threshold 0.8V LOW / 2.4V HIGH. Unused driver inputs should be tied to GND or VCC."
      },
      {
        "number": "13",
        "name": "T2IN",
        "type": "input",
        "description": "TTL/CMOS driver 2 input. Logic threshold 0.8V LOW / 2.4V HIGH."
      },
      {
        "number": "14",
        "name": "T1IN",
        "type": "input",
        "description": "TTL/CMOS driver 1 input. Logic threshold 0.8V LOW / 2.4V HIGH."
      },
      {
        "number": "15",
        "name": "R5OUT",
        "type": "output",
        "description": "TTL/CMOS receiver 5 output. High-Z in shutdown or when AUTO ON-LINE is disabled."
      },
      {
        "number": "16",
        "name": "R4OUT",
        "type": "output",
        "description": "TTL/CMOS receiver 4 output. High-Z in shutdown or when AUTO ON-LINE is disabled."
      },
      {
        "number": "17",
        "name": "R3OUT",
        "type": "output",
        "description": "TTL/CMOS receiver 3 output. High-Z in shutdown or when AUTO ON-LINE is disabled."
      },
      {
        "number": "18",
        "name": "R2OUT",
        "type": "output",
        "description": "TTL/CMOS receiver 2 output (inverting standard receiver). High-Z in shutdown or when AUTO ON-LINE is disabled."
      },
      {
        "number": "19",
        "name": "R1OUT",
        "type": "output",
        "description": "TTL/CMOS receiver 1 output. High-Z in shutdown or when AUTO ON-LINE is disabled."
      },
      {
        "number": "20",
        "name": "R2OUT_B",
        "type": "output",
        "description": "Non-inverting receiver-2 output; remains active during shutdown to monitor an external Ring Indicate signal."
      },
      {
        "number": "21",
        "name": "STATUS",
        "type": "output",
        "description": "TTL/CMOS output indicating the AUTO ON-LINE / shutdown status of the transceiver. VOL ≤ 0.4V @ IOUT=1.6mA; VOH ≥ VCC-0.6V @ IOUT=-1.0mA."
      },
      {
        "number": "22",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Active-LOW shutdown input. Logic LOW shuts down drivers and charge pump, overriding AUTO ON-LINE and ONLINE. Refer to Table 2 truth table."
      },
      {
        "number": "23",
        "name": "ONLINE",
        "type": "input",
        "description": "Active-LOW AUTO ON-LINE enable. Apply logic HIGH to override AUTO ON-LINE circuitry and force drivers active (SHUTDOWN must also be HIGH)."
      },
      {
        "number": "24",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of the voltage-doubler charge-pump flying capacitor C1 (0.1µF, 16V min)."
      },
      {
        "number": "25",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference."
      },
      {
        "number": "26",
        "name": "VCC",
        "type": "power_in",
        "description": "+3.0V to +5.5V supply input. Bypass to GND with 0.1µF capacitor C5."
      },
      {
        "number": "27",
        "name": "V+",
        "type": "power_out",
        "description": "Regulated +5.5V output generated by the internal charge pump. Bypass to GND with 0.1µF capacitor C3."
      },
      {
        "number": "28",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of the voltage-doubler charge-pump flying capacitor C1 (0.1µF, 16V min)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/112473f2cea64e8abfef2d6b0cd953ef.pdf",
        "pages": 24,
        "sha256": "b138bf5034e0cd89",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 28,
        "described": 28,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sp3243ebea-l.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          10.2,
          2.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7aa76979ae41da44bded1ed74115012868f2f3f5a757faf32bb9df4f92c1e313",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sp3243ebea-l-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          10.2,
          2.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "af72d3a84955bf011fa11e5f460d51fe58748cc971d14e55e6bd962f248cdd3a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "MaxLinear",
      "Package": "SSOP-28-208mil",
      "Category": "Interface",
      "Pins": "28"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sp3243ebea-l"
  ],
  "discovery_pitch": "SP3243EBEA-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",
    "sp3243ebea-l.kicad_sym",
    "sp3243ebea-l.kicad_mod",
    "sp3243ebea-l.glb",
    "sp3243ebea-l.step",
    "sp3243ebea-l.lbr",
    "docs/hero.png",
    "docs/sp3243ebea-l-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sp3243ebea-l-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "SP3243EBEA-L",
      "kind": "packaging"
    },
    {
      "mpn": "SP3243EBEA-LEBCA",
      "kind": "packaging"
    },
    {
      "mpn": "SP3243EBEA-LEBCA-L",
      "kind": "packaging"
    },
    {
      "mpn": "SP3243EBEA-LEBUA",
      "kind": "packaging"
    },
    {
      "mpn": "SP3243EBEA-LEBUA-L",
      "kind": "packaging"
    },
    {
      "mpn": "SP3243EBEA-LEUCR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T07:58:15.671Z"
}