ST3241EBPR

{
  "slug": "st3241ebpr",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics RS232 ICs, SSOP-28-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "st3241ebpr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "st3241ebpr.kicad_sym",
    "st3241ebpr.kicad_mod",
    "st3241ebpr.glb",
    "st3241ebpr.step",
    "st3241ebpr.lbr",
    "docs/hero.png",
    "docs/st3241ebpr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "st3241ebpr-hero.glb",
    "st3241ebpr-hero.overlay.json"
  ],
  "component": {
    "mpn": "ST3241EBPR",
    "manufacturer": "STMicroelectronics",
    "package": "SSOP-28-208mil",
    "pin_count": 28,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588902855277760512",
    "parts": {
      "symbol": "st3241ebpr.kicad_sym",
      "footprint": "st3241ebpr.kicad_mod",
      "model_3d": "st3241ebpr-hero.glb",
      "model_3d_plain": "st3241ebpr.glb",
      "model_3d_step": "st3241ebpr-etched.step",
      "model_3d_step_plain": "st3241ebpr.step",
      "lbr": "st3241ebpr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2672031",
      "digikey": "497-6997-2-ND",
      "mouser": "511-ST3241EBP"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T19:32:43Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-6997-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-ST3241EBP",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of the inverting charge pump capacitor (C2 is connected between pins 1 and 2, specified as 0.1 µF to 0.47 µF in the application table depending on VCC)."
      },
      {
        "number": "2",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of the inverting charge pump capacitor."
      },
      {
        "number": "3",
        "name": "V-",
        "type": "power_out",
        "description": "-5.5 V output generated by the charge pump, with an extra negative voltage limit of 7 V magnitude (absolute maximum)."
      },
      {
        "number": "4",
        "name": "R1IN",
        "type": "input",
        "description": "First RS-232 receiver input, with an operating input voltage range of -25 V to 25 V."
      },
      {
        "number": "5",
        "name": "R2IN",
        "type": "input",
        "description": "Second RS-232 receiver input, with an operating input voltage range of -25 V to 25 V."
      },
      {
        "number": "6",
        "name": "R3IN",
        "type": "input",
        "description": "Third RS-232 receiver input, with an operating input voltage range of -25 V to 25 V."
      },
      {
        "number": "7",
        "name": "R4IN",
        "type": "input",
        "description": "Fourth RS-232 receiver input, with an operating input voltage range of -25 V to 25 V."
      },
      {
        "number": "8",
        "name": "R5IN",
        "type": "input",
        "description": "Fifth RS-232 receiver input, with an operating input voltage range of -25 V to 25 V."
      },
      {
        "number": "9",
        "name": "T1OUT",
        "type": "output",
        "description": "First RS-232 transmitter output, with a voltage swing of ±5 V minimum into a 3 kΩ load and short-circuit protection (one output at a time)."
      },
      {
        "number": "10",
        "name": "T2OUT",
        "type": "output",
        "description": "Second RS-232 transmitter output, with a voltage swing of ±5 V minimum into a 3 kΩ load and short-circuit protection (one output at a time)."
      },
      {
        "number": "11",
        "name": "T3OUT",
        "type": "output",
        "description": "Third RS-232 transmitter output, with a voltage swing of ±5 V minimum into a 3 kΩ load and short-circuit protection (one output at a time)."
      },
      {
        "number": "12",
        "name": "T3IN",
        "type": "input",
        "description": "Third transmitter logic input, with a maximum input voltage of 6 V (absolute maximum) and a logic threshold high of 2 V at VCC = 3.3 V."
      },
      {
        "number": "13",
        "name": "T2IN",
        "type": "input",
        "description": "Second transmitter logic input, with a maximum input voltage of 6 V (absolute maximum) and a logic threshold high of 2 V at VCC = 3.3 V."
      },
      {
        "number": "14",
        "name": "T1IN",
        "type": "input",
        "description": "First transmitter logic input, with a maximum input voltage of 6 V (absolute maximum) and a logic threshold high of 2 V at VCC = 3.3 V."
      },
      {
        "number": "15",
        "name": "R5OUT",
        "type": "output",
        "description": "Fifth receiver logic output, with output voltage high of VCC - 0.1 V minimum at IOUT = -1 mA."
      },
      {
        "number": "16",
        "name": "R4OUT",
        "type": "output",
        "description": "Fourth receiver logic output, with output voltage high of VCC - 0.1 V minimum at IOUT = -1 mA."
      },
      {
        "number": "17",
        "name": "R3OUT",
        "type": "output",
        "description": "Third receiver logic output, with output voltage high of VCC - 0.1 V minimum at IOUT = -1 mA."
      },
      {
        "number": "18",
        "name": "R2OUT",
        "type": "output",
        "description": "Second receiver logic output, which is always active to provide the wake-up function for the serial port."
      },
      {
        "number": "19",
        "name": "R1OUT",
        "type": "output",
        "description": "First receiver logic output, with output voltage low of 0.4 V maximum at IOUT = 1.6 mA."
      },
      {
        "number": "20",
        "name": "R2OUTB",
        "type": "output",
        "description": "Non-inverting complementary receiver output, always active for wake-up."
      },
      {
        "number": "21",
        "name": "R1OUTB",
        "type": "output",
        "description": "Non-inverting complementary receiver output, always active for wake-up."
      },
      {
        "number": "22",
        "name": "SHDN",
        "type": "input",
        "description": "Shutdown control input, active low, with a logic threshold low of 0.8 V maximum."
      },
      {
        "number": "23",
        "name": "EN",
        "type": "input",
        "description": "Receiver enable input, active low, with a logic threshold low of 0.8 V maximum."
      },
      {
        "number": "24",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of the voltage-doubler charge pump capacitor."
      },
      {
        "number": "25",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "26",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, specified from 3 V to 5.5 V."
      },
      {
        "number": "27",
        "name": "V+",
        "type": "power_out",
        "description": "+5.5 V output generated by the charge pump, with an extra positive voltage limit of 7 V magnitude (absolute maximum)."
      },
      {
        "number": "28",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of the voltage-doubler charge pump capacitor."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 2 (C2-) and pin 24 (C1-) are charge pump capacitor terminals with no explicit ERC pin type in th; The datasheet pin table is for both the ST3241EB and ST3241EC; the ordering table lists ST3241EBPR a; Table 2 (shutdown/enable truth table) is garbled in the extracted text; its logic values were not us"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0584,
        "at": "2026-10-08T19:31:45"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588902855277760512",
        "pages": 14,
        "sha256": "3aa1c70966b2daf6",
        "source_tier": "lcsc"
      },
      "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": "st3241ebpr.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": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "st3241ebpr-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": "aade3f41844879766a2cf80fcb7a75fe0d7b716aa5ddc0aa0d6cf4066e76456d",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}