UM232EESE

{
  "schema_version": 1,
  "type": "component",
  "slug": "um232eese",
  "title": "UM232EESE",
  "brief": "Union Semiconductor RS232 ICs, SOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "um232eese"
  ],
  "component": {
    "mpn": "UM232EESE",
    "manufacturer": "Union Semiconductor",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c09c47161a8abbfc06ede5fa410dc8b6.pdf",
    "parts": {
      "symbol": "um232eese.kicad_sym",
      "footprint": "um232eese.kicad_mod",
      "model_3d": "um232eese-etched.glb",
      "model_3d_plain": "um232eese.glb",
      "model_3d_step": "um232eese-etched.step",
      "model_3d_step_plain": "um232eese.step",
      "lbr": "um232eese.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of the voltage-doubler (positive charge pump) flying capacitor. Connect a 0.1μF ceramic capacitor between C1+ (pin 1) and C1- (pin 3)."
      },
      {
        "number": "2",
        "name": "V+",
        "type": "power_out",
        "description": "+2·VCC (approximately +10V) output generated by the internal charge-pump voltage doubler. Bypass to GND with a 0.1μF capacitor; may supply a small load current at the expense of driver swing."
      },
      {
        "number": "3",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of the voltage-doubler (positive charge pump) flying capacitor. Paired with C1+ (pin 1) via a 0.1μF ceramic capacitor."
      },
      {
        "number": "4",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of the voltage-inverter (negative charge pump) flying capacitor. Connect a 0.1μF ceramic capacitor between C2+ (pin 4) and C2- (pin 5)."
      },
      {
        "number": "5",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of the voltage-inverter (negative charge pump) flying capacitor. Paired with C2+ (pin 4) via a 0.1μF ceramic capacitor."
      },
      {
        "number": "6",
        "name": "V-",
        "type": "power_out",
        "description": "-2·VCC (approximately -10V) output generated by the internal charge-pump voltage inverter. Bypass to GND with a 0.1μF capacitor."
      },
      {
        "number": "7",
        "name": "T2OUT",
        "type": "output",
        "description": "RS-232 line driver #2 output. Inverting driver output swinging typically ±9V (guaranteed ±5V into 3kΩ / 2500pF). Slew rate internally limited to <30V/μs; short-circuit and ±15kV ESD protected."
      },
      {
        "number": "8",
        "name": "R2IN",
        "type": "input",
        "description": "RS-232 line receiver #2 input. Accepts ±30V input, typical thresholds VIL=1.2V / VIH=1.7V with ~0.5V hysteresis, ~5kΩ internal pull-down to GND. ±15kV ESD protected."
      },
      {
        "number": "9",
        "name": "R2OUT",
        "type": "output",
        "description": "RS-232 line receiver #2 output (TTL/CMOS logic level). Inverted with respect to R2IN; VOL≤0.4V @ 3.2mA sink, VOH≥3.5V @ 1mA source."
      },
      {
        "number": "10",
        "name": "T2IN",
        "type": "input",
        "description": "RS-232 line driver #2 input (TTL/CMOS logic level). VIL≤0.8V, VIH≥2.0V; internally pulled to VCC through ~400kΩ so an unconnected input defaults high."
      },
      {
        "number": "11",
        "name": "T1IN",
        "type": "input",
        "description": "RS-232 line driver #1 input (TTL/CMOS logic level). VIL≤0.8V, VIH≥2.0V; internally pulled to VCC through ~400kΩ so an unconnected input defaults high."
      },
      {
        "number": "12",
        "name": "R1OUT",
        "type": "output",
        "description": "RS-232 line receiver #1 output (TTL/CMOS logic level). Inverted with respect to R1IN; VOL≤0.4V @ 3.2mA sink, VOH≥3.5V @ 1mA source."
      },
      {
        "number": "13",
        "name": "R1IN",
        "type": "input",
        "description": "RS-232 line receiver #1 input. Accepts ±30V input, typical thresholds VIL=1.2V / VIH=1.7V with ~0.5V hysteresis, ~5kΩ internal pull-down to GND. ±15kV ESD protected."
      },
      {
        "number": "14",
        "name": "T1OUT",
        "type": "output",
        "description": "RS-232 line driver #1 output. Inverting driver output swinging typically ±9V (guaranteed ±5V into 3kΩ / 2500pF). Slew rate internally limited to <30V/μs; short-circuit and ±15kV ESD protected."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / 0V reference for logic and RS-232 signaling."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply input, +4.5V to +5.5V (nominal +5V). Typical ICC = 10mA (15mA max) no-load. Bypass to GND with at least 0.1μF ceramic."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/c09c47161a8abbfc06ede5fa410dc8b6.pdf",
        "pages": null,
        "sha256": "839dd4779cce1a1e",
        "source_tier": "lcsc"
      },
      "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"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Union Semiconductor",
      "Package": "SOP-16",
      "Category": "Interface",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "um232eese"
  ],
  "discovery_pitch": "UM232EESE (Union Semiconductor) 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",
    "um232eese.kicad_sym",
    "um232eese.kicad_mod",
    "um232eese.glb",
    "um232eese.step",
    "um232eese.lbr",
    "docs/hero.png",
    "docs/um232eese-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "um232eese-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "UM232EESE",
      "kind": "packaging"
    },
    {
      "mpn": "UM232EESEPE",
      "kind": "packaging"
    },
    {
      "mpn": "UM232EESEUE",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T13:45:58.664Z"
}