ST3232EBTR

{
  "schema_version": 1,
  "type": "component",
  "slug": "st3232ebtr",
  "title": "ST3232EBTR",
  "brief": "UMW RS232 ICs, TSSOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "st3232ebtr"
  ],
  "component": {
    "mpn": "ST3232EBTR",
    "manufacturer": "UMW",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/497735594f92d7fd23772952f0b52b65.pdf",
    "parts": {
      "symbol": "st3232ebtr.kicad_sym",
      "footprint": "st3232ebtr.kicad_mod",
      "model_3d": "st3232ebtr-etched.glb",
      "model_3d_plain": "st3232ebtr.glb",
      "model_3d_step": "st3232ebtr-etched.step",
      "model_3d_step_plain": "st3232ebtr.step",
      "lbr": "st3232ebtr.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of the voltage-doubler charge-pump flying capacitor C1. Connects to the external ceramic capacitor (typ. 0.1 µF at Vcc=3.3V; 0.047 µF at Vcc=5V) whose negative terminal ties to C1- (pin 3)."
      },
      {
        "number": "2",
        "name": "V+",
        "type": "power_out",
        "description": "Positive charge-pump output (approximately +5.5V generated by the internal voltage-doubler). Requires an external reservoir capacitor (typ. 0.1 µF / 0.33 µF depending on Vcc) to GND. Absolute max +7V."
      },
      {
        "number": "3",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of the voltage-doubler charge-pump flying capacitor C1 (paired with C1+ on pin 1)."
      },
      {
        "number": "4",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of the inverting charge-pump flying capacitor C2. Connects to the negative terminal on C2- (pin 5)."
      },
      {
        "number": "5",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of the inverting charge-pump flying capacitor C2 (paired with C2+ on pin 4)."
      },
      {
        "number": "6",
        "name": "V-",
        "type": "power_out",
        "description": "Negative charge-pump output (approximately -5.5V generated by the internal inverter). Requires an external reservoir capacitor (typ. 0.1 µF / 0.33 µF depending on Vcc) to GND. Absolute max -7V."
      },
      {
        "number": "7",
        "name": "DOUT2",
        "type": "output",
        "description": "RS-232 driver #2 output. Drives the RS-232 line between roughly ±5V (VOH ≥ +5.0V, VOL ≤ -5.0V into 3 kΩ). Short-circuit current limited to ±35..±60 mA. Transition slew rate 6-30 V/µs."
      },
      {
        "number": "8",
        "name": "RIN2",
        "type": "input",
        "description": "RS-232 receiver #2 input. Accepts ±25V RS-232 line levels with 5 kΩ input impedance (3-7 kΩ). Hysteretic threshold: VIT+ ≈ 1.5V typ, VIT- ≈ 1.2V typ at Vcc=3.3V (0.3V typical hysteresis)."
      },
      {
        "number": "9",
        "name": "ROUT2",
        "type": "output",
        "description": "TTL/CMOS receiver #2 output. Drives logic-level output rail-to-rail (VOH ≥ Vcc-0.6V at -1 mA; VOL ≤ 0.4V at 1.6 mA)."
      },
      {
        "number": "10",
        "name": "DIN2",
        "type": "input",
        "description": "TTL/CMOS driver #2 logic input. VIH ≥ 2V (Vcc=3.3V) or ≥ 2.4V (Vcc=5.5V); VIL ≤ 0.8V. Accepts up to 5.0V logic input even with a 3.3V supply."
      },
      {
        "number": "11",
        "name": "DIN1",
        "type": "input",
        "description": "TTL/CMOS driver #1 logic input. VIH ≥ 2V (Vcc=3.3V) or ≥ 2.4V (Vcc=5.5V); VIL ≤ 0.8V. Accepts up to 5.0V logic input even with a 3.3V supply."
      },
      {
        "number": "12",
        "name": "ROUT1",
        "type": "output",
        "description": "TTL/CMOS receiver #1 output. Drives logic-level output rail-to-rail (VOH ≥ Vcc-0.6V at -1 mA; VOL ≤ 0.4V at 1.6 mA)."
      },
      {
        "number": "13",
        "name": "RIN1",
        "type": "input",
        "description": "RS-232 receiver #1 input. Accepts ±25V RS-232 line levels with 5 kΩ input impedance (3-7 kΩ). Hysteretic threshold: VIT+ ≈ 1.5V typ, VIT- ≈ 1.2V typ at Vcc=3.3V."
      },
      {
        "number": "14",
        "name": "DOUT1",
        "type": "output",
        "description": "RS-232 driver #1 output. Drives the RS-232 line between roughly ±5V (VOH ≥ +5.0V, VOL ≤ -5.0V into 3 kΩ). Short-circuit current limited to ±35..±60 mA. Transition slew rate 6-30 V/µs."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference for both the logic side and the RS-232 charge-pump network."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive logic supply, +3.0V to +5.5V (absolute max +6.0V). Requires an external bypass capacitor to GND (typ. 0.1 µF). Typical no-load supply current ~1 mA (max 3 mA) at Vcc=3.3V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/497735594f92d7fd23772952f0b52b65.pdf",
        "pages": 11,
        "sha256": "72932421b486abe4",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.8625,
        -2.275
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TSSOP-16_4.4x5mm_P0.65mm@sha256:fbac79fc5f310754",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "st3232ebtr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "st3232ebtr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a64cc8bb512bb24605b3a3061057a341a4ea1b6199143cb3b9ee706e445475fd",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UMW",
      "Package": "TSSOP-16",
      "Category": "Interface",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "st3232ebtr"
  ],
  "discovery_pitch": "ST3232EBTR (UMW) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "st3232ebtr.kicad_sym",
    "st3232ebtr.kicad_mod",
    "st3232ebtr.glb",
    "st3232ebtr.step",
    "st3232ebtr-etched.step",
    "st3232ebtr.lbr",
    "docs/hero.png",
    "docs/st3232ebtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "ST3232EBTR",
      "kind": "packaging"
    },
    {
      "mpn": "ST3232EBTRBDR",
      "kind": "packaging"
    },
    {
      "mpn": "ST3232EBTRCDR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T08:25:23.016Z"
}