ST3232CDR

{
  "schema_version": 1,
  "type": "component",
  "slug": "st3232cdr",
  "title": "ST3232CDR",
  "brief": "STMicroelectronics RS232 ICs, SOIC-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "st3232cdr"
  ],
  "component": {
    "mpn": "ST3232CDR",
    "manufacturer": "STMicroelectronics",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://www.st.com/resource/en/datasheet/st3232cdr.pdf",
    "parts": {
      "symbol": "st3232cdr.kicad_sym",
      "footprint": "st3232cdr.kicad_mod",
      "model_3d": "st3232cdr-etched.glb",
      "model_3d_plain": "st3232cdr.glb",
      "model_3d_step": "st3232cdr-etched.step",
      "model_3d_step_plain": "st3232cdr.step",
      "lbr": "st3232cdr.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal for the first charge pump capacitor. Connect C1 (typ. 0.1 µF at 3 V, 0.047 µF at 5 V) between C1+ and C1-."
      },
      {
        "number": "2",
        "name": "V+",
        "type": "power_out",
        "description": "Doubled (positive) voltage terminal generated by the charge pump (approx. +2 x VCC). Requires reservoir capacitor C3 (typ. 0.1 µF at 3 V, 0.33 µF at 5 V) to GND."
      },
      {
        "number": "3",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal for the first charge pump capacitor. Connect C1 between C1+ (pin 1) and C1- (pin 3)."
      },
      {
        "number": "4",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal for the second charge pump capacitor. Connect C2 (typ. 0.1 µF at 3 V, 0.33 µF at 5 V) between C2+ and C2-."
      },
      {
        "number": "5",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal for the second charge pump capacitor. Connect C2 between C2+ (pin 4) and C2- (pin 5)."
      },
      {
        "number": "6",
        "name": "V-",
        "type": "power_out",
        "description": "Inverted (negative) voltage terminal generated by the charge pump inverter (approx. -2 x VCC). Requires reservoir capacitor C4 (typ. 0.1 µF at 3 V, 0.33 µF at 5 V) to GND. Absolute max 0.3 to -7 V."
      },
      {
        "number": "7",
        "name": "T2OUT",
        "type": "output",
        "description": "Second transmitter (driver) RS-232 output. Output voltage swing typ. +/-5.4 V into 3 kOhm load; short-circuit current +/-60 mA max."
      },
      {
        "number": "8",
        "name": "R2IN",
        "type": "input",
        "description": "Second receiver RS-232 input. Operating input range +/-25 V; input resistance 3-7 kOhm (typ. 5 kOhm); thresholds VRIL 0.6-1.5 V, VRIH up to 2.4 V."
      },
      {
        "number": "9",
        "name": "R2OUT",
        "type": "output",
        "description": "Second receiver TTL/CMOS output. VOL <= 0.4 V at IOUT = 1.6 mA; VOH >= VCC-0.6 V at IOUT = -1 mA."
      },
      {
        "number": "10",
        "name": "T2IN",
        "type": "input",
        "description": "Second transmitter (driver) TTL/CMOS input. VIL <= 0.8 V, VIH >= 2 V (VCC = 3.3 V) or 2.4 V (VCC = 5 V); typical input hysteresis 250 mV."
      },
      {
        "number": "11",
        "name": "T1IN",
        "type": "input",
        "description": "First transmitter (driver) TTL/CMOS input. VIL <= 0.8 V, VIH >= 2 V (VCC = 3.3 V) or 2.4 V (VCC = 5 V); typical input hysteresis 250 mV."
      },
      {
        "number": "12",
        "name": "R1OUT",
        "type": "output",
        "description": "First receiver TTL/CMOS output. VOL <= 0.4 V at IOUT = 1.6 mA; VOH >= VCC-0.6 V at IOUT = -1 mA."
      },
      {
        "number": "13",
        "name": "R1IN",
        "type": "input",
        "description": "First receiver RS-232 input. Operating input range +/-25 V; input resistance 3-7 kOhm (typ. 5 kOhm); thresholds VRIL 0.6-1.5 V, VRIH up to 2.4 V."
      },
      {
        "number": "14",
        "name": "T1OUT",
        "type": "output",
        "description": "First transmitter (driver) RS-232 output. Output voltage swing typ. +/-5.4 V into 3 kOhm load; short-circuit current +/-60 mA max."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for all supply, logic and RS-232 signals."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage, 3.0 to 5.5 V operating (absolute max -0.3 to 6 V). Supply current typ. 0.3 mA at 3 V, 1 mA at 5 V (no load). Decouple with Cbypass to GND (0.1 µF at 3 V, 0.33 µF at 5 V)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/st3232cdr.pdf",
        "pages": 18,
        "sha256": "38bf6fa5becf1b1f",
        "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"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SOIC-16",
      "Category": "Interface",
      "Pins": "16"
    }
  },
  "variants": [
    {
      "mpn": "ST3232CDR",
      "kind": "packaging"
    },
    {
      "mpn": "ST3232BDR",
      "kind": "unknown"
    },
    {
      "mpn": "ST3232CWR",
      "kind": "unknown"
    },
    {
      "mpn": "ST3232BWR",
      "kind": "unknown"
    },
    {
      "mpn": "ST3232CTR",
      "kind": "unknown"
    },
    {
      "mpn": "ST3232BTR",
      "kind": "unknown"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "st3232cdr"
  ],
  "discovery_pitch": "ST3232CDR (STMicroelectronics) 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",
    "st3232cdr.kicad_sym",
    "st3232cdr.kicad_mod",
    "st3232cdr.glb",
    "st3232cdr.step",
    "st3232cdr.lbr",
    "docs/hero.png",
    "docs/st3232cdr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
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  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T08:25:14.779Z"
}