TRSF3221EIDBR

{
  "schema_version": 1,
  "type": "component",
  "slug": "trsf3221eidbr",
  "title": "TRSF3221EIDBR",
  "brief": "Texas Instruments RS232 ICs, SSOP-16-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "trsf3221eidbr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TRSF3221EIDBR",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-16-208mil",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/trsf3221e",
    "parts": {
      "symbol": "trsf3221eidbr.kicad_sym",
      "footprint": "trsf3221eidbr.kicad_mod",
      "model_3d": "trsf3221eidbr-hero.glb",
      "model_3d_plain": "trsf3221eidbr.glb",
      "model_3d_step": "trsf3221eidbr-etched.step",
      "model_3d_step_plain": "trsf3221eidbr.step",
      "lbr": "trsf3221eidbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2671334",
      "digikey": "296-25072-2-ND",
      "mouser": "595-TRSF3221EIDBR"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T07:15:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-25072-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TRSF3221EIDBR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Low input enables receiver ROUT output; high input sets ROUT to high impedance."
      },
      {
        "number": "2",
        "name": "C1+",
        "type": "passive",
        "description": "Positive lead of C1 capacitor."
      },
      {
        "number": "3",
        "name": "V+",
        "type": "power_out",
        "description": "Positive charge pump output for storage capacitor only."
      },
      {
        "number": "4",
        "name": "C1−",
        "type": "passive",
        "description": "Negative lead of C1 capacitor."
      },
      {
        "number": "5",
        "name": "C2+",
        "type": "passive",
        "description": "Positive lead of C2 capacitor."
      },
      {
        "number": "6",
        "name": "C2−",
        "type": "passive",
        "description": "Negative lead of C2 capacitor."
      },
      {
        "number": "7",
        "name": "V−",
        "type": "power_out",
        "description": "Negative charge pump output for storage capacitor only."
      },
      {
        "number": "8",
        "name": "RIN",
        "type": "input",
        "description": "RS232 line data input (from remote RS232 system)."
      },
      {
        "number": "9",
        "name": "ROUT",
        "type": "output",
        "description": "Logic data output (to UART)."
      },
      {
        "number": "10",
        "name": "INVALID",
        "type": "output",
        "description": "Invalid output pin. Output low when RIN input is unpowered."
      },
      {
        "number": "11",
        "name": "DIN",
        "type": "input",
        "description": "Logic data input (from UART)."
      },
      {
        "number": "12",
        "name": "FORCEON",
        "type": "input",
        "description": "Automatic power-down control input."
      },
      {
        "number": "13",
        "name": "DOUT",
        "type": "output",
        "description": "RS232 line data output (to remote RS232 system)."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "15",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply Voltage, Connect to external 3V to 5.5V power supply."
      },
      {
        "number": "16",
        "name": "FORCEOFF",
        "type": "input",
        "description": "Automatic power-down control input."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 11,
        "cost_usd": 0.1465,
        "at": "2026-10-07T07:15:35"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/trsf3221e",
        "pages": 37,
        "sha256": "e624fd35ca2b0a97",
        "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"
    },
    "models_3d": [
      {
        "file": "trsf3221eidbr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          6.2,
          2.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d0e11e46aeca5dbaa5c4bb538f3f4899761267cabdeba6486325ae9e979c03ef",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "trsf3221eidbr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          6.2,
          2.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6a9c6f088e17056c04dc0fb60aa3c0958ff77093e6778e75ffb0a03221bdc05f",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SSOP-16-208mil",
      "Category": "Interface",
      "Pins": "16"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "trsf3221eidbr"
  ],
  "discovery_pitch": "TRSF3221EIDBR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "trsf3221eidbr.kicad_sym",
    "trsf3221eidbr.kicad_mod",
    "trsf3221eidbr.glb",
    "trsf3221eidbr.step",
    "trsf3221eidbr.lbr",
    "docs/hero.png",
    "docs/trsf3221eidbr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "trsf3221eidbr-hero.glb",
    "trsf3221eidbr-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}