SN65C3221IPWRQ1

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn65c3221ipwrq1",
  "title": "SN65C3221IPWRQ1",
  "brief": "Texas Instruments Pre-ordered Chips, TSSOP-16. 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 ics",
    "sn65c3221ipwrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SN65C3221IPWRQ1",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Interface ICs",
    "subcategory": "Pre-ordered Chips",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn65c3221-q1.pdf",
    "parts": {
      "symbol": "sn65c3221ipwrq1.kicad_sym",
      "footprint": "sn65c3221ipwrq1.kicad_mod",
      "model_3d": "sn65c3221ipwrq1-hero.glb",
      "model_3d_plain": "sn65c3221ipwrq1-etched.glb",
      "model_3d_step": "sn65c3221ipwrq1-etched.step",
      "model_3d_step_plain": "sn65c3221ipwrq1.step",
      "lbr": "sn65c3221ipwrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2671377",
      "digikey": "296-23176-2-ND",
      "mouser": "595-SN65C3221IPWRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T18:30:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-23176-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-SN65C3221IPWRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Receiver enable control input (VIH 2 V min at 3.3 V, 2.4 V min at 5 V; VIL 0.8 V max); low enables ROUT, high puts ROUT in high impedance."
      },
      {
        "number": "2",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of charge-pump capacitor C1 (0.1 µF for VCC = 3.3 V ± 0.3 V, 0.047 µF for 5 V ± 0.5 V)."
      },
      {
        "number": "3",
        "name": "V+",
        "type": "power_out",
        "description": "Positive charge-pump output supply for RS-232 drivers, with capacitor C3 to VCC or GND; absolute maximum 7 V."
      },
      {
        "number": "4",
        "name": "C1−",
        "type": "passive",
        "description": "Negative terminal of charge-pump capacitor C1 (0.1 µF for VCC = 3.3 V ± 0.3 V, 0.047 µF for 5 V ± 0.5 V)."
      },
      {
        "number": "5",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of charge-pump capacitor C2 (0.1 µF at 3.3 V, 0.33 µF at 5 V)."
      },
      {
        "number": "6",
        "name": "C2−",
        "type": "passive",
        "description": "Negative terminal of charge-pump capacitor C2 (0.1 µF at 3.3 V, 0.33 µF at 5 V)."
      },
      {
        "number": "7",
        "name": "V−",
        "type": "power_out",
        "description": "Negative charge-pump output supply for RS-232 drivers, with capacitor C4 to GND; absolute maximum −7 V."
      },
      {
        "number": "8",
        "name": "RIN",
        "type": "input",
        "description": "RS-232 receiver input with 5 kΩ nominal input resistance, ±25 V input range and ±15 kV HBM ESD protection."
      },
      {
        "number": "9",
        "name": "ROUT",
        "type": "output",
        "description": "Logic-level receiver output, high impedance when EN is high; VOH of VCC−0.6 V min at −1 mA."
      },
      {
        "number": "10",
        "name": "INVALID",
        "type": "output",
        "description": "Valid-signal output, high when receiver input is above 2.7 V or below −2.7 V (or within ±0.3 V for less than 30 µs) and low when between −0.3 V and 0.3 V for more than 30 µs."
      },
      {
        "number": "11",
        "name": "DIN",
        "type": "input",
        "description": "Logic-level driver input (VIH 2 V min at 3.3 V, 2.4 V min at 5 V; VIL 0.8 V max), accepts 5.5 V maximum."
      },
      {
        "number": "12",
        "name": "FORCEON",
        "type": "input",
        "description": "Logic input that with FORCEOFF high disables auto-powerdown when high; auto-powerdown functions when FORCEON is low."
      },
      {
        "number": "13",
        "name": "DOUT",
        "type": "output",
        "description": "RS-232 driver output with ±15 kV HBM ESD protection, ±5 V minimum swing into 3 kΩ and high impedance when powered off."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for all voltages."
      },
      {
        "number": "15",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input, 3 V to 5.5 V operation with 0.1 µF bypass capacitor."
      },
      {
        "number": "16",
        "name": "FORCEOFF",
        "type": "input",
        "description": "Logic input that shuts off driver and charge pump when low (supply current reduced to 1 µA with EN high); high enables operation with auto-powerdown."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin-to-name mapping read from the top-view pin list and confirmed with the logic diagram pin numbers; Pin types and descriptions for V+ and V− (power_out) and for the capacitor pins (passive) are inferr"
        ],
        "pages_sent": 18,
        "cost_usd": 0.156,
        "at": "2026-10-31T18:30:19"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn65c3221-q1.pdf",
        "pages": 18,
        "sha256": "58557f6d20cfa0e3",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "seat": "z = 0",
        "extents_mm": [
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          1.1
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "sha256": "9e85b3fc0384d1699838e0ff96d740b90ef3e592fe94c37fee620425e8e58ca4",
        "checked": "2026-10-31",
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    ],
    "package_dims": {
      "package_code": "PW0016A",
      "source_page": 15,
      "D": {
        "nom_mm": 5,
        "range_mm": [
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          5.1
        ]
      },
      "E1": {
        "nom_mm": 4.4,
        "range_mm": [
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          4.5
        ]
      },
      "E": {
        "nom_mm": 6.4,
        "range_mm": [
          6.2,
          6.6
        ]
      },
      "e": {
        "nom_mm": 0.65,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.2,
        "range_mm": [
          null,
          1.2
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "sn65c3221ipwrq1.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-16",
      "Category": "Interface ICs",
      "Pins": "16"
    }
  },
  "variants": [],
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "SN65C3221IPWRQ1 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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}