ICL3221EIVZ-T7A

{
  "schema_version": 1,
  "type": "component",
  "slug": "icl3221eivz-t7a",
  "title": "ICL3221EIVZ-T7A",
  "brief": "RENESAS RS232 ICs, 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",
    "communication interface chip-uart-485-232",
    "icl3221eivz-t7a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ICL3221EIVZ-T7A",
    "manufacturer": "RENESAS",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "RS232 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/e7a88454940f15acc12760648a966d71.pdf",
    "parts": {
      "symbol": "icl3221eivz-t7a.kicad_sym",
      "footprint": "icl3221eivz-t7a.kicad_mod",
      "model_3d": "icl3221eivz-t7a-hero.glb",
      "model_3d_plain": "icl3221eivz-t7a-etched.glb",
      "model_3d_step": "icl3221eivz-t7a-etched.step",
      "model_3d_step_plain": "icl3221eivz-t7a.step",
      "lbr": "icl3221eivz-t7a.lbr"
    },
    "distributor_links": {
      "lcsc": "C6968307",
      "digikey": "ICL3221EIVZ-T7ATR-ND",
      "mouser": "968-ICL3221EIVZ-T7A"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T12:05:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ICL3221EIVZ-T7ATR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "968-ICL3221EIVZ-T7A",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Active-low receiver enable control, TTL/CMOS compatible input (logic low max 0.8V)."
      },
      {
        "number": "2",
        "name": "C1+",
        "type": "passive",
        "description": "External capacitor (voltage doubler) is connected to this lead."
      },
      {
        "number": "3",
        "name": "V+",
        "type": "power_out",
        "description": "Internally generated positive transmitter supply (+5.5V)."
      },
      {
        "number": "4",
        "name": "C1-",
        "type": "passive",
        "description": "External capacitor (voltage doubler) is connected to this lead."
      },
      {
        "number": "5",
        "name": "C2+",
        "type": "passive",
        "description": "External capacitor (voltage inverter) is connected to this lead."
      },
      {
        "number": "6",
        "name": "C2-",
        "type": "passive",
        "description": "External capacitor (voltage inverter) is connected to this lead."
      },
      {
        "number": "7",
        "name": "V-",
        "type": "power_out",
        "description": "Internally generated negative transmitter supply (-5.5V)."
      },
      {
        "number": "8",
        "name": "R1IN",
        "type": "input",
        "description": "±15kV ESD protected RS-232 compatible receiver input with 5kΩ input resistance."
      },
      {
        "number": "9",
        "name": "R1OUT",
        "type": "output",
        "description": "TTL/CMOS level receiver output."
      },
      {
        "number": "10",
        "name": "INVALID",
        "type": "output",
        "description": "Active-low output that indicates no valid RS-232 levels are present on any receiver input."
      },
      {
        "number": "11",
        "name": "T1IN",
        "type": "input",
        "description": "TTL/CMOS compatible transmitter input."
      },
      {
        "number": "12",
        "name": "FORCEON",
        "type": "input",
        "description": "Active-high input to override automatic power-down circuitry, keeping transmitters active (FORCEOFF must be high)."
      },
      {
        "number": "13",
        "name": "T1OUT",
        "type": "output",
        "description": "±15kV ESD protected RS-232 level (nominally ±5.5V) transmitter output."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection."
      },
      {
        "number": "15",
        "name": "VCC",
        "type": "power_in",
        "description": "System power supply input (3.0V to 5.5V)."
      },
      {
        "number": "16",
        "name": "FORCEOFF",
        "type": "input",
        "description": "Active low to shut down transmitters and on-chip power supply, overriding automatic circuitry and FORCEON."
      }
    ],
    "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: The pin-configuration text on page 9 is scrambled for the ICL3221E 16-pin package, so pin numbers we; The datasheet text gives no pin types, so the types were assigned from the pin function descriptions"
        ],
        "pages_sent": 22,
        "cost_usd": 0.2352,
        "at": "2026-10-30T12:05:38"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/e7a88454940f15acc12760648a966d71.pdf",
        "pages": 39,
        "sha256": "d263fc23b7ec8030",
        "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": "icl3221eivz-t7a.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": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "icl3221eivz-t7a-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": "c5cede4e68cfba81479ee14353124aaaf201e65e0db4958882ce9a8773251511",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "M16.173",
      "source_page": 30,
      "D": {
        "nom_mm": 5,
        "range_mm": [
          null,
          null
        ]
      },
      "E1": {
        "nom_mm": 4.4,
        "range_mm": [
          null,
          null
        ]
      },
      "E": {
        "nom_mm": 6.4,
        "range_mm": [
          null,
          null
        ]
      },
      "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": "icl3221eivz-t7a.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "RENESAS",
      "Package": "TSSOP-16",
      "Category": "Communication Interface Chip/UART/485/232",
      "Pins": "16"
    },
    "appearance": {
      "contacts": {
        "quote": "C2- External capacitor (voltage inverter) is connected to this lead TIN TTL/CMOS compatible transmitter inputs",
        "page": 10,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "d263fc23b7ec803034fb5e4723795dd0d4cec6fa693e34da378e7d5bc1f34a88"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "d263fc23b7ec803034fb5e4723795dd0d4cec6fa693e34da378e7d5bc1f34a88",
      "rows": [
        {
          "name": "Supply Voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.3,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range (ICL32xxEIX)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Rx Input Voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "VCC to GND",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "V+ to GND",
          "symbol": "V+",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "V- to GND",
          "symbol": "V-",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0.3,
          "typ": null,
          "max": -7,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "V+ to V-",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 14,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Input Voltages TIN, FORCEOFF, FORCEON, EN",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage RIN",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -28,
          "typ": null,
          "max": 28,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage TOUT",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -13.2,
          "typ": null,
          "max": 13.2,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage ROUT, INVALID",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "max printed as VCC + 0.3",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Plastic Package",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance 16 Ld TSSOP",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 145,
          "max": null,
          "conditions": "Typical, low-effective thermal conductivity test board in free air",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, Automatic Power-Down",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 10,
          "conditions": "All RIN Open, FORCEON = GND, FORCEOFF = VCC, 25°C",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, Power-Down",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 10,
          "conditions": "FORCEOFF = SHDN = GND, 25°C",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, Automatic Power-Down Disabled",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.3,
          "max": 1,
          "conditions": "All Outputs Unloaded, FORCEON = FORCEOFF = SHDN = VCC, VCC = 3.15V, ICL3221, 25°C",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Input Logic Threshold Low",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "TIN, FORCEON, FORCEOFF, EN, SHDN, Full",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Input Logic Threshold High",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "VCC = 3.3V, Full",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Input Logic Threshold High",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "VCC = 5.0V, Full",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Input Leakage Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": 0.01,
          "max": 1,
          "conditions": "TIN, FORCEON, FORCEOFF, EN, SHDN, all but ICL3232EF, Full",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Output Leakage Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": -10,
          "typ": 0.05,
          "max": 10,
          "conditions": "FORCEOFF = GND or EN = VCC, Full",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Low",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IOUT = 1.6mA, Full",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Receiver Input Thresholds to Enable Transmitters",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": -2.7,
          "typ": null,
          "max": 2.7,
          "conditions": "ICL32xxE Powers Up, Full",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Receiver Input Thresholds to Disable Transmitters",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "ICL32xxE Powers Down, Full",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "INVALID Output Voltage Low",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IOUT = 1.6mA, Full",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Receiver Threshold to Transmitters Enabled Delay",
          "symbol": "tWU",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "25°C",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Receiver Threshold to INVALID High Delay",
          "symbol": "tINVH",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "25°C",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Receiver Threshold to INVALID Low Delay",
          "symbol": "tINVL",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "25°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Receiver Input Voltage Range",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "25°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Receiver Input Threshold Low",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.6,
          "typ": 1.2,
          "max": null,
          "conditions": "VCC = 3.3V, 25°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Receiver Input Threshold Low",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.8,
          "typ": 1.5,
          "max": null,
          "conditions": "VCC = 5.0V, 25°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Receiver Input Threshold High",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.5,
          "max": 2.4,
          "conditions": "VCC = 3.3V, 25°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Receiver Input Threshold High",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.8,
          "max": 2.4,
          "conditions": "VCC = 5.0V, 25°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Receiver Input Hysteresis",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "25°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Receiver Input Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 3,
          "typ": 5,
          "max": 7,
          "conditions": "25°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Transmitter Output Voltage Swing",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 5,
          "typ": 5.4,
          "max": null,
          "conditions": "All Transmitter Outputs Loaded with 3kΩ to Ground, Full",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Transmitter Output Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": 300,
          "typ": null,
          "max": null,
          "conditions": "VCC = V+ = V- = 0V, Transmitter Output = ±2V, Full",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Transmitter Output Short-Circuit Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 35,
          "max": 60,
          "conditions": "Full",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Transmitter Output Leakage Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "VOUT = ±12V, VCC = 0V or 3V to 5.5V, Automatic Power-Down or FORCEOFF = SHDN = GND, Full",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Maximum Data Rate",
          "symbol": "",
          "kind": "timing",
          "unit": "kbps",
          "min": 250,
          "typ": 500,
          "max": null,
          "conditions": "RL = 3kΩ, CL = 1000pF, One Transmitter Switching, Full",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Receiver Propagation Delay tPHL",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 0.15,
          "max": null,
          "conditions": "Receiver Input to Receiver Output, CL = 150pF, 25°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Receiver Propagation Delay tPLH",
          "symbol": "tPLH",
          "kind": "timing",
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