MAX3222EETP+T

{
  "schema_version": 1,
  "type": "component",
  "slug": "max3222eetp-t",
  "title": "MAX3222EETP+T",
  "brief": "Maxim Integrated RS232 ICs, TQFN-20(5x5). 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",
    "max3222eetp+t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MAX3222EETP+T",
    "manufacturer": "Maxim Integrated",
    "package": "TQFN-20(5x5)",
    "pin_count": 21,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "RS232 ICs",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/max3222e-max3246e.pdf",
    "parts": {
      "symbol": "max3222eetp-t.kicad_sym",
      "footprint": "max3222eetp-t.kicad_mod",
      "model_3d": "max3222eetp-t-hero.glb",
      "model_3d_plain": "max3222eetp-t-etched.glb",
      "model_3d_step": "max3222eetp-t-etched.step",
      "model_3d_step_plain": "max3222eetp-t.step",
      "lbr": "max3222eetp-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C2976376",
      "digikey": "MAX3222EETP+TTR-ND",
      "mouser": "700-MAX3222EETPT"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T01:25:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MAX3222EETP+TTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "700-MAX3222EETPT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of the voltage-doubler charge-pump capacitor; the charge pump requires 0.1µF capacitors."
      },
      {
        "number": "2",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of the voltage-doubler charge-pump capacitor."
      },
      {
        "number": "3",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of the inverting charge-pump capacitor."
      },
      {
        "number": "4",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of the inverting charge-pump capacitor."
      },
      {
        "number": "5",
        "name": "V-",
        "type": "power_out",
        "description": "Negative supply of about -5.5V generated by the inverting charge pump."
      },
      {
        "number": "6",
        "name": "T2OUT",
        "type": "output",
        "description": "RS-232 transmitter output, forced to high impedance in shutdown and permitted to be driven up to ±12V in shutdown."
      },
      {
        "number": "7",
        "name": "R2IN",
        "type": "input",
        "description": "RS-232 receiver input, absolute maximum rating ±25V to GND."
      },
      {
        "number": "8",
        "name": "R2OUT",
        "type": "output",
        "description": "TTL/CMOS inverting receiver output, which goes high impedance when EN is driven high."
      },
      {
        "number": "9",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "10",
        "name": "T2IN",
        "type": "input",
        "description": "TTL/CMOS transmitter input; the MAX3222E transmitter inputs have no pullup, so unused inputs must be connected to GND or VCC."
      },
      {
        "number": "11",
        "name": "T1IN",
        "type": "input",
        "description": "TTL/CMOS transmitter input; the MAX3222E transmitter inputs have no pullup, so unused inputs must be connected to GND or VCC."
      },
      {
        "number": "12",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "13",
        "name": "R1OUT",
        "type": "output",
        "description": "TTL/CMOS inverting receiver output, which goes high impedance when EN is driven high."
      },
      {
        "number": "14",
        "name": "R1IN",
        "type": "input",
        "description": "RS-232 receiver input, absolute maximum rating ±25V to GND."
      },
      {
        "number": "15",
        "name": "T1OUT",
        "type": "output",
        "description": "RS-232 transmitter output, forced to high impedance in shutdown and permitted to be driven up to ±12V in shutdown."
      },
      {
        "number": "16",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "17",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, +3.0V to +5.5V."
      },
      {
        "number": "18",
        "name": "SHDN",
        "type": "input",
        "description": "Shutdown control, active low; when SHDN is GND the transmitters are disabled and their outputs are high impedance."
      },
      {
        "number": "19",
        "name": "EN",
        "type": "input",
        "description": "Receiver enable, active low; driving EN high places the receivers into a high-impedance state."
      },
      {
        "number": "20",
        "name": "V+",
        "type": "power_out",
        "description": "Positive supply of about +5.5V generated by the doubling charge pump."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The exposed pad (EP) is listed in the pin description table as a non-numbered pad with no pin number; The multi-package pin table gives TQFN pin numbers for T_OUT, R_IN, R_OUT and T_IN as two-number pai; Pins 9 and 12 are listed as N.C. (no connection) for the MAX3222E TQFN.",
          "exposed pad 21 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint",
          "8/21 pins cited to the wrong page (name found elsewhere): ['6:T2OUT@p7', '7:R2IN@p7', '8:R2OUT@p7', '10:T2IN@p7']"
        ],
        "pages_sent": 13,
        "cost_usd": 0.1028,
        "at": "2026-10-31T01:24:42"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/max3222e-max3246e.pdf",
        "pages": 22,
        "sha256": "773dd6aa67273c10",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "max3222eetp-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          5,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9466f19e7a94c1920e0c82ac10746517bca0b846bd3c01a7053914bd9856799f",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "max3222eetp-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          5,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6a007a611a7b6f98f6f2293251527dd1b92422c62cee9ec5ffd0917ac2b0b9d8",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Maxim Integrated",
      "Package": "TQFN-20(5x5)",
      "Category": "Communication Interface Chip/UART/485/232",
      "Pins": "21"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "773dd6aa67273c10362119bc115eb772171d57f16f6980adf69942f1712ffeac",
      "rows": [
        {
          "name": "VCC to GND",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "V+ to GND",
          "symbol": "V+",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "Note 1",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "V- to GND",
          "symbol": "V-",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -7,
          "typ": null,
          "max": 0.3,
          "conditions": "Note 1",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "V+ + |V-|",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 13,
          "conditions": "Note 1",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltages T_IN, EN, SHDN, MBAUD to GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage R_IN to GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage T_OUT to GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -13.2,
          "typ": null,
          "max": 13.2,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range (MAX32__EE__)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "EE grade, MAX3222EETP",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature (soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "soldering, 10s",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Soldering temperature (reflow)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "reflow",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.3,
          "max": 1,
          "conditions": "SHDN = VCC, no load (MAX3222E)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Shutdown supply current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 10,
          "conditions": "SHDN = GND",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input logic low",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "T_IN, EN, SHDN, MBAUD",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input logic high (VCC = +3.3V)",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "VCC = +3.3V; T_IN, EN, SHDN, MBAUD",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input logic high (VCC = +5.0V)",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "VCC = +5.0V; T_IN, EN, SHDN, MBAUD",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current T_IN, EN, SHDN",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "MAX3222E",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output leakage current R_OUT (receivers disabled)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "EN = VCC, receivers disabled",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output-voltage low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IOUT = 1.6mA (MAX3222E)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input threshold low (VCC = +3.3V)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.6,
          "typ": 1.1,
          "max": null,
          "conditions": "TA = +25°C, VCC = +3.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input threshold low (VCC = +5.0V)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.8,
          "typ": 1.5,
          "max": null,
          "conditions": "TA = +25°C, VCC = +5.0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input threshold high (VCC = +3.3V)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": 2.4,
          "max": null,
          "conditions": "TA = +25°C, VCC = +3.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input threshold high (VCC = +5.0V)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": 2.4,
          "max": null,
          "conditions": "TA = +25°C, VCC = +5.0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input resistance",
          "symbol": "RIN",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 3,
          "typ": 5,
          "max": 7,
          "conditions": "TA = +25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage swing",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "V",
          "min": -5,
          "typ": 5.4,
          "max": 5,
          "conditions": "All transmitter outputs loaded with 3kΩ to ground",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output resistance (min)",
          "symbol": "ROUT",
          "kind": "electrical",
          "unit": "Ω",
          "min": 300,
          "typ": null,
          "max": null,
          "conditions": "VCC = 0V, transmitter output = ±2V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output resistance (max)",
          "symbol": "ROUT",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VCC = 0V, transmitter output = ±2V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output short-circuit current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": -60,
          "typ": null,
          "max": 60,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output leakage current T_OUT (transmitters disabled)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "VCC = 0V or +3.0V to +5.5V, VOUT = ±12V, transmitters disabled (MAX3222E)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD Human Body Model, R_IN and T_OUT",
          "symbol": "",
          "kind": "electrical",
          "unit": "kV",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "Human Body Model",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD IEC 1000-4-2 Air-Gap Discharge, R_IN and T_OUT",
          "symbol": "",
          "kind": "electrical",
          "unit": "kV",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "IEC 1000-4-2 Air-Gap Discharge",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD IEC 1000-4-2 Contact Discharge, R_IN and T_OUT",
          "symbol": "",
          "kind": "electrical",
          "unit": "kV",
          "min": -8,
          "typ": null,
          "max": 8,
          "conditions": "IEC 1000-4-2 Contact Discharge",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum data rate",
          "symbol": "",
          "kind": "electrical",
          "unit": "kbps",
          "min": 250,
          "typ": null,
          "max": null,
          "conditions": "RL = 3kΩ, CL = 1000pF, one transmitter switching, TA = TMIN to TMAX (MAX3222E)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver output enable time",
          "symbol": "",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Normal operation (except MAX3232E)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver output disable time",
          "symbol": "",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Normal operation (except MAX3232E)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Transmitter skew",
          "symbol": "|tPHL - tPLH|",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "Transmitter zero crosspoints",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver skew",
          "symbol": "|tPHL - tPLH|",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Transition-region slew rate",
          "symbol": "",
          "kind": "timing",
          "unit": "V/µs",
          "min": 6,
          "typ": null,
          "max": 30,
          "conditions": "VCC = +3.3V, TA = +25°C, RL = 3kΩ to 7kΩ, CL = 150pF to 1000pF, one transmitter switching",
          "source_page": 4,
          "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",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver propagation delay tPLH",
          "symbol": "tPLH",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 0.15,
          "max": null,
          "conditions": "Receiver input to receiver output, CL = 150pF",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Transmitter input hysteresis",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Receiver input hysteresis",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "",
          "source_page": 3,
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