UM213EEASR

{
  "schema_version": 1,
  "type": "component",
  "slug": "um213eeasr",
  "title": "UM213EEASR",
  "brief": "Union Semiconductor RS232 ICs, SSOP-28. 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",
    "um213eeasr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "UM213EEASR",
    "manufacturer": "Union Semiconductor",
    "package": "SSOP-28",
    "pin_count": 28,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603060200928923648",
    "parts": {
      "symbol": "um213eeasr.kicad_sym",
      "footprint": "um213eeasr.kicad_mod",
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      "model_3d_plain": "um213eeasr-etched.glb",
      "model_3d_step": "um213eeasr-etched.step",
      "model_3d_step_plain": "um213eeasr.step",
      "lbr": "um213eeasr.lbr"
    },
    "distributor_links": {
      "lcsc": "C7542882"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T15:29:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "TOUT3",
        "type": "output",
        "description": "RS-232 driver 3 output, protected to ±15kV ESD."
      },
      {
        "number": "2",
        "name": "TOUT1",
        "type": "output",
        "description": "RS-232 driver 1 output, protected to ±15kV ESD."
      },
      {
        "number": "3",
        "name": "TOUT2",
        "type": "output",
        "description": "RS-232 driver 2 output, protected to ±15kV ESD."
      },
      {
        "number": "4",
        "name": "RIN2",
        "type": "input",
        "description": "RS-232 receiver 2 input, tolerates ±30V and protected to ±15kV ESD."
      },
      {
        "number": "5",
        "name": "ROUT2",
        "type": "tri_state",
        "description": "Receiver 2 TTL/CMOS output, high-impedance in shutdown or when EN is low."
      },
      {
        "number": "6",
        "name": "TIN2",
        "type": "input",
        "description": "Driver 2 TTL/CMOS input, logic low below 0.8V and high above 2.4V."
      },
      {
        "number": "7",
        "name": "TIN1",
        "type": "input",
        "description": "Driver 1 TTL/CMOS input, logic low below 0.8V and high above 2.4V."
      },
      {
        "number": "8",
        "name": "R1OUT",
        "type": "tri_state",
        "description": "Receiver 1 TTL/CMOS output, high-impedance in shutdown or when EN is low."
      },
      {
        "number": "9",
        "name": "R1IN",
        "type": "input",
        "description": "RS-232 receiver 1 input, tolerates ±30V and protected to ±15kV ESD."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "11",
        "name": "VCC",
        "type": "power_in",
        "description": "+4.5V to +5.5V supply voltage input; bypass to ground with at least 0.1µF."
      },
      {
        "number": "12",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of charge pump capacitor C1 (0.1µF)."
      },
      {
        "number": "13",
        "name": "V+",
        "type": "power_out",
        "description": "Charge pump output regulated to +6.5V; pulled to VCC in shutdown."
      },
      {
        "number": "14",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of charge pump capacitor C1 (0.1µF)."
      },
      {
        "number": "15",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of charge pump capacitor C2 (0.1µF)."
      },
      {
        "number": "16",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of charge pump capacitor C2 (0.1µF)."
      },
      {
        "number": "17",
        "name": "V-",
        "type": "power_out",
        "description": "Charge pump output regulated to -6.5V; pulled to ground in shutdown."
      },
      {
        "number": "18",
        "name": "RIN5",
        "type": "input",
        "description": "RS-232 receiver 5 input, stays active in shutdown, tolerates ±30V."
      },
      {
        "number": "19",
        "name": "ROUT5",
        "type": "tri_state",
        "description": "Receiver 5 TTL/CMOS output, remains active in shutdown when EN is high."
      },
      {
        "number": "20",
        "name": "TIN3",
        "type": "input",
        "description": "Driver 3 TTL/CMOS input, logic low below 0.8V and high above 2.4V."
      },
      {
        "number": "21",
        "name": "TIN4",
        "type": "input",
        "description": "Driver 4 TTL/CMOS input, logic low below 0.8V and high above 2.4V."
      },
      {
        "number": "22",
        "name": "ROUT4",
        "type": "tri_state",
        "description": "Receiver 4 TTL/CMOS output, remains active in shutdown when EN is high."
      },
      {
        "number": "23",
        "name": "RIN4",
        "type": "input",
        "description": "RS-232 receiver 4 input, stays active in shutdown, tolerates ±30V."
      },
      {
        "number": "24",
        "name": "EN",
        "type": "input",
        "description": "Receiver enable, active high; low puts receiver outputs in high-impedance, no effect on drivers or charge pumps."
      },
      {
        "number": "25",
        "name": "SHDN",
        "type": "input",
        "description": "Active-low shutdown; low turns off charge pumps and transmitters, reducing supply current to about 1µA."
      },
      {
        "number": "26",
        "name": "ROUT3",
        "type": "tri_state",
        "description": "Receiver 3 TTL/CMOS output, high-impedance in shutdown or when EN is low."
      },
      {
        "number": "27",
        "name": "RIN3",
        "type": "input",
        "description": "RS-232 receiver 3 input, tolerates ±30V and protected to ±15kV ESD."
      },
      {
        "number": "28",
        "name": "TOUT4",
        "type": "output",
        "description": "RS-232 driver 4 output, protected to ±15kV ESD."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "factory": "2.0.0",
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        "primary_model": "claude-sonnet-5-5",
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        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Overbar on SHDN (pin 25) and its non-barred EN (pin 24) was read from the UM213 diagram and agrees w; Receiver outputs are typed tri_state because the datasheet says they go high-impedance; ROUT4 and RO; The pin table calls the receivers RIN_/ROUT_, but pins 8 and 9 are labelled R1OUT and R1IN in the di",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 27,
        "cost_usd": 0.4877,
        "at": "2026-10-18T15:26:58"
      },
      "datasheet": {
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        "pages": 27,
        "sha256": "95e79390224c6dfd",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 28,
        "described": 28,
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Union Semiconductor",
      "Package": "SSOP-28",
      "Category": "Interface",
      "Pins": "28"
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          "name": "Voltage on V+",
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        {
          "name": "Voltage on V-",
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          "min": -9,
          "typ": null,
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        {
          "name": "Voltage on RIN_",
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          "conditions": "",
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        },
        {
          "name": "Continuous Power Dissipation SSOP28",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 762,
          "conditions": "TA=70°C",
          "source_page": 3,
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        },
        {
          "name": "Operating Temperature Range",
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          "min": -40,
          "typ": null,
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        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 165,
          "conditions": "",
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        },
        {
          "name": "Maximum Lead Temperature for Soldering",
          "symbol": "TL",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "10 seconds",
          "source_page": 3,
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        },
        {
          "name": "Voltage on ROUT_",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Max is (VCC+0.3)",
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        },
        {
          "name": "Voltage on TIN_",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Max is (VCC+0.3)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage Input VCC (operating)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Swing",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 5,
          "typ": 6,
          "max": null,
          "conditions": "All transmitter outputs loaded with 3kΩ to ground",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VCC Power Supply Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.6,
          "max": 1,
          "conditions": "No load",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Supply Current (UM213)",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.1,
          "max": 50,
          "conditions": "UM213",
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          "source": "datasheet"
        },
        {
          "name": "Input Logic Threshold Low",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "TIN, EN, SHDN",
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        {
          "name": "Input Logic Threshold High",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "TIN, EN, SHDN",
          "source_page": 4,
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        },
        {
          "name": "RS-232 Input Voltage Operating Range",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "",
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        {
          "name": "Receiver Input Threshold Low (Active Mode)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.8,
          "typ": null,
          "max": 1.2,
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          "source_page": 4,
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        },
        {
          "name": "Receiver Input Threshold Low (Shut down Mode)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.6,
          "typ": null,
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          "conditions": "VCC=+5V, TA=25°C, Shut down Mode",
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          "source": "datasheet"
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        {
          "name": "Receiver Input Threshold High (Active Mode)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.7,
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        {
          "name": "Receiver Input Threshold High (Shut down Mode)",
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          "conditions": "VCC=+5V, TA=25°C, Shut down Mode",
          "source_page": 4,
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        },
        {
          "name": "Input Hysteresis",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.2,
          "typ": 0.5,
          "max": 1,
          "conditions": "VCC=+5V, no hysteresis in shutdown",
          "source_page": 4,
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        },
        {
          "name": "Input Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 3,
          "typ": 5,
          "max": 7,
          "conditions": "VCC=+5V, TA=25°C",
          "source_page": 4,
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        },
        {
          "name": "TTL/CMOS Output Voltage Low",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IOUT=1.6mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "TTL/CMOS Output Voltage High",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 3.5,
          "typ": null,
          "max": null,
          "conditions": "IOUT=1.0mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "TTL/CMOS Output Leakage Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": -10,
          "typ": 0.05,
          "max": 10,
          "conditions": "EN=VCC, EN=0V, 0≤ROUT≤VCC",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Enable Time (UM211/213)",
          "symbol": "",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 600,
          "conditions": "UM211/213",
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          "source": "datasheet"
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        {
          "name": "Output Disable Time (UM211/213)",
          "symbol": "",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "UM211/213",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver Propagation Delay (UM213)",
          "symbol": "",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 4,
          "max": 40,
          "conditions": "SHDN=0V, UM213",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver Propagation Delay (UM213)",
          "symbol": "",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 0.5,
          "max": 10,
          "conditions": "SHDN=VCC, UM213",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Transmitter Output Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": 300,
          "typ": null,
          "max": null,
          "conditions": "VCC=V+=V-=0V, VOUT=±2V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Transition Region Slew Rate",
          "symbol": "",
          "kind": "timing",
          "unit": "V/μs",
          "min": 3,
          "typ": 5.5,
          "max": 30,
          "conditions": "CL=50pF to 2500pF, RL=3kΩ to 7kΩ, VCC=+5V, TA=25°C, measured from +3V to -3V or -3V to +3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "RS-232 Output Short Circuit Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 10,
          "max": 30,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Data Rate",
          "symbol": "",
          "kind": "electrical",
          "unit": "kbps",
          "min": 120,
          "typ": 250,
          "max": null,
          "conditions": "RL=3kΩ to 7kΩ, CL=50pF to 1000pF, one transmitter",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "UM213EEASR (Union Semiconductor) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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