HT3232EERZ

{
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  "type": "component",
  "slug": "ht3232eerz",
  "title": "HT3232EERZ",
  "brief": "HTCSEMI RS232 ICs, SOP-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": [
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    "interface",
    "ht3232eerz",
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  "component": {
    "mpn": "HT3232EERZ",
    "manufacturer": "HTCSEMI",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8618166582451589120",
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    "distributor_links": {
      "lcsc": "C5274697"
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    "distributor_check": {
      "checked_at": "2026-10-18T05:12:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of the first charge-pump capacitor, using a 0.1 µF external capacitor for 3.3 V operation."
      },
      {
        "number": "2",
        "name": "V+",
        "type": "power_out",
        "description": "Doubled-voltage charge-pump terminal with absolute maximum (VCC − 0.3) to 7 V, where |V+| + |V−| must not exceed 13 V."
      },
      {
        "number": "3",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of the first charge-pump capacitor."
      },
      {
        "number": "4",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of the second charge-pump capacitor."
      },
      {
        "number": "5",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of the second charge-pump capacitor."
      },
      {
        "number": "6",
        "name": "V-",
        "type": "power_out",
        "description": "Inverted-voltage charge-pump terminal with absolute maximum -0.3 to -7 V, where |V+| + |V−| must not exceed 13 V."
      },
      {
        "number": "7",
        "name": "T2OUT",
        "type": "output",
        "description": "Second RS-232 transmitter output with absolute maximum range ±13.2 V, minimum swing ±5 V at VCC = 5 V and ±3.5 V at VCC = 3.3 V into a 3 kΩ load, and short-circuit current of ±60 mA."
      },
      {
        "number": "8",
        "name": "R2IN",
        "type": "input",
        "description": "Second RS-232 receiver input with an operating range of ±25 V and input resistance of 3 kΩ to 7 kΩ."
      },
      {
        "number": "9",
        "name": "R2OUT",
        "type": "output",
        "description": "Second TTL/CMOS receiver output with VOL maximum of 0.4 V and VOH of VCC − 0.6 V to VCC − 0.1 V at 3.3 V, and range −0.3 V to (VCC + 0.3) V."
      },
      {
        "number": "10",
        "name": "T2IN",
        "type": "input",
        "description": "Second TTL/CMOS transmitter input with logic-low threshold of 0.8 V maximum and logic-high threshold of 2 V (3.3 V) or 2.4 V (5 V), absolute range -0.3 V to 6 V."
      },
      {
        "number": "11",
        "name": "T1IN",
        "type": "input",
        "description": "First TTL/CMOS transmitter input with logic-low threshold of 0.8 V maximum and logic-high threshold of 2 V (3.3 V) or 2.4 V (5 V), absolute range -0.3 V to 6 V."
      },
      {
        "number": "12",
        "name": "R1OUT",
        "type": "output",
        "description": "First TTL/CMOS receiver output with VOL maximum of 0.4 V and VOH of VCC − 0.6 V to VCC − 0.1 V at 3.3 V, and range −0.3 V to (VCC + 0.3) V."
      },
      {
        "number": "13",
        "name": "R1IN",
        "type": "input",
        "description": "First RS-232 receiver input with an operating range of ±25 V and input resistance of 3 kΩ to 7 kΩ."
      },
      {
        "number": "14",
        "name": "T1OUT",
        "type": "output",
        "description": "First RS-232 transmitter output with absolute maximum range ±13.2 V, minimum swing ±5 V at VCC = 5 V and ±3.5 V at VCC = 3.3 V into a 3 kΩ load, and short-circuit current of ±60 mA."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage of 3.3 V to 5.5 V per the electrical characteristics, with absolute maximum range -0.3 V to 6 V."
      }
    ],
    "provenance": {
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        "primary_model": "claude-haiku-5-5",
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        "guard_notes": [
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        "at": "2026-10-18T05:06:30"
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        "total": 16,
        "described": 16,
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  "metadata": {
    "specs": {
      "Manufacturer": "HTCSEMI",
      "Package": "SOP-16",
      "Category": "Interface",
      "Pins": "16"
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          "name": "Supply Voltage (absolute maximum)",
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          "typ": null,
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          "name": "Receiver Input Voltage Range (absolute maximum)",
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        {
          "name": "Transmitter Output Voltage Range (absolute maximum)",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": -13.2,
          "typ": null,
          "max": 13.2,
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        {
          "name": "Receiver Output Voltage Range (absolute maximum)",
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          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper bound printed as (VCC + 0.3) and not stored",
          "source_page": 2,
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        {
          "name": "Storage Temperature (absolute maximum)",
          "symbol": "Ts",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -60,
          "typ": null,
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          "conditions": "",
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        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "For all packages",
          "source_page": 1,
          "source": "datasheet"
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        {
          "name": "Supply Voltage (electrical test range)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.3,
          "typ": null,
          "max": 5.5,
          "conditions": "Electrical characteristics test condition C1-C4 = 0.1 µF",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "VCC Power Supply Current, 3.3 V",
          "symbol": "ISUPPLY",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.5,
          "max": 5,
          "conditions": "No Load VCC = 3.3V ±10% TA = 25°C",
          "source_page": 3,
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        {
          "name": "VCC Power Supply Current, 5 V",
          "symbol": "ISUPPLY",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 6,
          "max": 10,
          "conditions": "No Load VCC = 5V ±10% TA = 25°C",
          "source_page": 3,
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        {
          "name": "Input Logic Threshold Low",
          "symbol": "VTIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "T-IN (Note 1)",
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          "source": "datasheet"
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        {
          "name": "Input Logic Threshold High, VCC = 3.3 V",
          "symbol": "VTIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
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          "conditions": "VCC = 3.3V",
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          "name": "Input Logic Threshold High, VCC = 5 V",
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          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
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          "conditions": "VCC = 5V",
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          "source": "datasheet"
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        {
          "name": "Input Leakage Current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": 0.01,
          "max": 1,
          "conditions": "T-IN",
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        {
          "name": "Transmitter Output Voltage Swing, VCC = 5.0 V",
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          "min": 5,
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          "conditions": "All transmitter outputs loaded with 3KΩ to GND, VCC = 5.0V; printed ±5 / ±5.4",
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          "name": "Transmitter Output Voltage Swing, VCC = 3.3 V",
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          "min": 3.5,
          "typ": 4,
          "max": null,
          "conditions": "All transmitter outputs loaded with 3KΩ to GND, VCC = 3.3V; printed ±3.5 / ±4.0",
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        {
          "name": "Transmitter Output Resistance",
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          "kind": "electrical",
          "unit": "Ω (max in MΩ)",
          "min": 300,
          "typ": null,
          "max": 10,
          "conditions": "VCC = V+ = V- = 0V VOUT = ±2V; max printed as 10M Ω",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Output Short Circuit Current",
          "symbol": "ITSC",
          "kind": "electrical",
          "unit": "mA",
          "min": -60,
          "typ": null,
          "max": 60,
          "conditions": "VCC = 3.3V to 5V VOUT = 0V; printed ±60 mA",
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          "source": "datasheet"
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          "name": "Receiver Input Voltage Operating Range",
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          "kind": "electrical",
          "unit": "V",
          "min": -25,
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        {
          "name": "RS-232 Input Threshold Low, VCC = 3.3 V",
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          "kind": "electrical",
          "unit": "V",
          "min": 0.6,
          "typ": null,
          "max": 1.2,
          "conditions": "TA = 25°C VCC = 3.3V",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "RS-232 Input Threshold Low, VCC = 5 V",
          "symbol": "VRIL",
          "kind": "electrical",
          "unit": "V",
          "min": 0.8,
          "typ": null,
          "max": 1.5,
          "conditions": "TA = 25°C VCC = 5V",
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          "name": "RS-232 Input Threshold High, VCC = 3.3 V",
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          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": 2.4,
          "conditions": "TA = 25°C VCC = 3.3V",
          "source_page": 3,
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        {
          "name": "RS-232 Input Threshold High, VCC = 5 V",
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          "conditions": "TA = 25°C VCC = 5V",
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        {
          "name": "Input Hysteresis",
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          "unit": "V",
          "min": null,
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        {
          "name": "Input Resistance",
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          "min": 3,
          "typ": 5,
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          "conditions": "TA = 25°C",
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          "name": "TTL/CMOS Output Voltage Low",
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          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IOUT = 1.6mA VCC = 3.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Data Transfer Rate",
          "symbol": "DR",
          "kind": "timing",
          "unit": "Kbps",
          "min": 120,
          "typ": null,
          "max": null,
          "conditions": "RL = 3KΩ CL2= 1000pF one transmitter switching VCC=3.3V",
          "source_page": 4,
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          "name": "Propagation Delay Input to Output, receiver",
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          "name": "Propagation Delay Input to Output, transmitter",
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          "conditions": "RL = 3KΩ CL = 2500pF",
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          "source": "datasheet"
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        {
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        {
          "name": "Transmitter Propagation Delay Difference",
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          "min": null,
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          "name": "Transition Slew Rate",
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          "kind": "timing",
          "unit": "V/µs",
          "min": 3,
          "typ": null,
          "max": 30,
          "conditions": "TA = 25°C RL = 3KΩ to 7KΩ VCC = 3.3V measured from +3V to -3V or -3V to +3V CL = 150pF to 1000pF",
          "source_page": 4,
          "source": "datasheet"
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