MAX3232ECMT

{
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  "type": "component",
  "slug": "max3232ecmt",
  "title": "MAX3232ECMT",
  "brief": "HGSEMI 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": [
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    "interface",
    "max3232ecmt",
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  "component": {
    "mpn": "MAX3232ECMT",
    "manufacturer": "HGSEMI",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756608466918088704",
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      "lbr": "max3232ecmt.lbr"
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    "distributor_links": {
      "lcsc": "C5310889"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T15:46:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of the first charge-pump capacitor, which connects externally to C1- (the datasheet specifies 0.1 µF capacitors for 3.3 V operation)."
      },
      {
        "number": "2",
        "name": "V+",
        "type": "power_out",
        "description": "Doubled-voltage output of the charge pump, which must stay within 7 V magnitude with |V+| + |V-| not exceeding 13 V (absolute maximum, page 3)."
      },
      {
        "number": "3",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of the first charge-pump capacitor, connected to C1+ through the external capacitor."
      },
      {
        "number": "4",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of the second charge-pump capacitor, connected to C2- through the external capacitor."
      },
      {
        "number": "5",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of the second charge-pump capacitor, connected to C2+ through the external capacitor."
      },
      {
        "number": "6",
        "name": "V-",
        "type": "power_out",
        "description": "Inverted-voltage output of the charge pump, which must stay within 7 V magnitude with |V+| + |V-| not exceeding 13 V (absolute maximum, page 3)."
      },
      {
        "number": "7",
        "name": "T2OUT",
        "type": "output",
        "description": "RS-232 output of the second transmitter, rated ±13.2 V absolute maximum and short-circuit tolerant to GND (continuous)."
      },
      {
        "number": "8",
        "name": "R2IN",
        "type": "input",
        "description": "RS-232 input of the second receiver, rated ±25 V absolute maximum with a 3 kΩ to 7 kΩ input resistance range (typically 5 kΩ)."
      },
      {
        "number": "9",
        "name": "R2OUT",
        "type": "output",
        "description": "TTL/CMOS output of the second receiver, referenced to VCC and limited to -0.3 V to (VCC + 0.3) V."
      },
      {
        "number": "10",
        "name": "T2IN",
        "type": "input",
        "description": "TTL/CMOS logic input of the second transmitter, with absolute maximum range -0.3 V to 6 V."
      },
      {
        "number": "11",
        "name": "T1IN",
        "type": "input",
        "description": "TTL/CMOS logic input of the first transmitter, with absolute maximum range -0.3 V to 6 V."
      },
      {
        "number": "12",
        "name": "R1OUT",
        "type": "output",
        "description": "TTL/CMOS output of the first receiver, referenced to VCC and limited to -0.3 V to (VCC + 0.3) V."
      },
      {
        "number": "13",
        "name": "R1IN",
        "type": "input",
        "description": "RS-232 input of the first receiver, rated ±25 V absolute maximum."
      },
      {
        "number": "14",
        "name": "T1OUT",
        "type": "output",
        "description": "RS-232 output of the first transmitter, rated ±13.2 V absolute maximum and short-circuit tolerant to GND (continuous)."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, specified 3.3 V to 5.5 V in operation (absolute maximum -0.3 V to 6 V)."
      }
    ],
    "provenance": {
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Charge-pump capacitor value conflicts within the datasheet: page 2 says 0.1 µF standard capacitors s; The datasheet gives no per-pin pad layout beyond a single pin table shared by DIP-16, SOP-16 and TSS; The datasheet gives V+ and V- limits only as absolute maximums (V+ ≤ 7 V, V- ≥ -7 V, |V+|+|V-| ≤ 13 "
        ],
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        "at": "2026-10-18T15:43:18"
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        "total": 16,
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      "Manufacturer": "HGSEMI",
      "Package": "TSSOP-16",
      "Category": "Interface",
      "Pins": "16"
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        {
          "name": "Operating Temperature (MAX3232EC)",
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          "name": "Storage Temperature",
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          "min": -60,
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          "name": "Lead Temperature",
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          "conditions": "Soldering, 10 seconds",
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          "name": "Supply Voltage Operating Range",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.3,
          "typ": null,
          "max": 5.5,
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        {
          "name": "VCC Power Supply Current",
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          "kind": "electrical",
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          "kind": "electrical",
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          "name": "Input Logic Threshold High",
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        {
          "name": "Input Leakage Current",
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          "kind": "electrical",
          "unit": "µA",
          "min": -1,
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          "name": "Transmitter Output Voltage Swing",
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          "name": "Transmitter Output Voltage Swing",
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          "name": "Transmitter Output Resistance",
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          "kind": "electrical",
          "unit": "Ω",
          "min": 300,
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          "conditions": "VCC = V+ = V- = 0V VOUT = ±2V",
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        {
          "name": "Output Short Circuit Current",
          "symbol": "ITSC",
          "kind": "electrical",
          "unit": "mA",
          "min": -60,
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          "conditions": "VCC = 3.3V to 5V VOUT = 0V",
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          "name": "Receiver Input Voltage Operating Range",
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          "name": "RS-232 Input Threshold Low",
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          "conditions": "TA = 25°C VCC = 3.3V",
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          "name": "RS-232 Input Threshold Low",
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          "name": "RS-232 Input Threshold High",
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          "name": "RS-232 Input Threshold High",
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          "name": "Input Hysteresis",
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          "name": "Input Resistance",
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          "name": "TTL/CMOS Output Voltage Low",
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          "name": "Data Transfer Rate",
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          "conditions": "RL = 3KΩ CL2= 1000pF one transmitter switching VCC=3.3V",
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          "name": "Propagation Delay Input to Output (receiver)",
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          "conditions": "TA = 25°C RL = 3KΩ to 7KΩ VCC =3.3V measured from +3V to -3V or -3V to +3V CL= 150pF to 1000pF",
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