ADM1385ARSZ

{
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  "type": "component",
  "slug": "adm1385arsz",
  "title": "ADM1385ARSZ",
  "brief": "Analog Devices RS232 ICs, SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "communication interface chip-uart-485-232",
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  "component": {
    "mpn": "ADM1385ARSZ",
    "manufacturer": "Analog Devices",
    "package": "SSOP-20-208mil",
    "pin_count": 20,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "RS232 ICs",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/ADM3202_3222_1385.pdf",
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    "distributor_links": {
      "lcsc": "C657944",
      "digikey": "505-ADM1385ARSZ-ND",
      "mouser": "584-ADM1385ARSZ"
    },
    "distributor_check": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "DD",
        "type": "input",
        "description": "Driver disable input; when low, the charge pump is turned off and the transmitters are disabled while the receivers remain active."
      },
      {
        "number": "2",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of external charge pump capacitor C1; a 0.1 µF capacitor is recommended, with larger capacitors up to 47 µF allowed."
      },
      {
        "number": "3",
        "name": "V+",
        "type": "power_out",
        "description": "Internally generated positive supply, +6 V nominal."
      },
      {
        "number": "4",
        "name": "C1–",
        "type": "passive",
        "description": "Negative terminal of external charge pump capacitor C1; a 0.1 µF capacitor is recommended, with larger capacitors up to 47 µF allowed."
      },
      {
        "number": "5",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of external charge pump capacitor C2; a 0.1 µF capacitor is recommended, with larger capacitors up to 47 µF allowed."
      },
      {
        "number": "6",
        "name": "C2–",
        "type": "passive",
        "description": "Negative terminal of external charge pump capacitor C2; a 0.1 µF capacitor is recommended, with larger capacitors up to 47 µF allowed."
      },
      {
        "number": "7",
        "name": "V–",
        "type": "power_out",
        "description": "Internally generated negative supply, −6 V nominal."
      },
      {
        "number": "8",
        "name": "T2OUT",
        "type": "output",
        "description": "Transmitter 2 RS-232 output at RS-232 signal levels, typically ±9 V."
      },
      {
        "number": "9",
        "name": "R2IN",
        "type": "input",
        "description": "Receiver 2 input accepting RS-232 signal levels, with an internal 5 kΩ pull-down to GND and protection up to ±30 V."
      },
      {
        "number": "10",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "12",
        "name": "R2OUT",
        "type": "output",
        "description": "Receiver 2 CMOS logic output."
      },
      {
        "number": "13",
        "name": "T2IN",
        "type": "input",
        "description": "Transmitter 2 input accepting TTL/CMOS logic levels."
      },
      {
        "number": "14",
        "name": "T1IN",
        "type": "input",
        "description": "Transmitter 1 input accepting TTL/CMOS logic levels."
      },
      {
        "number": "15",
        "name": "R1OUT",
        "type": "output",
        "description": "Receiver 1 CMOS logic output."
      },
      {
        "number": "16",
        "name": "R1IN",
        "type": "input",
        "description": "Receiver 1 input accepting RS-232 signal levels, with an internal 5 kΩ pull-down to GND and protection up to ±30 V."
      },
      {
        "number": "17",
        "name": "T1OUT",
        "type": "output",
        "description": "Transmitter 1 RS-232 output at RS-232 signal levels, typically ±9 V."
      },
      {
        "number": "18",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; must be connected to 0 V."
      },
      {
        "number": "19",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply input, 3.3 V ± 0.3 V."
      },
      {
        "number": "20",
        "name": "SD",
        "type": "input",
        "description": "Shutdown control, active low; when low, the charge pump is shut down and all transmitters and receivers are disabled."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 1 is printed as 'DD' in Figure 7 and Table 3 (the overbar is lost in the text extraction); it is"
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        "at": "2026-10-28T15:49:22"
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        "pages": 16,
        "sha256": "cd33ca7a96faf2c0",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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      "Package": "SSOP-20-208mil",
      "Category": "Communication Interface Chip/UART/485/232",
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        {
          "name": "Logic Pull-Up Current",
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          "unit": "μA",
          "min": -10,
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        {
          "name": "EIA-232 Input Voltage Range",
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          "min": -30,
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        {
          "name": "EIA-232 Input Threshold Low",
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        {
          "name": "EIA-232 Input Threshold High",
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          "min": 1.6,
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        {
          "name": "EIA-232 Input Hysteresis",
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        {
          "name": "EIA-232 Input Resistance",
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          "name": "RS-232 Output Short-Circuit Current",
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          "min": -15,
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          "name": "Output Leakage Current (transmitter)",
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        {
          "name": "Maximum Data Rate",
          "symbol": "",
          "kind": "timing",
          "unit": "kbps",
          "min": null,
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        {
          "name": "Receiver Propagation Delay TPHL",
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          "name": "Receiver Output Enable Time",
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          "name": "Receiver Output Disable Time",
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          "unit": "ns",
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          "name": "Transition Region Slew Rate",
          "symbol": "",
          "kind": "timing",
          "unit": "V/μs",
          "min": 5.5,
          "typ": 10,
          "max": 30,
          "conditions": "Measured from +3 V to −3 V or −3 V to +3 V, VCC = +3.3 V; RL = 3 kΩ, CL = 1000 pF, TA = 25°C",
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        {
          "name": "VCC Supply Voltage (absolute maximum)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
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        {
          "name": "V+ Supply Voltage (absolute maximum)",
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          "min": -0.3,
          "typ": null,
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          "conditions": "(VCC − 0.3 V) to +14 V",
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        {
          "name": "V− Supply Voltage (absolute maximum)",
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          "unit": "V",
          "min": -14,
          "typ": null,
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          "conditions": "+0.3 V to −14 V",
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        {
          "name": "RIN Input Voltage (absolute maximum)",
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