ADM1385ARSZ

{
  "slug": "adm1385arsz",
  "version": "0.1.0",
  "type": "component",
  "description": "Analog Devices RS232 ICs, SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "adm1385arsz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "adm1385arsz.kicad_sym",
    "adm1385arsz.kicad_mod",
    "adm1385arsz.glb",
    "adm1385arsz.step",
    "adm1385arsz.lbr",
    "docs/hero.png",
    "docs/adm1385arsz-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "adm1385arsz-hero.glb",
    "adm1385arsz-hero.overlay.json",
    "adm1385arsz-etched.glb"
  ],
  "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",
    "parts": {
      "symbol": "adm1385arsz.kicad_sym",
      "footprint": "adm1385arsz.kicad_mod",
      "model_3d": "adm1385arsz-hero.glb",
      "model_3d_plain": "adm1385arsz-etched.glb",
      "model_3d_step": "adm1385arsz-etched.step",
      "model_3d_step_plain": "adm1385arsz.step",
      "lbr": "adm1385arsz.lbr"
    },
    "distributor_links": {
      "lcsc": "C657944",
      "digikey": "505-ADM1385ARSZ-ND",
      "mouser": "584-ADM1385ARSZ"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T15:49:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-ADM1385ARSZ-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-ADM1385ARSZ",
        "status": "found"
      }
    },
    "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."
      }
    ],
    "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: Pin 1 is printed as 'DD' in Figure 7 and Table 3 (the overbar is lost in the text extraction); it is"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0259,
        "at": "2026-10-28T15:49:22"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/ADM3202_3222_1385.pdf",
        "pages": 16,
        "sha256": "cd33ca7a96faf2c0",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9a01a276d0b4d9561efd58f2fcee56f52c1b6ab464ea7a0380cab4e87a924e6",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "adm1385arsz-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0c3d449ce64941384c5c4439ab602dbce8bce54edbf0ba3768c6718f384ad8bc",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}