ADM232AARNZ

{
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  "type": "component",
  "slug": "adm232aarnz",
  "title": "ADM232AARNZ",
  "brief": "UMW RS232 ICs, SOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.1",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "adm232aarnz"
  ],
  "component": {
    "mpn": "ADM232AARNZ",
    "manufacturer": "UMW",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2402231528_UMW-Youtai-Semiconductor-Co---Ltd--ADM232AARNZ_C2904792.pdf",
    "parts": {
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      "footprint": "adm232aarnz.kicad_mod",
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      "model_3d_step_plain": "adm232aarnz.step",
      "lbr": "adm232aarnz.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of charge-pump capacitor C1 (0.1µF). Connects to C1- (pin 3) via the flying capacitor used to double VCC to V+."
      },
      {
        "number": "2",
        "name": "V+",
        "type": "power_out",
        "description": "+2·VCC (approximately +10V) generated by the charge-pump. Bypass to GND with 0.1µF capacitor."
      },
      {
        "number": "3",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of charge-pump capacitor C1 (0.1µF). Pairs with C1+ (pin 1)."
      },
      {
        "number": "4",
        "name": "C2+",
        "type": "passive",
        "description": "Positive terminal of charge-pump capacitor C2 (0.1µF). Connects to C2- (pin 5) via the flying capacitor used to invert V+ to V-."
      },
      {
        "number": "5",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of charge-pump capacitor C2 (0.1µF). Pairs with C2+ (pin 4)."
      },
      {
        "number": "6",
        "name": "V-",
        "type": "power_out",
        "description": "-2·VCC (approximately -10V) generated by the charge-pump. Bypass to GND with 0.1µF capacitor."
      },
      {
        "number": "7",
        "name": "T2OUT",
        "type": "output",
        "description": "RS-232 driver 2 output. Swings ±5V minimum (typ ±10V) into a 3kΩ to 7kΩ load. Short-circuit current ±60mA max, short-circuit tolerant continuously."
      },
      {
        "number": "8",
        "name": "R2IN",
        "type": "input",
        "description": "RS-232 receiver 2 input. Accepts ±30V RS-232 line levels; input resistance 3-7 kΩ. Thresholds: VIL=0.8V, VIH=2.4V (typ) with 0.2-1V hysteresis."
      },
      {
        "number": "9",
        "name": "R2OUT",
        "type": "output",
        "description": "RS-232 receiver 2 TTL/CMOS output. VOL ≤ 0.4V @ 3.2mA sink, VOH ≥ 3.5V @ 1mA source."
      },
      {
        "number": "10",
        "name": "T2IN",
        "type": "input",
        "description": "RS-232 driver 2 TTL/CMOS input. VIL ≤ 0.8V, VIH ≥ 2V. Input leakage 0.2µA typ / ±10µA max."
      },
      {
        "number": "11",
        "name": "T1IN",
        "type": "input",
        "description": "RS-232 driver 1 TTL/CMOS input. VIL ≤ 0.8V, VIH ≥ 2V. Input leakage 0.2µA typ / ±10µA max."
      },
      {
        "number": "12",
        "name": "R1OUT",
        "type": "output",
        "description": "RS-232 receiver 1 TTL/CMOS output. VOL ≤ 0.4V @ 3.2mA sink, VOH ≥ 3.5V @ 1mA source."
      },
      {
        "number": "13",
        "name": "R1IN",
        "type": "input",
        "description": "RS-232 receiver 1 input. Accepts ±30V RS-232 line levels; input resistance 3-7 kΩ. Thresholds: VIL=0.8V, VIH=2.4V (typ) with 0.2-1V hysteresis."
      },
      {
        "number": "14",
        "name": "T1OUT",
        "type": "output",
        "description": "RS-232 driver 1 output. Swings ±5V minimum (typ ±10V) into a 3kΩ to 7kΩ load. Short-circuit current ±60mA max, short-circuit tolerant continuously."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0V)."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "+4.5V to +5.5V supply voltage input. ICC ≤ 10mA (no load, TA=25°C). Bypass to GND with 0.1µF."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2402231528_UMW-Youtai-Semiconductor-Co---Ltd--ADM232AARNZ_C2904792.pdf",
        "pages": 10,
        "sha256": "25692d681f312ba2",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -4.445
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-16_3.9x9.9mm_P1.27mm@sha256:f9b5075740f7816c",
      "mark": "drawn"
    },
    "models_3d": [
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
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        "extents_mm": [
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        "sha256": "1cc468f644197e701ea473d269857949d02bf99dc48bdfd18ec9908f0fbd92f2",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UMW",
      "Package": "SOP-16",
      "Category": "Interface",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "adm232aarnz"
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  "discovery_pitch": "ADM232AARNZ (UMW) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
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  "visibility": "public",
  "updated_at": "2026-09-24T15:53:34.685Z",
  "description": "UMW RS232 ICs, SOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "org": "adom"
}