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Ray ds34c86m: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… 99c7765
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  "type": "component",
  "slug": "ds34c86m",
  "title": "DS34C86M",
  "brief": "HGSEMI RS-485 / RS-422 ICs, SOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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  "component": {
    "mpn": "DS34C86M",
    "manufacturer": "HGSEMI",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5560550aa4699232526e3774258c78f8.pdf",
    "parts": {
      "symbol": "ds34c86m.kicad_sym",
      "footprint": "ds34c86m.kicad_mod",
      "model_3d": "ds34c86m-etched.glb",
      "model_3d_plain": "ds34c86m.glb",
      "model_3d_step": "ds34c86m-etched.step",
      "model_3d_step_plain": "ds34c86m.step",
      "lbr": "ds34c86m.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "IN_A-",
        "type": "input",
        "description": "Receiver A inverting differential input. Part of the balanced RS-422/RS-423 pair for channel A; ±0.2 V sensitivity over ±7 V common mode."
      },
      {
        "number": "2",
        "name": "IN_A+",
        "type": "input",
        "description": "Receiver A non-inverting differential input. Part of the balanced RS-422/RS-423 pair for channel A."
      },
      {
        "number": "3",
        "name": "OUT_A",
        "type": "tri_state",
        "description": "Receiver A TRI-STATE CMOS output. Sources/sinks 6 mA; enabled by TRI-STATE CONTROL A/C (pin 4)."
      },
      {
        "number": "4",
        "name": "EN_AC",
        "type": "input",
        "description": "TRI-STATE CONTROL A/C enable input. Independently enables the output buffers of receivers A and C. VIH = 2.0 V min, VIL = 0.8 V max; input rise/fall time ≤ 500 ns."
      },
      {
        "number": "5",
        "name": "OUT_C",
        "type": "tri_state",
        "description": "Receiver C TRI-STATE CMOS output. Sources/sinks 6 mA; enabled by TRI-STATE CONTROL A/C (pin 4)."
      },
      {
        "number": "6",
        "name": "IN_C+",
        "type": "input",
        "description": "Receiver C non-inverting differential input. Balanced RS-422/RS-423 pair for channel C."
      },
      {
        "number": "7",
        "name": "IN_C-",
        "type": "input",
        "description": "Receiver C inverting differential input. Balanced RS-422/RS-423 pair for channel C."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device (0 V)."
      },
      {
        "number": "9",
        "name": "IN_D-",
        "type": "input",
        "description": "Receiver D inverting differential input. Balanced RS-422/RS-423 pair for channel D."
      },
      {
        "number": "10",
        "name": "IN_D+",
        "type": "input",
        "description": "Receiver D non-inverting differential input. Balanced RS-422/RS-423 pair for channel D."
      },
      {
        "number": "11",
        "name": "OUT_D",
        "type": "tri_state",
        "description": "Receiver D TRI-STATE CMOS output. Sources/sinks 6 mA; enabled by TRI-STATE CONTROL B/D (pin 12)."
      },
      {
        "number": "12",
        "name": "EN_BD",
        "type": "input",
        "description": "TRI-STATE CONTROL B/D enable input. Independently enables the output buffers of receivers B and D. VIH = 2.0 V min, VIL = 0.8 V max; input rise/fall time ≤ 500 ns."
      },
      {
        "number": "13",
        "name": "OUT_B",
        "type": "tri_state",
        "description": "Receiver B TRI-STATE CMOS output. Sources/sinks 6 mA; enabled by TRI-STATE CONTROL B/D (pin 12)."
      },
      {
        "number": "14",
        "name": "IN_B+",
        "type": "input",
        "description": "Receiver B non-inverting differential input. Balanced RS-422/RS-423 pair for channel B."
      },
      {
        "number": "15",
        "name": "IN_B-",
        "type": "input",
        "description": "Receiver B inverting differential input. Balanced RS-422/RS-423 pair for channel B."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply input. Operating range 4.75 V to 5.25 V (5 V nominal); ICC ≈ 12 mA typical."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/5560550aa4699232526e3774258c78f8.pdf",
        "pages": 8,
        "sha256": "d4babb4ce8ad392f",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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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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        "sha256": "47cc0e7ed4dc99fa2472558e1631c275bb615c269cbb3da54a357e11bc0f275f",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOP-16",
      "Category": "Interface",
      "Pins": "16"
    }
  },
  "variants": [
    {
      "mpn": "DS34C86MM/TR",
      "kind": "packaging"
    },
    {
      "mpn": "DS34C86MN",
      "kind": "packaging"
    },
    {
      "mpn": "DS34C86MMT/TR",
      "kind": "packaging"
    }
  ],
  "sections": [
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  "discovery_triggers": [
    "ds34c86m"
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  "discovery_pitch": "DS34C86M (HGSEMI) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
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  "updated_at": "2026-09-24T20:06:25.631Z"
}