DS34C87N

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  "version": "0.1.0",
  "type": "component",
  "description": "HGSEMI RS-485 / RS-422 ICs, DIP-16. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
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    "interface",
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  "component": {
    "mpn": "DS34C87N",
    "manufacturer": "HGSEMI",
    "package": "DIP-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758163152771133440",
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      "lbr": "ds34c87n.lbr"
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    "distributor_links": {
      "lcsc": "C434594"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T16:43:56Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "INPUT A",
        "type": "input",
        "description": "Driver A TTL/CMOS input, with input range 0 V to VCC and protected by ESD diodes to VCC and ground."
      },
      {
        "number": "2",
        "name": "OUTPUTS A (1)",
        "type": "tri_state",
        "description": "First of the two complementary RS-422 differential outputs of driver A, which is TRI-STATE when the A/B control input is low."
      },
      {
        "number": "3",
        "name": "OUTPUTS A (2)",
        "type": "tri_state",
        "description": "Second of the two complementary RS-422 differential outputs of driver A, which is TRI-STATE when the A/B control input is low."
      },
      {
        "number": "4",
        "name": "A/B CONTROL",
        "type": "input",
        "description": "Output control input shared by drivers A and B; high enables their outputs and low puts them in TRI-STATE (high impedance)."
      },
      {
        "number": "5",
        "name": "OUTPUTS B (1)",
        "type": "tri_state",
        "description": "First of the two complementary RS-422 differential outputs of driver B, which is TRI-STATE when the A/B control input is low."
      },
      {
        "number": "6",
        "name": "OUTPUTS B (2)",
        "type": "tri_state",
        "description": "Second of the two complementary RS-422 differential outputs of driver B, which is TRI-STATE when the A/B control input is low."
      },
      {
        "number": "7",
        "name": "INPUT B",
        "type": "input",
        "description": "Driver B TTL/CMOS input, with input range 0 V to VCC and protected by ESD diodes to VCC and ground."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "9",
        "name": "INPUT C",
        "type": "input",
        "description": "Driver C TTL/CMOS input, with input range 0 V to VCC and protected by ESD diodes to VCC and ground."
      },
      {
        "number": "10",
        "name": "OUTPUTS C (1)",
        "type": "tri_state",
        "description": "First of the two complementary RS-422 differential outputs of driver C, which is TRI-STATE when the C/D control input is low."
      },
      {
        "number": "11",
        "name": "OUTPUTS C (2)",
        "type": "tri_state",
        "description": "Second of the two complementary RS-422 differential outputs of driver C, which is TRI-STATE when the C/D control input is low."
      },
      {
        "number": "12",
        "name": "C/D CONTROL",
        "type": "input",
        "description": "Output control input shared by drivers C and D; high enables their outputs and low puts them in TRI-STATE (high impedance)."
      },
      {
        "number": "13",
        "name": "OUTPUTS D (1)",
        "type": "tri_state",
        "description": "First of the two complementary RS-422 differential outputs of driver D, which is TRI-STATE when the C/D control input is low."
      },
      {
        "number": "14",
        "name": "OUTPUTS D (2)",
        "type": "tri_state",
        "description": "Second of the two complementary RS-422 differential outputs of driver D, which is TRI-STATE when the C/D control input is low."
      },
      {
        "number": "15",
        "name": "INPUT D",
        "type": "input",
        "description": "Driver D TTL/CMOS input, with input range 0 V to VCC and protected by ESD diodes to VCC and ground."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Single 5 V supply, operating range 4.50 V to 5.50 V and absolute maximum -0.5 to 7.0 V."
      }
    ],
    "provenance": {
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        "pages": 9,
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        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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