SN65HVD78EIM

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  "slug": "sn65hvd78eim",
  "title": "SN65HVD78EIM",
  "brief": "HGSEMI RS-485 / RS-422 ICs, SOP-8. 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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    "interface",
    "sn65hvd78eim",
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  "component": {
    "mpn": "SN65HVD78EIM",
    "manufacturer": "HGSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8760109369319141376",
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    "distributor_links": {
      "lcsc": "C725336"
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      "checked_at": "2026-10-17T14:12:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver output: with RE low, RO is high when A-B is not less than 200 mV and low when A-B is not greater than -200 mV (the failsafe section and function table instead give -50 mV as the high threshold, so this value should be checked)."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable, active low: RO is enabled when RE is low and high-impedance when RE is high; RE high together with DE low puts the device into low-power shutdown."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable: the driver outputs are active when DE is high and high-impedance when DE is low, and DE uses a hot-plug input structure."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input: with DE high, a low on DI drives A low and B high, and a high on DI drives A high and B low."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Receiver non-inverting input and driver non-inverting output on the RS-485 bus, with ±16 kV IEC 61000-4-2 ESD protection."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Receiver inverting input and driver inverting output on the RS-485 bus, with ±16 kV IEC 61000-4-2 ESD protection."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, 3.15 V to 3.45 V; a 0.1 µF capacitor should be connected to ground."
      }
    ],
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        "guard_notes": [
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  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOP-8",
      "Category": "Interface",
      "Pins": "8"
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          "name": "Input current (A, B) full duplex",
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          "name": "Input current (A, B) full duplex",
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          "kind": "electrical",
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          "name": "Output leakage current (Y, Z) full duplex",
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          "kind": "electrical",
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          "name": "Output leakage current (Y, Z) full duplex",
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          "name": "Driver short-circuit output current",
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          "name": "Driver short-circuit output current",
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          "name": "Driver short-circuit foldback output current",
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          "name": "Driver short-circuit foldback output current",
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          "name": "Receiver differential threshold voltage",
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          "kind": "electrical",
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          "name": "Receiver output low voltage",
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          "name": "Receiver tri-state output current",
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