HT6508ARZ

{
  "schema_version": 1,
  "type": "component",
  "slug": "ht6508arz",
  "title": "HT6508ARZ",
  "brief": "HTCSEMI RS-485 / RS-422 ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "ht6508arz"
  ],
  "component": {
    "mpn": "HT6508ARZ",
    "manufacturer": "HTCSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2202211730_HTCSEMI-HT6508ARZ_C2976651.pdf",
    "parts": {
      "symbol": "ht6508arz.kicad_sym",
      "footprint": "ht6508arz.kicad_mod",
      "model_3d": "ht6508arz-etched.glb",
      "model_3d_plain": "ht6508arz.glb",
      "model_3d_step": "ht6508arz-etched.step",
      "model_3d_step_plain": "ht6508arz.step",
      "lbr": "ht6508arz.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver Output. Logic-level output of the differential receiver comparing A and B. High when A-B > +0.2V, low when A-B < -0.2V; fail-safe high when inputs are open. High-impedance when RE is high. VOH ≥ 2.5V at Io = -1.5mA; VOL ≤ 0.4V at Io = 2.5mA."
      },
      {
        "number": "2",
        "name": "/RE",
        "type": "input",
        "description": "Receiver Output Enable, active low. Drive low to enable the receiver output RO; drive high to place RO in high-impedance state. TTL/CMOS compatible input (VIH ≥ 2.0V, VIL ≤ 0.8V)."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver Output Enable, active high. Drive high to enable driver outputs A and B; drive low to place driver outputs in high-impedance state. TTL/CMOS compatible input (VIH ≥ 2.0V, VIL ≤ 0.8V)."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver Input. Logic-level input to the differential driver. When DE=1: DI=0 forces A=0/B=1, DI=1 forces A=1/B=0. TTL/CMOS compatible (VIH ≥ 2.0V, VIL ≤ 0.8V)."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference. All voltages are referenced to this pin."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting Driver Output / Non-inverting Receiver Input (RS-485/RS-422 bus line A). Withstands -7V to +12V common-mode; input resistance ≥12kΩ. Short-circuit current limited to 250mA over -7V ≤ Vo ≤ 12V; protected by thermal shutdown."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting Driver Output / Inverting Receiver Input (RS-485/RS-422 bus line B). Withstands -7V to +12V common-mode; input resistance ≥12kΩ. Short-circuit current limited to 250mA over -7V ≤ Vo ≤ 12V; protected by thermal shutdown."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input. Single 3.3V ±0.3V supply. No-load quiescent supply current typically 120µA (RE=0V, DE=0V). Absolute maximum 7V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2202211730_HTCSEMI-HT6508ARZ_C2976651.pdf",
        "pages": 8,
        "sha256": "0ee06570b6c5b4de",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ht6508arz.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ht6508arz-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2b02728dd2a993ac55fd5871f445a7a77af20cdb06c9d4e8f8342018f7529050",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HTCSEMI",
      "Package": "SOP-8",
      "Category": "Interface",
      "Pins": "8"
    }
  },
  "variants": [
    {
      "mpn": "HT6508ARZ",
      "kind": "packaging"
    },
    {
      "mpn": "HT6508ARZANZ",
      "kind": "packaging"
    },
    {
      "mpn": "HT6508ARZARMZ",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ht6508arz"
  ],
  "discovery_pitch": "HT6508ARZ (HTCSEMI) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ht6508arz.kicad_sym",
    "ht6508arz.kicad_mod",
    "ht6508arz.glb",
    "ht6508arz.step",
    "ht6508arz.lbr",
    "docs/hero.png",
    "docs/ht6508arz-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T22:04:49.404Z"
}