STR485LVQT

{
  "schema_version": 1,
  "type": "component",
  "slug": "str485lvqt",
  "title": "STR485LVQT",
  "brief": "STMicroelectronics RS-485 / RS-422 ICs, DFN-10(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "str485lvqt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "STR485LVQT",
    "manufacturer": "STMicroelectronics",
    "package": "DFN-10(3x3)",
    "pin_count": 11,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589839034697879552",
    "parts": {
      "symbol": "str485lvqt.kicad_sym",
      "footprint": "str485lvqt.kicad_mod",
      "model_3d": "str485lvqt-hero.glb",
      "model_3d_plain": "str485lvqt.glb",
      "model_3d_step": "str485lvqt-etched.step",
      "model_3d_step_plain": "str485lvqt.step",
      "lbr": "str485lvqt.lbr"
    },
    "distributor_links": {
      "lcsc": "C2970105",
      "digikey": "497-18335-2-ND",
      "mouser": "511-STR485LVQT"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T01:22:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-18335-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-STR485LVQT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VL",
        "type": "power_in",
        "description": "Logic supply for the logic I/O signals, specified from 1.65 V to 3.6 V, and must always be less than or equal to VCC."
      },
      {
        "number": "2",
        "name": "R",
        "type": "output",
        "description": "Receiver data output, which goes to a guaranteed high state when the bus is open, shorted or idle (fail-safe), with output current limited to -12 mA to 12 mA absolute maximum."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver enable input: high enables the driver outputs A and B, while low or open disables them (high impedance), with input levels referenced to VL (VIH min 0.7×VL, VIL max 0.3×VL) and an internal 2.5 MΩ pull-down to GND through 150 Ω."
      },
      {
        "number": "4",
        "name": "nRE",
        "type": "input",
        "description": "Receiver enable input, active low: low enables receiver output R, high or open disables it (high impedance), with an internal 2.5 MΩ pull-up to VCC through 150 Ω."
      },
      {
        "number": "5",
        "name": "D",
        "type": "input",
        "description": "Transmission data input that sets the driven bus state when the driver is enabled, with input levels referenced to VL (VIH min 0.7×VL, VIL max 0.3×VL)."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Network ground reference; all voltages except the differential voltage are referenced to this terminal."
      },
      {
        "number": "7",
        "name": "SLR",
        "type": "input",
        "description": "Slew rate select: low (GND or open) selects 20 Mbps, high (VL) selects 250 kbps, and it defaults to 20 Mbps if left floating although floating is not recommended."
      },
      {
        "number": "8",
        "name": "A",
        "type": "bidirectional",
        "description": "Digital bus I/O line A; operating input range is -7 V to 12 V with absolute maximum range of -13 V to 13 V."
      },
      {
        "number": "9",
        "name": "B",
        "type": "bidirectional",
        "description": "Digital bus I/O line B, driven opposite to A per the driver truth table; operating input range is -7 V to 12 V with absolute maximum range of -13 V to 13 V."
      },
      {
        "number": "10",
        "name": "VCC",
        "type": "power_in",
        "description": "Bus supply for the A and B bus lines, specified from 3 V to 3.6 V (absolute maximum 4.8 V), and must be greater than or equal to VL."
      },
      {
        "number": "11",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 4 is printed as 'nRE' in Table 1 (the pin table) but as 'RE' in Figure 1, the truth tables and t; The DFN10 outline has exposed-pad dimensions (D2, E2) and a thermal-pad note, but the datasheet does; Pin numbers, names and I/O roles come from Table 1 and the Figure 1 pin layout is only graphical in ",
          "exposed pad 11 added from the footprint",
          "1/11 pins cited to the wrong page (name found elsewhere): ['10:VCC@p6']"
        ],
        "pages_sent": 26,
        "cost_usd": 0.0573,
        "at": "2026-10-11T01:22:10"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589839034697879552",
        "pages": 26,
        "sha256": "9e2afeea0702652c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "str485lvqt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3,
          2.98,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "738e2eb45860c11759f8e4f44ab26932b7c15e4d5d6c8c9ac22ae866a3e38711",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "str485lvqt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3,
          2.98,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7e1e00fcf5ca1921d5e59ae98dedb970fb2c41bcf85a644c4c6586b13edab9ed",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "DFN-10(3x3)",
      "Category": "Interface",
      "Pins": "11"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "str485lvqt"
  ],
  "discovery_pitch": "STR485LVQT (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "str485lvqt.kicad_sym",
    "str485lvqt.kicad_mod",
    "str485lvqt.glb",
    "str485lvqt.step",
    "str485lvqt.lbr",
    "docs/hero.png",
    "docs/str485lvqt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "str485lvqt-hero.glb",
    "str485lvqt-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}