ADM1491EBRMZ

{
  "slug": "adm1491ebrmz",
  "version": "0.1.0",
  "type": "component",
  "description": "Analog Devices RS-485/RS-422 ICs, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "adm1491ebrmz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "adm1491ebrmz.kicad_sym",
    "adm1491ebrmz.kicad_mod",
    "adm1491ebrmz.glb",
    "adm1491ebrmz.step",
    "adm1491ebrmz.lbr",
    "docs/hero.png",
    "docs/adm1491ebrmz-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "adm1491ebrmz-hero.glb",
    "adm1491ebrmz-hero.overlay.json",
    "adm1491ebrmz-etched.glb"
  ],
  "component": {
    "mpn": "ADM1491EBRMZ",
    "manufacturer": "Analog Devices",
    "package": "MSOP-10",
    "pin_count": 10,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "RS-485/RS-422 ICs",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1490E_1491E.pdf",
    "parts": {
      "symbol": "adm1491ebrmz.kicad_sym",
      "footprint": "adm1491ebrmz.kicad_mod",
      "model_3d": "adm1491ebrmz-hero.glb",
      "model_3d_plain": "adm1491ebrmz-etched.glb",
      "model_3d_step": "adm1491ebrmz-etched.step",
      "model_3d_step_plain": "adm1491ebrmz.step",
      "lbr": "adm1491ebrmz.lbr"
    },
    "distributor_links": {
      "lcsc": "C657960",
      "digikey": "505-ADM1491EBRMZ-ND",
      "mouser": "584-ADM1491EBRMZ"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T20:55:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-ADM1491EBRMZ-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-ADM1491EBRMZ",
        "status": "found",
        "lifecycle": "Restricted Availability"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver output; high impedance when RE is high."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable; a low level enables the receiver output, a high level places it in high impedance."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable; a logic high enables the differential driver outputs, a logic low places them in high impedance."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input; with driver enabled, a logic low forces Y low and Z high while a logic high forces Y high and Z low."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "6",
        "name": "Y",
        "type": "output",
        "description": "Noninverting driver output Y, ESD protected to ±8 kV HBM."
      },
      {
        "number": "7",
        "name": "Z",
        "type": "output",
        "description": "Inverting driver output Z, ESD protected to ±8 kV HBM."
      },
      {
        "number": "8",
        "name": "B",
        "type": "input",
        "description": "Inverting receiver input B, ESD protected to ±8 kV HBM with 12 kΩ minimum input resistance."
      },
      {
        "number": "9",
        "name": "A",
        "type": "input",
        "description": "Noninverting receiver input A, ESD protected to ±8 kV HBM with 12 kΩ minimum input resistance."
      },
      {
        "number": "10",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply, 5 V ± 5% (4.75 V to 5.25 V)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Table 5 describes the driver enable and DI in terms of pins A and B, but the pin table and truth tab"
        ],
        "pages_sent": 16,
        "cost_usd": 0.1271,
        "at": "2026-10-30T20:55:13"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1490E_1491E.pdf",
        "pages": 16,
        "sha256": "74a5d8439f987121",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "adm1491ebrmz.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "adm1491ebrmz-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "405bb406580262d844186a8d2ca3fb6032eed385aaf5351e0c5778cd1b08e67f",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "RM-10",
      "source_page": 14,
      "D": {
        "nom_mm": 3.0,
        "range_mm": [
          2.9,
          3.1
        ]
      },
      "E1": {
        "nom_mm": 3.0,
        "range_mm": [
          2.9,
          3.1
        ]
      },
      "E": {
        "nom_mm": 4.9,
        "range_mm": [
          4.65,
          5.15
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.1,
        "range_mm": [
          null,
          1.1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "adm1491ebrmz.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}