ISL81487IBZ-T

{
  "schema_version": 1,
  "type": "component",
  "slug": "isl81487ibz-t",
  "title": "ISL81487IBZ-T",
  "brief": "RENESAS RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "interface",
    "isl81487ibz-t",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "ISL81487IBZ-T",
    "manufacturer": "RENESAS",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226509764980736",
    "parts": {
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      "footprint": "isl81487ibz-t.kicad_mod",
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      "model_3d_plain": "isl81487ibz-t-etched.glb",
      "model_3d_step": "isl81487ibz-t-etched.step",
      "model_3d_step_plain": "isl81487ibz-t.step",
      "lbr": "isl81487ibz-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C695280",
      "digikey": "20-ISL81487IBZ-TTR-ND",
      "mouser": "968-ISL81487IBZ-T"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T06:53:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "20-ISL81487IBZ-TTR-ND",
        "status": "found",
        "lifecycle": "Last Time Buy"
      },
      "mouser": {
        "pn": "968-ISL81487IBZ-T",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver output: RO is high when A exceeds B by at least 0.2V, low when A is 0.2V or more below B, and high when A and B are unconnected (floating)."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable: RO is enabled when RE is low and is high-impedance when RE is high."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable: the driver outputs Y and Z are enabled when DE is high and are high-impedance when DE is low."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input: a low on DI forces Y low and Z high, and a high on DI forces Y high and Z low."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection."
      },
      {
        "number": "6",
        "name": "A/Y",
        "type": "bidirectional",
        "description": "RS-485/422 noninverting receiver input (A) when DE is low and noninverting driver output (Y) when DE is high; the A/Y pin is rated from -8V to +12.5V."
      },
      {
        "number": "7",
        "name": "B/Z",
        "type": "bidirectional",
        "description": "RS-485/422 inverting receiver input (B) when DE is low and inverting driver output (Z) when DE is high; the B/Z pin is rated from -8V to +12.5V."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "System power supply input, 4.5V to 5.5V."
      }
    ],
    "provenance": {
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        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet lists the ISL81487IBZ as an 8 Ld SOIC (M8.15) and states that SOIC is also available i"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0837,
        "at": "2026-10-18T06:52:27"
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      "datasheet": {
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        "sha256": "0c06224e3295a277",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "RENESAS",
      "Package": "SOIC-8",
      "Category": "Interface",
      "Pins": "8"
    },
    "characteristics": {
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      "source": "datasheet",
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          "name": "Driver Differential VOUT (with load), RS-422",
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          "unit": "V",
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          "typ": 3,
          "max": null,
          "conditions": "R = 50 (RS-422), (Figure 1), Full",
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          "name": "Driver Differential VOUT (with load), RS-485",
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          "unit": "V",
          "min": 1.5,
          "typ": 2.3,
          "max": 5,
          "conditions": "R = 27 (RS-485), (Figure 1), Full",
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        },
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          "name": "Change in Magnitude of Driver Differential VOUT for Complementary Output States",
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          "name": "Input Current (A/Y, B/Z), VIN = 12V, VCC = 4.5 to 5.5V",
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        {
          "name": "Input Current (A/Y, B/Z), VIN = -7V, VCC = 4.5 to 5.5V",
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        {
          "name": "Input Current (A/Y, B/Z), VIN = 12V, VCC = 0V",
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          "name": "Input Current (A/Y, B/Z), VIN = -7V, VCC = 0V",
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          "name": "Receiver Differential Threshold Voltage",
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        {
          "name": "Receiver Output High Voltage",
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          "name": "Three-State (high impedance) Receiver Output Current",
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          "max": 1,
          "conditions": "0.4V ≤ VO ≤ 2.4V, Full",
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        {
          "name": "Receiver Input Resistance (ISL81483, ISL81487)",
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        {
          "name": "No-Load Supply Current, DE = VCC",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
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          "name": "No-Load Supply Current, DE = 0V",
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          "name": "Driver Short-Circuit Current, VO = High or Low",
          "symbol": "IOSD1",
          "kind": "electrical",
          "unit": "mA",
          "min": 35,
          "typ": null,
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          "conditions": "DE = VCC, -7V ≤ VY or VZ ≤ 12V, (Note 4), Full",
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        },
        {
          "name": "Receiver Short-Circuit Current",
          "symbol": "IOSR",
          "kind": "electrical",
          "unit": "mA",
          "min": 7,
          "typ": null,
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          "conditions": "0V ≤ VO ≤ VCC, Full",
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        },
        {
          "name": "Driver Input to Output Delay (ISL81487)",
          "symbol": "tPLH, tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 15,
          "typ": 24,
          "max": 50,
          "conditions": "RDIFF = 54, CL = 100pF, (Figure 2), Full",
          "source_page": 5,
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        },
        {
          "name": "Driver Output Skew (ISL81487)",
          "symbol": "tSKEW",
          "kind": "timing",
          "unit": "ns",
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          "max": 10,
          "conditions": "RDIFF = 54, CL = 100pF, (Figure 2), Full",
          "source_page": 5,
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        },
        {
          "name": "Driver Differential Rise or Fall Time (ISL81487)",
          "symbol": "tR, tF",
          "kind": "timing",
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          "min": 3,
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          "max": 25,
          "conditions": "RDIFF = 54, CL = 100pF, (Figure 2), Full",
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        {
          "name": "Driver Enable to Output High (ISL81487)",
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          "name": "Driver Enable to Output Low (ISL81487)",
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          "name": "Driver Disable from Output High (ISL81487)",
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          "name": "Receiver Input to Output Delay (ISL81487)",
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          "name": "Receiver Enable to Output High (ISL81487)",
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          "name": "Maximum Data Rate (ISL81487)",
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          "kind": "timing",
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          "name": "VCC to Ground",
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          "name": "Input Voltages DI, DE, RE",
          "symbol": "",
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          "typ": null,
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          "conditions": "",
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          "name": "Input/Output Voltages A/Y, B/Z",
          "symbol": "",
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          "typ": null,
          "max": 12.5,
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        {
          "name": "Output Voltage RO",
          "symbol": "",
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          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "ESD Rating HBM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": 7,
          "typ": null,
          "max": null,
          "conditions": "HBM per MIL-STD-883, Method 3015.7 (printed as >7kV)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature (Plastic Package)",
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          "unit": "°C",
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        {
          "name": "Maximum Storage Temperature Range",
          "symbol": "",
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          "min": -65,
          "typ": null,
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          "conditions": "",
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        {
          "name": "Maximum Lead Temperature (Soldering 10s)",
          "symbol": "",
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          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Soldering 10s (SOIC - lead tips only)",
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        {
          "name": "Supply Voltage VCC",
          "symbol": "VCC",
          "kind": "recommended_operating",
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          "min": 4.5,
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          "max": 5.5,
          "conditions": "Electrical specification test conditions",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Operating Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "ISL8XXXIX (industrial grade, applies to ISL81487IBZ)",
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        },
        {
          "name": "Thermal Resistance, Junction to Ambient, 8 Ld SOIC",
          "symbol": "JA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 170,
          "max": null,
          "conditions": "Typical, Note 1: mounted on low effective thermal conductivity test board in free air",
          "source_page": 4,
          "source": "datasheet"
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      ]
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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