main
Ray Set visibility: public 1be0b88 17d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "max490esa",
  "title": "MAX490ESA",
  "brief": "XBLW 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",
  "tags": [
    "component",
    "interface",
    "max490esa",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MAX490ESA",
    "manufacturer": "XBLW",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603380675009658880",
    "parts": {
      "symbol": "max490esa.kicad_sym",
      "footprint": "max490esa.kicad_mod",
      "model_3d": "max490esa-hero.glb",
      "model_3d_plain": "max490esa-etched.glb",
      "model_3d_step": "max490esa-etched.step",
      "model_3d_step_plain": "max490esa.step",
      "lbr": "max490esa.lbr"
    },
    "distributor_links": {
      "lcsc": "C22451413"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T23:54:26Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply pin; the datasheet specifies 3.0 V ≦ VCC ≦ 5.5 V (absolute maximum 7 V)."
      },
      {
        "number": "2",
        "name": "RO",
        "type": "output",
        "description": "Receiver output: goes high when A-B ≥ -50 mV and low when A-B ≤ -200 mV, and is held high when the receiver input is open or shorted."
      },
      {
        "number": "3",
        "name": "DI",
        "type": "input",
        "description": "Driver input: a low level forces Y low and Z high, and a high level forces Y high and Z low; absolute range is -0.3 V to VCC+0.3 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device."
      },
      {
        "number": "5",
        "name": "Y",
        "type": "output",
        "description": "Driver non-inverting output that follows DI; the driver output voltage range is limited to -8 V to +13 V per the absolute maximum ratings."
      },
      {
        "number": "6",
        "name": "Z",
        "type": "output",
        "description": "Driver inverting output, complementary to Y; the driver output voltage range is limited to -8 V to +13 V per the absolute maximum ratings."
      },
      {
        "number": "7",
        "name": "B",
        "type": "input",
        "description": "Receiver inverting input; the receiver input voltage range is -8 V to +13 V with a nominal input impedance of 96 kΩ."
      },
      {
        "number": "8",
        "name": "A",
        "type": "input",
        "description": "Receiver non-inverting input; the receiver input voltage range is -8 V to +13 V with a nominal input impedance of 96 kΩ."
      }
    ],
    "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: The SOP-8 pinout is taken from the 'Pin Description' table on page 3 (full-duplex pin list); the ord; The DC characteristics table (page 4) references DE, /RE enable inputs, but the SOP-8 pin list does ; The 'Operating temperature range' text on page 3 is garbled in the extracted text (reads as '0 ~ +7 "
        ],
        "pages_sent": 10,
        "cost_usd": 0.0401,
        "at": "2026-10-17T23:52:26"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603380675009658880",
        "pages": 10,
        "sha256": "a5821d8ad0c2488e",
        "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": "max490esa.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.75
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "max490esa-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "26751b3dd2905c6f7670c5482d17aebeedd35729aa72a926b47803c495320a52",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "XBLW",
      "Package": "SOP-8",
      "Category": "Interface",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a5821d8ad0c2488eb788bc34d3b8c18774f9d0c077637224e2d64393e9e12122",
      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Differential driver output (no load)",
          "symbol": "VOD1",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": 5,
          "conditions": "Figure 4",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Differential driver output (RS-422)",
          "symbol": "VOD2",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 5,
          "conditions": "Figure 4, R=50Ω (RS-422)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Differential driver output (RS-485)",
          "symbol": "VOD2",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": 5,
          "conditions": "Figure 4, R=27Ω (RS-485)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Amplitude change in differential output voltage",
          "symbol": "∆VOD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "Figure 4, R=50Ω or R=27Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Drive common mode output voltage",
          "symbol": "VOC",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": 3,
          "conditions": "Figure 4, R=50Ω or R=27Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Amplitude change in common mode voltage",
          "symbol": "∆VOC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "Figure 4, R=50Ω or R=27Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input high voltage DE, DI, /RE",
          "symbol": "VIH1",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage DE, DI, /RE",
          "symbol": "VIL1",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "DI input lag",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input current (A,B) full duplex",
          "symbol": "IIN4",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "DE=GND, VCC=GND or VIN=12V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver differential threshold voltage",
          "symbol": "VTH",
          "kind": "electrical",
          "unit": "mV",
          "min": -200,
          "typ": -110,
          "max": -50,
          "conditions": "-7V≦VCM≦12V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver input lag",
          "symbol": "ΔVTH",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver output low voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IO=4mA, VID=-200mV",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Three state output current at receiver end",
          "symbol": "IOZR",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "0.4V≦VO≦2.4V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver input impedance",
          "symbol": "RIN",
          "kind": "electrical",
          "unit": "KΩ",
          "min": null,
          "typ": 96,
          "max": null,
          "conditions": "-7V≦VCM≦12V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply current (static working current)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 270,
          "max": 600,
          "conditions": "No load, DI=0 or VCC",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD electrostatic protection (HBM)",
          "symbol": "ESD HBM",
          "kind": "electrical",
          "unit": "V",
          "min": 3000,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Drive input to output (high)",
          "symbol": "TDPLH",
          "kind": "electrical",
          "unit": "ns",
          "min": 250,
          "typ": 720,
          "max": 900,
          "conditions": "Figures 5 and 6, RDIFF=54Ω, CL1=CL2=100p",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Drive input to output (low)",
          "symbol": "TDPHL",
          "kind": "electrical",
          "unit": "ns",
          "min": 250,
          "typ": 720,
          "max": 900,
          "conditions": "Figures 5 and 6, RDIFF=54Ω, CL1=CL2=100p",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Drive output skew |tDPLH - tDPHL|",
          "symbol": "TDHKEW",
          "kind": "timing",
          "unit": "ns",
          "min": -100,
          "typ": -3,
          "max": 100,
          "conditions": "Figures 5 and 6, RDIFF=54Ω, CL1=CL2=100p",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Drive up or down time",
          "symbol": "tDR, tDF",
          "kind": "timing",
          "unit": "ns",
          "min": 200,
          "typ": 530,
          "max": 750,
          "conditions": "Figures 5 and 6, RDIFF=54Ω, CL1=CL2=100p",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum data rate",
          "symbol": "FMAX",
          "kind": "timing",
          "unit": "M",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Receiver input to output (low to high)",
          "symbol": "TRPLH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 127,
          "max": 200,
          "conditions": "Figures 7 and 8, |VID| ≥ 2.0V, rise and fall times ≤ 15 ns",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Receiver input to output (high to low)",
          "symbol": "TRPHL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 127,
          "max": 200,
          "conditions": "Figures 7 and 8, |VID| ≥ 2.0V, rise and fall times ≤ 15 ns",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Differential receiver skew |tDPLH - tDPHL|",
          "symbol": "TRSKD",
          "kind": "timing",
          "unit": "ns",
          "min": -30,
          "typ": 3,
          "max": 30,
          "conditions": "Figures 7 and 8, |VID| ≥ 2.0V, rise and fall times ≤ 15 ns",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage (absolute maximum)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Drive input voltage",
          "symbol": "DI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Receiver output voltage",
          "symbol": "RO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Continuous power consumption",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 471,
          "conditions": "SOP-8 package",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soldering temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 245,
          "conditions": "10 s",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "max490esa"
  ],
  "discovery_pitch": "MAX490ESA (XBLW) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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  "visibility": {
    "public": true
  }
}