MAX485EPA

{
  "schema_version": 1,
  "type": "component",
  "slug": "max485epa",
  "title": "MAX485EPA",
  "brief": "lingxingic RS-485 / RS-422 ICs, DIP-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",
    "max485epa",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MAX485EPA",
    "manufacturer": "lingxingic",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603388675938275328",
    "parts": {
      "symbol": "max485epa.kicad_sym",
      "footprint": "max485epa.kicad_mod",
      "model_3d": "max485epa-hero.glb",
      "model_3d_plain": "max485epa-etched.glb",
      "model_3d_step": "max485epa-etched.step",
      "model_3d_step_plain": "max485epa.step",
      "lbr": "max485epa.lbr"
    },
    "distributor_links": {
      "lcsc": "C32710645"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T05:59:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "R",
        "type": "output",
        "description": "Receiver output: driven high when VID ≥ VIT+ and low when VID ≤ VIT- with /RE low, and high-impedance when /RE is high."
      },
      {
        "number": "2",
        "name": "/RE",
        "type": "input",
        "description": "Active-low receiver enable: the receiver is enabled when /RE is low, and R goes high-impedance when /RE is high."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver enable: the driver is enabled when DE is high, and both A and B go high-impedance when DE is low."
      },
      {
        "number": "4",
        "name": "D",
        "type": "input",
        "description": "Driver input: with DE high, a high on D drives A high and B low, and a low on D drives A low and B high; the recommended high-level input is 2 V to VCC and the low-level input is 0 V to 0.8 V."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting RS-485 bus terminal shared by the receiver non-inverting input and the driver non-inverting output; bus common-mode range is -7 V to 12 V."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting RS-485 bus terminal shared by the receiver inverting input and the driver inverting output; bus common-mode range is -7 V to 12 V."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin; recommended supply range is 3 V to 5.5 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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 DIP-8 pin numbering and names are taken from the pin-description table in section 2.2 (page 4). ; Pin 4 (D) and pins 6–7 (A, B) descriptions combine the function table with the recommended-condition"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0416,
        "at": "2026-10-16T05:59:23"
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      "datasheet": {
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        "pages": 13,
        "sha256": "657088f4e3af8fd6",
        "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"
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    "models_3d": [
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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          9.27,
          6.98
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "lingxingic",
      "Package": "DIP-8",
      "Category": "Interface",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "657088f4e3af8fd6d5a68fbb19a708bacb8a3a127fa7f26e3e4fd6b08f101ab7",
      "rows": [
        {
          "name": "电源电压 (supply voltage)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输入电压 (input voltage, D, DE, /RE)",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输入/输出电压 (input/output voltage, A, B)",
          "symbol": "VI/O",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "A, B pins",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输入/输出电压 (input/output voltage, R)",
          "symbol": "VI/O",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "R pin",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM (bus pins A, B)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "HBM mode, bus pins A, B",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "ESD HBM (all other pins)",
          "symbol": "",
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          "conditions": "HBM mode, all other pins",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "电源电压 (supply voltage)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "共模电压 (common-mode voltage)",
          "symbol": "VCM",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -7,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "高电平输入电压 (high-level input voltage)",
          "symbol": "VIH",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "driver input, driver enable and receiver enable",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "低电平输入电压 (low-level input voltage)",
          "symbol": "VIL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "差分输入电压 (differential input voltage)",
          "symbol": "VID",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -7,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "差分负载电阻 (differential load resistance)",
          "symbol": "RL",
          "kind": "recommended_operating",
          "unit": "Ω",
          "min": 54,
          "typ": null,
          "max": null,
          "conditions": "printed as >54 Ω",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "工作温度 (operating temperature)",
          "symbol": "Tamb",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "贮存温度 (storage temperature)",
          "symbol": "Tstg",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "工作电压 (operating voltage)",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "静态电流 (static supply current)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.9,
          "max": 2.35,
          "conditions": "DE=VCC, /RE=GND, no load",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "静态电流 (static supply current)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.47,
          "max": 0.6,
          "conditions": "DE=VCC, /RE=VCC, no load",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "静态电流 (static supply current)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.7,
          "max": 2.05,
          "conditions": "DE=GND, /RE=GND, no load",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "静态电流 (static supply current)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.001,
          "conditions": "DE=GND, /RE=VCC, no load",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "差分输出电压幅度 (differential output voltage magnitude)",
          "symbol": "|VOD|",
          "kind": "electrical",
          "unit": "V",
          "min": 2.1,
          "typ": 3.5,
          "max": null,
          "conditions": "RL=60Ω @VA&VB(-7～12V), VCC=4.5～5.5V, Fig 1A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "差分输出电压幅度 (differential output voltage magnitude)",
          "symbol": "|VOD|",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": 2.2,
          "max": null,
          "conditions": "RL=60Ω @VA&VB(-7～12V), VCC=3.0～3.6V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "差分输出电压幅度 (differential output voltage magnitude)",
          "symbol": "|VOD|",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": 3.6,
          "max": null,
          "conditions": "RL=54Ω, VCC=5V, Fig 1B",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "差分输出电压幅度 (differential output voltage magnitude)",
          "symbol": "|VOD|",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": 1.9,
          "max": null,
          "conditions": "RL=54Ω, VCC=3V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "差分输出电压幅度 (differential output voltage magnitude)",
          "symbol": "|VOD|",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": 4,
          "max": null,
          "conditions": "RL=100Ω, VCC=5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "差分输出电压幅度 (differential output voltage magnitude)",
          "symbol": "|VOD|",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": 2.3,
          "max": null,
          "conditions": "RL=100Ω, VCC=3V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "差分输出电压幅度差值 (differential output voltage magnitude change)",
          "symbol": "∆|VOD|",
          "kind": "electrical",
          "unit": "mV",
          "min": -50,
          "typ": 2,
          "max": 50,
          "conditions": "RL=54Ω, VCC=5V, CL=50pF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "稳态共模输出电压 (steady-state common-mode output voltage)",
          "symbol": "VOC(SS)",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": 3,
          "conditions": "centre of two 27Ω load resistors",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "短路输出电流 (short-circuit output current)",
          "symbol": "|IOS|",
          "kind": "electrical",
          "unit": "mA",
          "min": -250,
          "typ": 110,
          "max": 250,
          "conditions": "VA/VB: -7～12V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "总线引脚 A, B 短路电流 (bus pins A, B short-circuit current)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "正向差分输入电压阈值 (positive differential input threshold)",
          "symbol": "VIT+",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": -120,
          "max": -40,
          "conditions": "VA/VB: -7～12V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "负向差分输入电压阈值 (negative differential input threshold)",
          "symbol": "VIT-",
          "kind": "electrical",
          "unit": "mV",
          "min": -220,
          "typ": -170,
          "max": null,
          "conditions": "VA/VB: -7～12V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "输出高电平电压 (output high voltage)",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3,
          "typ": 4.6,
          "max": null,
          "conditions": "IOH=-8mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "输出低电平电压 (output low voltage)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IOL=8mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "高阻输出电流 (high-impedance output current)",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "uA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VO=0/VCC, /RE=VCC",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "总线输入电流 (bus input current, driver disabled)",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 120,
          "conditions": "VCC=4.5～5.5 or VCC=0, DE=0V; VI=12V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "总线输入电流 (bus input current, driver disabled)",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "uA",
          "min": -110,
          "typ": null,
          "max": null,
          "conditions": "VCC=4.5～5.5 or VCC=0, DE=0V; VI=-7V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "总线输入阻抗 (bus input impedance)",
          "symbol": "RA/RB",
          "kind": "electrical",
          "unit": "KΩ",
          "min": 96,
          "typ": null,
          "max": null,
          "conditions": "VA=-7V, VB=12V and VA=12V, VB=-7V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "逻辑输入高电压 (logic input high voltage)",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "DI, DE, /RE",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "逻辑输入低电压 (logic input low voltage)",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "输入漏电 (input leakage current)",
          "symbol": "Ii",
          "kind": "electrical",
          "unit": "uA",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "最大数据速率 (maximum data rate)",
          "symbol": "fMAX",
          "kind": "electrical",
          "unit": "Mbps",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VOD≥±1.5V, RL=54Ω, CL=100pF (Fig 2)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "关闭时间 (driver disable time, high)",
          "symbol": "tPHZ",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 17,
          "max": 50,
          "conditions": "CL=15pF, SW2 closed, Fig 4",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "关闭时间 (driver disable time, low)",
          "symbol": "tPLZ",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 20,
          "max": 50,
          "conditions": "CL=15pF, SW1 closed",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "传输延迟 (driver propagation delay)",
          "symbol": "tPHL, tPLH",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 15,
          "max": 30,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "驱动器通道间偏斜 (driver pulse skew)",
          "symbol": "|tPHL- tPLH| tSK(P)",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "启动时间 (driver enable time, high)",
          "symbol": "tPZH",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 36,
          "max": 45,
          "conditions": "CL=100pF，RX 使能，SW2 闭合",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "启动时间 (driver enable time, high, RX disabled)",
          "symbol": "tPZH",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 2400,
          "max": 3200,
          "conditions": "CL=100pF，RX 禁用，SW2 闭合",
          "source_page": 7,
          "source": "datasheet"
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