main
Ray Set visibility: public 931c39a 2d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "max481esa-t",
  "title": "MAX481ESA+T",
  "brief": "Maxim Integrated Interface - Specialized, 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": [
    "component",
    "communication interface chip-uart-485-232",
    "max481esa+t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MAX481ESA+T",
    "manufacturer": "Maxim Integrated",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "Interface - Specialized",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/max1487e-max491e.pdf",
    "parts": {
      "symbol": "max481esa-t.kicad_sym",
      "footprint": "max481esa-t.kicad_mod",
      "model_3d": "max481esa-t-hero.glb",
      "model_3d_plain": "max481esa-t-etched.glb",
      "model_3d_step": "max481esa-t-etched.step",
      "model_3d_step_plain": "max481esa-t.step",
      "lbr": "max481esa-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C3235179",
      "digikey": "MAX481ESA+TTR-ND",
      "mouser": "700-MAX481ESAT"
    },
    "distributor_check": {
      "checked_at": "2026-10-29T00:11:38Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MAX481ESA+TTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "700-MAX481ESAT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver output: RO goes high if A > B by 200mV and goes low if A < B by 200mV."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable (active low): 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 (A and B on this part) 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 output A low and B high, and a high on DI forces A high and B low."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Noninverting receiver input and noninverting driver output; the receiver input impedance is 12kΩ standard (48kΩ for the 1/4-unit-load MAX487E/MAX1487E class), and the datasheet states a fail-safe logic-high RO when the input is open."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting receiver input and inverting driver output; it is paired with A for the differential RS-485/RS-422 bus."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply: 4.75V ≤ VCC ≤ 5.25V."
      }
    ],
    "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 MPN MAX481ESA+T is not listed in the datasheet. The closest ordering entry is MAX481EESA (8 SO, ; The pin-table text was scrambled during extraction, so the 8-pin column mapping was cross-checked ag; Pin 6 and pin 7 are 'A' and 'B' per the datasheet, but the description text notes that A and B are t"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0961,
        "at": "2026-10-29T00:11:20"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/max1487e-max491e.pdf",
        "pages": 16,
        "sha256": "273f114f0ec895b5",
        "source_tier": "mfr"
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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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        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "max481esa-t-etched.step",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "Maxim Integrated",
      "Package": "SOIC-8",
      "Category": "Communication Interface Chip/UART/485/232",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
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          "conditions": "Positive supply, 4.75V ≤ VCC ≤ 5.25V",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Operating temperature range, E grade (MAX4__E__)",
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          "unit": "°C",
          "min": -40,
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        {
          "name": "Storage temperature range",
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          "min": -65,
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        {
          "name": "Lead temperature (soldering)",
          "symbol": "",
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          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Soldering, 10 sec",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Driver common-mode output voltage",
          "symbol": "VOC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "R = 27Ω or 50Ω, Figure 8",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Change in magnitude of driver differential output voltage for complementary output states",
          "symbol": "ΔVOD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
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          "max": 0.2,
          "conditions": "R = 27Ω or 50Ω, Figure 8",
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        {
          "name": "Change in magnitude of driver common-mode output voltage for complementary output states",
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          "conditions": "R = 27Ω or 50Ω, Figure 8",
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        {
          "name": "Input high voltage",
          "symbol": "VIH",
          "kind": "electrical",
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          "conditions": "DE, DI, RE",
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        {
          "name": "Input low voltage",
          "symbol": "VIL",
          "kind": "electrical",
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          "conditions": "DE, DI, RE",
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        {
          "name": "Input current",
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          "min": -2,
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          "name": "Differential driver output (no load)",
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        {
          "name": "Receiver differential threshold voltage",
          "symbol": "VTH",
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          "min": -0.2,
          "typ": null,
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          "conditions": "-7V ≤ VCM ≤ 12V",
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          "name": "Receiver input resistance",
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          "conditions": "-7V ≤ VCM ≤ 12V",
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          "source": "datasheet"
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          "name": "Receiver output high voltage",
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          "min": 3.5,
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          "conditions": "IO = -4mA, VID = 200mV",
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          "name": "Receiver output low voltage",
          "symbol": "VOL",
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          "conditions": "IO = 4mA, VID = -200mV",
          "source_page": 2,
          "source": "datasheet"
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          "name": "Three-state (high impedance) output current at receiver",
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          "kind": "electrical",
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          "conditions": "0.4V ≤ VO ≤ 2.4V",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Driver short-circuit current, VO = Low",
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          "kind": "electrical",
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          "conditions": "-7V ≤ VO ≤ 12V (Note 4)",
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          "min": 35,
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          "conditions": "-7V ≤ VO ≤ 12V (Note 4)",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Supply current in shutdown",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
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          "max": 10,
          "conditions": "DE = 0V, RE = VCC",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Driver input to output (tPLH)",
          "symbol": "tPLH",
          "kind": "timing",
          "unit": "ns",
          "min": 10,
          "typ": 40,
          "max": 60,
          "conditions": "Figures 10 and 12, RDIFF = 54Ω, CL1 = CL2 = 100pF",
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          "name": "Driver input to output (tPHL)",
          "symbol": "tPHL",
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          "name": "Time to shutdown",
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    "email": "[email protected]"
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