LAN9512-JZX

{
  "schema_version": 1,
  "type": "component",
  "slug": "lan9512-jzx",
  "title": "LAN9512-JZX",
  "brief": "Microchip Tech Ethernet ICs, QFN-64-EP(9x9). 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 ics",
    "lan9512-jzx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LAN9512-JZX",
    "manufacturer": "Microchip Tech",
    "package": "QFN-64-EP(9x9)",
    "pin_count": 65,
    "category": "Interface ICs",
    "subcategory": "Ethernet ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/8cb06fb3c744c668949636bf18ea304b.pdf",
    "parts": {
      "symbol": "lan9512-jzx.kicad_sym",
      "footprint": "lan9512-jzx.kicad_mod",
      "model_3d": "lan9512-jzx-hero.glb",
      "model_3d_plain": "lan9512-jzx-etched.glb",
      "model_3d_step": "lan9512-jzx-etched.step",
      "model_3d_step_plain": "lan9512-jzx.step",
      "lbr": "lan9512-jzx.lbr"
    },
    "distributor_links": {
      "lcsc": "C633506",
      "digikey": "638-1086-ND",
      "mouser": "886-LAN9512-JZX"
    },
    "distributor_check": {
      "checked_at": "2026-11-08T00:27:43Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "638-1086-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "886-LAN9512-JZX",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "USBDM2",
        "type": "bidirectional",
        "description": "Downstream USB peripheral 2 DMINUS signal (analog I/O)."
      },
      {
        "number": "2",
        "name": "USBDP2",
        "type": "bidirectional",
        "description": "Downstream USB peripheral 2 DPLUS signal (analog I/O)."
      },
      {
        "number": "3",
        "name": "USBDM3",
        "type": "bidirectional",
        "description": "Downstream USB peripheral 3 DMINUS signal (analog I/O)."
      },
      {
        "number": "4",
        "name": "USBDP3",
        "type": "bidirectional",
        "description": "Downstream USB peripheral 3 DPLUS signal (analog I/O)."
      },
      {
        "number": "5",
        "name": "VDD33A",
        "type": "power_in",
        "description": "+3.3V analog power supply; see reference schematics for connection."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "10",
        "name": "VDD33A",
        "type": "power_in",
        "description": "+3.3V analog power supply; see reference schematics for connection."
      },
      {
        "number": "11",
        "name": "VBUS_DET",
        "type": "input",
        "description": "5V-tolerant Schmitt input detecting upstream VBUS power; must be tied to VDD33IO for bus-powered hubs."
      },
      {
        "number": "12",
        "name": "nRESET",
        "type": "input",
        "description": "Active-low Schmitt input that resets the device; tie high if unused."
      },
      {
        "number": "13",
        "name": "TEST1",
        "type": "unconnected",
        "description": "Factory test pin; must always be left unconnected."
      },
      {
        "number": "14",
        "name": "PRTCTL2",
        "type": "bidirectional",
        "description": "Port power control output enabling downstream port 2 power, or overcurrent sense input (low indicates overcurrent); IS/OD12 with pull-up."
      },
      {
        "number": "15",
        "name": "VDD18CORE",
        "type": "power_out",
        "description": "+1.8V output of the internal core regulator; all VDD18CORE pins must be tied together."
      },
      {
        "number": "16",
        "name": "PRTCTL3",
        "type": "bidirectional",
        "description": "Port power control output enabling downstream port 3 power, or overcurrent sense input (low indicates overcurrent); IS/OD12 with pull-up."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "19",
        "name": "VDD33IO",
        "type": "power_in",
        "description": "+3.3V power supply for I/O pins."
      },
      {
        "number": "20",
        "name": "nFDX_LED/GPIO0",
        "type": "bidirectional",
        "description": "Full-duplex LED driven low when link is full-duplex, or GPIO0 programmable as push-pull, open-drain or Schmitt input (OD12, pull-up)."
      },
      {
        "number": "21",
        "name": "nLNKA_LED/GPIO1",
        "type": "bidirectional",
        "description": "Link/activity LED driven low on valid link and pulsed high for 80 ms on activity, or GPIO1 programmable as push-pull, open-drain or Schmitt input (OD12, pull-up)."
      },
      {
        "number": "22",
        "name": "nSPD_LED/GPIO2",
        "type": "bidirectional",
        "description": "Speed LED driven low at 100 Mbps or during auto-negotiation and high at 10 Mbps, or GPIO2 programmable as push-pull, open-drain or Schmitt input (OD12, pull-up)."
      },
      {
        "number": "23",
        "name": "EECLK",
        "type": "output",
        "description": "Drives the clock of the external EEPROM (O8)."
      },
      {
        "number": "24",
        "name": "EECS",
        "type": "output",
        "description": "Drives the chip select of the external EEPROM (O8)."
      },
      {
        "number": "25",
        "name": "EEDO",
        "type": "output",
        "description": "Drives the EEDI input of the external EEPROM (O8)."
      },
      {
        "number": "26",
        "name": "EEDI",
        "type": "input",
        "description": "EEPROM data input driven by the EEDO output of the external EEPROM (Schmitt, internal pull-down)."
      },
      {
        "number": "27",
        "name": "VDD33IO",
        "type": "power_in",
        "description": "+3.3V power supply for I/O pins."
      },
      {
        "number": "28",
        "name": "nTRST",
        "type": "input",
        "description": "Active-low JTAG test port reset input; tie high if not used."
      },
      {
        "number": "29",
        "name": "TMS",
        "type": "input",
        "description": "JTAG test mode select input."
      },
      {
        "number": "30",
        "name": "TDI",
        "type": "input",
        "description": "JTAG test data input."
      },
      {
        "number": "31",
        "name": "TDO",
        "type": "output",
        "description": "JTAG test data output (O12)."
      },
      {
        "number": "32",
        "name": "TCK",
        "type": "input",
        "description": "JTAG test clock input; should be tied high through a 10 kΩ resistor."
      },
      {
        "number": "33",
        "name": "VDD33IO",
        "type": "power_in",
        "description": "+3.3V power supply for I/O pins."
      },
      {
        "number": "34",
        "name": "TEST2",
        "type": "input",
        "description": "Factory test pin; must always be connected to VSS for proper operation."
      },
      {
        "number": "35",
        "name": "GPIO3",
        "type": "bidirectional",
        "description": "General purpose I/O programmable as push-pull output, open-drain output or Schmitt input (O8/OD8, pull-up)."
      },
      {
        "number": "36",
        "name": "GPIO4",
        "type": "bidirectional",
        "description": "General purpose I/O programmable as push-pull output, open-drain output or Schmitt input (O8/OD8, pull-up)."
      },
      {
        "number": "37",
        "name": "GPIO5",
        "type": "bidirectional",
        "description": "General purpose I/O programmable as push-pull output, open-drain output or Schmitt input (O8/OD8, pull-up)."
      },
      {
        "number": "38",
        "name": "VDD18CORE",
        "type": "power_out",
        "description": "+1.8V output of the internal core regulator; all VDD18CORE pins must be tied together."
      },
      {
        "number": "39",
        "name": "VDD33IO",
        "type": "power_in",
        "description": "+3.3V power supply for I/O pins."
      },
      {
        "number": "40",
        "name": "TEST3",
        "type": "input",
        "description": "Factory test pin; must always be connected to VDD33IO for proper operation."
      },
      {
        "number": "41",
        "name": "AUTOMDIX_EN",
        "type": "input",
        "description": "Sets default Auto-MDIX: 0 = disabled, 1 = enabled."
      },
      {
        "number": "42",
        "name": "GPIO6",
        "type": "bidirectional",
        "description": "General purpose I/O programmable as push-pull output, open-drain output or Schmitt input (O8/OD8, pull-up)."
      },
      {
        "number": "43",
        "name": "GPIO7",
        "type": "bidirectional",
        "description": "General purpose I/O programmable as push-pull output, open-drain output or Schmitt input (O8/OD8, pull-up)."
      },
      {
        "number": "44",
        "name": "CLK24_EN",
        "type": "input",
        "description": "Enables generation of the 24 MHz clock on the CLK24_OUT pin."
      },
      {
        "number": "45",
        "name": "CLK24_OUT",
        "type": "output",
        "description": "Outputs a 24 MHz clock usable as reference clock for a partner hub."
      },
      {
        "number": "46",
        "name": "VDD33IO",
        "type": "power_in",
        "description": "+3.3V power supply for I/O pins."
      },
      {
        "number": "47",
        "name": "TEST4",
        "type": "unconnected",
        "description": "Factory test pin; must always be left unconnected."
      },
      {
        "number": "48",
        "name": "VDD18ETHPLL",
        "type": "power_in",
        "description": "Ethernet PLL +1.8V power supply; see reference schematics for connection."
      },
      {
        "number": "49",
        "name": "VDD33A",
        "type": "power_in",
        "description": "+3.3V analog power supply; see reference schematics for connection."
      },
      {
        "number": "50",
        "name": "EXRES",
        "type": "passive",
        "description": "Internal bias circuit pin; connect to an external 12.4K 1.0% resistor to ground."
      },
      {
        "number": "51",
        "name": "VDD33A",
        "type": "power_in",
        "description": "+3.3V analog power supply; see reference schematics for connection."
      },
      {
        "number": "52",
        "name": "RXP",
        "type": "bidirectional",
        "description": "Positive Ethernet receiver input; may be swapped internally with transmit outputs when Auto-MDIX is enabled."
      },
      {
        "number": "53",
        "name": "RXN",
        "type": "bidirectional",
        "description": "Negative Ethernet receiver input; may be swapped internally with transmit outputs when Auto-MDIX is enabled."
      },
      {
        "number": "54",
        "name": "VDD33A",
        "type": "power_in",
        "description": "+3.3V analog power supply; see reference schematics for connection."
      },
      {
        "number": "55",
        "name": "TXP",
        "type": "bidirectional",
        "description": "Positive Ethernet transmitter output; may be swapped internally with receive inputs when Auto-MDIX is enabled."
      },
      {
        "number": "56",
        "name": "TXN",
        "type": "bidirectional",
        "description": "Negative Ethernet transmitter output; may be swapped internally with receive inputs when Auto-MDIX is enabled."
      },
      {
        "number": "57",
        "name": "VDD33A",
        "type": "power_in",
        "description": "+3.3V analog power supply; see reference schematics for connection."
      },
      {
        "number": "58",
        "name": "USBDM0",
        "type": "bidirectional",
        "description": "Upstream USB DMINUS signal (analog I/O)."
      },
      {
        "number": "59",
        "name": "USBDP0",
        "type": "bidirectional",
        "description": "Upstream USB DPLUS signal (analog I/O)."
      },
      {
        "number": "60",
        "name": "XO",
        "type": "output",
        "description": "External 25 MHz crystal output; leave unconnected when XI is driven by a single-ended oscillator."
      },
      {
        "number": "61",
        "name": "XI",
        "type": "input",
        "description": "External 25 MHz crystal input, or may be driven by a single-ended clock oscillator."
      },
      {
        "number": "62",
        "name": "VDD18USBPLL",
        "type": "power_in",
        "description": "USB PLL +1.8V power supply; see reference schematics for connection."
      },
      {
        "number": "63",
        "name": "USBRBIAS",
        "type": "passive",
        "description": "Sets HS transmit current level and on-chip termination impedance; connect to an external 12K 1.0% resistor to ground."
      },
      {
        "number": "64",
        "name": "VDD33A",
        "type": "power_in",
        "description": "+3.3V analog power supply; see reference schematics for connection."
      },
      {
        "number": "65",
        "name": "VSS",
        "type": "power_in",
        "description": "Exposed pad ground on package bottom; must be connected to ground."
      }
    ],
    "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: Datasheet text provided does not include the package outline pages (section 5.0), so the 9x9 mm body; Types chosen from buffer types: VDD18CORE (regulator output) set to power_out; TEST2/TEST3 set to in",
          "11/65 pins cited to the wrong page (name found elsewhere): ['13:TEST1@p9', '34:TEST2@p9', '40:TEST3@p9', '41:AUTOMDIX_EN@p9']",
          "1/65 pin names appear NOWHERE in the datasheet text: ['60:XO@p10']"
        ],
        "pages_sent": 21,
        "cost_usd": 0.1682,
        "at": "2026-11-08T00:27:33"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/8cb06fb3c744c668949636bf18ea304b.pdf",
        "pages": 52,
        "sha256": "b6ec2e27273c370b",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 65,
        "described": 65,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lan9512-jzx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          0.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dce07a86ec3fe3ca87eebdff13827f55e036ced5518fee01f85cec4a3f56366d",
        "checked": "2026-11-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lan9512-jzx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          0.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4e80e7a123aadef4154b815bbbc2f12a9022fd3176db21c5ed9743a83538bc94",
        "checked": "2026-11-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "QFN-64-EP(9x9)",
      "Category": "Interface ICs",
      "Pins": "65"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b6ec2e27273c370bac925670ac0e8298469e6297d19917fc8e93766ed076a757",
      "rows": [
        {
          "name": "Supply Voltage (VDD33IO, VDD33A)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Positive voltage on signal pins, with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "Note 4-2",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Negative voltage on signal pins, with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "Note 4-3",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Positive voltage on XI, with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 4.6,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Positive voltage on XO, with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "HBM ESD Performance",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -8,
          "typ": null,
          "max": 8,
          "conditions": "per JESD 22-A114-E",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Contact Discharge ESD Performance",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -8,
          "typ": null,
          "max": 8,
          "conditions": "per IEC61000-4-2 (Note 4-5)",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Air-Gap Discharge ESD Performance",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "per IEC61000-4-2 (Note 4-5)",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Latch-up Performance",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -200,
          "typ": null,
          "max": 200,
          "conditions": "per EIA/JESD 78",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage (VDD33A, VDD33BIAS, VDD33IO)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": 3.3,
          "max": null,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "mV",
          "min": -300,
          "typ": null,
          "max": 300,
          "conditions": "around +3.3V supply",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Ambient Operating Temperature in Still Air",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 70,
          "conditions": "commercial version (Note 4-4)",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Clock input duty cycle",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "%",
          "min": 40,
          "typ": 50,
          "max": 60,
          "conditions": "XI driven by single-ended clock oscillator",
          "source_page": 43,
          "source": "datasheet"
        },
        {
          "name": "XI Low Input Level (ICLK Type Buffer)",
          "symbol": "VILI",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.5,
          "conditions": "Note 4-8",
          "source_page": 40,
          "source": "datasheet"
        },
        {
          "name": "XI High Input Level (ICLK Type Buffer)",
          "symbol": "VIHI",
          "kind": "electrical",
          "unit": "V",
          "min": 1.4,
          "typ": null,
          "max": 3.6,
          "conditions": "Note 4-8",
          "source_page": 40,
          "source": "datasheet"
        },
        {
          "name": "Negative-Going Threshold (IS Type Input Buffer)",
          "symbol": "VILT",
          "kind": "electrical",
          "unit": "V",
          "min": 1.01,
          "typ": 1.18,
          "max": 1.35,
          "conditions": "Schmitt trigger",
          "source_page": 39,
          "source": "datasheet"
        },
        {
          "name": "Positive-Going Threshold (IS Type Input Buffer)",
          "symbol": "VIHT",
          "kind": "electrical",
          "unit": "V",
          "min": 1.39,
          "typ": 1.6,
          "max": 1.8,
          "conditions": "Schmitt trigger",
          "source_page": 39,
          "source": "datasheet"
        },
        {
          "name": "Schmitt Trigger Hysteresis (IS Type Input Buffer)",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "mV",
          "min": 345,
          "typ": 420,
          "max": 485,
          "conditions": "(VIHT - VILT)",
          "source_page": 39,
          "source": "datasheet"
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