KSZ8463FRLI

{
  "slug": "ksz8463frli",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Interface - Specialized, LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "ksz8463frli",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ksz8463frli.kicad_sym",
    "ksz8463frli.kicad_mod",
    "ksz8463frli.glb",
    "ksz8463frli.step",
    "ksz8463frli.lbr",
    "docs/hero.png",
    "docs/ksz8463frli-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ksz8463frli-hero.glb",
    "ksz8463frli-hero.overlay.json",
    "ksz8463frli-etched.glb"
  ],
  "component": {
    "mpn": "KSZ8463FRLI",
    "manufacturer": "Microchip Tech",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "Interface - Specialized",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/52fe6ca1d7d2a3123611f76c6d89021b.pdf",
    "parts": {
      "symbol": "ksz8463frli.kicad_sym",
      "footprint": "ksz8463frli.kicad_mod",
      "model_3d": "ksz8463frli-hero.glb",
      "model_3d_plain": "ksz8463frli-etched.glb",
      "model_3d_step": "ksz8463frli-etched.step",
      "model_3d_step_plain": "ksz8463frli.step",
      "lbr": "ksz8463frli.lbr"
    },
    "distributor_links": {
      "lcsc": "C634203",
      "digikey": "576-4840-ND",
      "mouser": "998-KSZ8463FRLI"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T12:37:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "576-4840-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "998-KSZ8463FRLI",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RXM1",
        "type": "bidirectional",
        "description": "Port 1 physical receive (MDI) or transmit (MDIX) signal, negative differential."
      },
      {
        "number": "2",
        "name": "RXP1",
        "type": "bidirectional",
        "description": "Port 1 physical receive (MDI) or transmit (MDIX) signal, positive differential."
      },
      {
        "number": "3",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "4",
        "name": "TXM1",
        "type": "bidirectional",
        "description": "Port 1 physical transmit (MDI) or receive (MDIX) signal, negative differential."
      },
      {
        "number": "5",
        "name": "TXP1",
        "type": "bidirectional",
        "description": "Port 1 physical transmit (MDI) or receive (MDIX) signal, positive differential."
      },
      {
        "number": "6",
        "name": "VDD_AL",
        "type": "power_in",
        "description": "Low-voltage analog power input; its source should be filtered with a ferrite bead and capacitors."
      },
      {
        "number": "7",
        "name": "ISET",
        "type": "output",
        "description": "Sets physical transmit output current; pull down with a 6.49 kΩ (1%) resistor to ground."
      },
      {
        "number": "8",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "9",
        "name": "VDD_A3.3",
        "type": "power_in",
        "description": "3.3V analog VDD input supply; must be well decoupled."
      },
      {
        "number": "10",
        "name": "RXM2",
        "type": "bidirectional",
        "description": "Port 2 physical receive (MDI) or transmit (MDIX) signal, negative differential."
      },
      {
        "number": "11",
        "name": "RXP2",
        "type": "bidirectional",
        "description": "Port 2 physical receive (MDI) or transmit (MDIX) signal, positive differential."
      },
      {
        "number": "12",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "13",
        "name": "TXM2",
        "type": "bidirectional",
        "description": "Port 2 physical transmit (MDI) or receive (MDIX) signal, negative differential."
      },
      {
        "number": "14",
        "name": "TXP2",
        "type": "bidirectional",
        "description": "Port 2 physical transmit (MDI) or receive (MDIX) signal, positive differential."
      },
      {
        "number": "15",
        "name": "FXSD2",
        "type": "input",
        "description": "Port 2 fiber signal detect input in 100BASE-FX mode; in copper mode it is unused and should be pulled to GND."
      },
      {
        "number": "16",
        "name": "VDD_COL",
        "type": "power_in",
        "description": "Second low-voltage analog power input, to be filtered with a ferrite bead and capacitors."
      },
      {
        "number": "17",
        "name": "PWRDN",
        "type": "input",
        "description": "Active-low full-chip power-down with internal pull-up (low = power-down, high or floating = normal operation); all I/O pins are tri-stated while low."
      },
      {
        "number": "18",
        "name": "X1",
        "type": "input",
        "description": "25 MHz crystal or oscillator clock connection (±50 ppm); with an oscillator, X1 connects to a VDD_IO-tolerant oscillator."
      },
      {
        "number": "19",
        "name": "X2",
        "type": "output",
        "description": "25 MHz crystal connection; no connect when an oscillator is used on X1."
      },
      {
        "number": "20",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "21",
        "name": "VDD_IO",
        "type": "power_in",
        "description": "3.3V, 2.5V, or 1.8V digital VDD input for IO logic and the internal low-voltage regulator."
      },
      {
        "number": "22",
        "name": "TX_EN",
        "type": "input",
        "description": "RMII transmit enable, active high indicates valid transmit data on TXD[1:0]; internal pull-down."
      },
      {
        "number": "23",
        "name": "TXD3/EN_REFCLKO",
        "type": "input",
        "description": "In RMII mode EN_REFCLKO enables the REFCLK_O output on pin 32 when pulled up and disables it when pulled down; internal pull-down."
      },
      {
        "number": "24",
        "name": "TXD2/NC",
        "type": "input",
        "description": "No connect and not used in RMII mode (unused MII signals may be tied to ground via a resistor); internal pull-down."
      },
      {
        "number": "25",
        "name": "TXD1",
        "type": "input",
        "description": "RMII transmit data bit[1], synchronous to the 50 MHz REFCLK; internal pull-down."
      },
      {
        "number": "26",
        "name": "TXD0",
        "type": "input",
        "description": "RMII transmit data bit[0], synchronous to the 50 MHz REFCLK; internal pull-down."
      },
      {
        "number": "27",
        "name": "TX_CLK/REFCLK_I",
        "type": "input",
        "description": "RMII 50 MHz reference input clock; internal pull-down."
      },
      {
        "number": "28",
        "name": "TX_ER/MII_BP",
        "type": "input",
        "description": "No connect and not used in RMII mode per the pin table, though TX_ER may connect to the RMII PHY RX_ER; internal pull-down."
      },
      {
        "number": "29",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "30",
        "name": "VDD_IO",
        "type": "power_in",
        "description": "3.3V, 2.5V, or 1.8V digital VDD input for IO logic and the internal low-voltage regulator."
      },
      {
        "number": "31",
        "name": "RX_DV",
        "type": "bidirectional",
        "description": "RMII receive data valid, active high indicates valid data on RXD[1:0]; latched at power-up/reset as a PHY/MAC MII mode strap (pull-up default)."
      },
      {
        "number": "32",
        "name": "RXD3/REFCLK_O",
        "type": "output",
        "description": "RMII 50 MHz REFCLK_O output (16 mA drive) when EN_REFCLKO (pin 23) is pulled up; internal pull-down during reset."
      },
      {
        "number": "33",
        "name": "RXD2",
        "type": "bidirectional",
        "description": "Not used in RMII mode; at power-up/reset a pull-up (default) selects high-speed SPI (up to 50 MHz) and a pull-down selects low-speed SPI (up to 12.5 MHz)."
      },
      {
        "number": "34",
        "name": "RXD1",
        "type": "bidirectional",
        "description": "RMII receive data bit[1], synchronous to REFCLK (50 MHz); latched at power-up/reset with RXD0 to select the serial bus mode."
      },
      {
        "number": "35",
        "name": "RXD0",
        "type": "bidirectional",
        "description": "RMII receive data bit[0], synchronous to REFCLK (50 MHz); latched at power-up/reset with RXD1 to select the serial bus mode."
      },
      {
        "number": "36",
        "name": "CRS/GPIO9_RLI",
        "type": "bidirectional",
        "description": "GPIO9 in RMII mode; internal pull-down."
      },
      {
        "number": "37",
        "name": "COL/GPIO10_RLI",
        "type": "bidirectional",
        "description": "GPIO10 in RMII mode; internal pull-down."
      },
      {
        "number": "38",
        "name": "RX_CLK/GPIO7_RLI",
        "type": "bidirectional",
        "description": "GPIO7 in RMII mode; internal pull-down."
      },
      {
        "number": "39",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "40",
        "name": "VDD_L",
        "type": "power_in",
        "description": "Low-voltage input if the internal regulator is not used, or low-voltage output if the internal regulator is used."
      },
      {
        "number": "41",
        "name": "SPI_DO",
        "type": "bidirectional",
        "description": "SPI slave serial data output; at power-up/reset a pull-up (default) selects the 25 MHz X1/X2 clock and a pull-down selects the 50 MHz REFCLK_I input."
      },
      {
        "number": "42",
        "name": "SPI_CSN",
        "type": "input",
        "description": "Active-low SPI slave chip select with internal pull-down; needs an external 4.7 kΩ pull-up when in use."
      },
      {
        "number": "43",
        "name": "INTRN",
        "type": "output",
        "description": "Active-low interrupt output to the host CPU; needs an external 4.7 kΩ pull-up resistor."
      },
      {
        "number": "44",
        "name": "SPI_SCLK/MDC",
        "type": "input",
        "description": "Serial clock input in SPI slave mode, or MDC clock input in MIIM mode; internal pull-up."
      },
      {
        "number": "45",
        "name": "SPI_DI/MDIO",
        "type": "bidirectional",
        "description": "SPI slave serial data input or MIIM MDIO data input/output; needs an external 4.7 kΩ pull-up resistor."
      },
      {
        "number": "46",
        "name": "GPIO8",
        "type": "bidirectional",
        "description": "General purpose I/O 8 with internal pull-down."
      },
      {
        "number": "47",
        "name": "GPIO11",
        "type": "bidirectional",
        "description": "General purpose I/O 11 with internal pull-up."
      },
      {
        "number": "48",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General purpose I/O 0 usable by the IEEE 1588 event trigger or time stamp units, synchronized to the internal 1588 clock; internal pull-up."
      },
      {
        "number": "49",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General purpose I/O 1 with internal pull-up."
      },
      {
        "number": "50",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "51",
        "name": "VDD_L",
        "type": "power_in",
        "description": "Low-voltage input if the internal regulator is not used, or low-voltage output if the internal regulator is used."
      },
      {
        "number": "52",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "General purpose I/O 2 with internal pull-up."
      },
      {
        "number": "53",
        "name": "GPIO3",
        "type": "bidirectional",
        "description": "General purpose I/O 3 with internal pull-down."
      },
      {
        "number": "54",
        "name": "GPIO4",
        "type": "bidirectional",
        "description": "General purpose I/O 4 with internal pull-down."
      },
      {
        "number": "55",
        "name": "GPIO5",
        "type": "bidirectional",
        "description": "General purpose I/O 5 with internal pull-down."
      },
      {
        "number": "56",
        "name": "VDD_IO",
        "type": "power_in",
        "description": "3.3V, 2.5V, or 1.8V digital VDD input for IO logic and the internal low-voltage regulator."
      },
      {
        "number": "57",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "58",
        "name": "GPIO6",
        "type": "bidirectional",
        "description": "General purpose I/O 6 with internal pull-up."
      },
      {
        "number": "59",
        "name": "P1LED1/GPIO7_MLI",
        "type": "bidirectional",
        "description": "Port 1 LED1 output in RMII mode, active (ON) when low."
      },
      {
        "number": "60",
        "name": "P1LED0",
        "type": "bidirectional",
        "description": "Port 1 LED0 output, active (ON) when low."
      },
      {
        "number": "61",
        "name": "P2LED1/GPIO9_MLI",
        "type": "bidirectional",
        "description": "Port 2 LED1 output in RMII mode, active (ON) when low."
      },
      {
        "number": "62",
        "name": "P2LED0/GPIO10_MLI",
        "type": "bidirectional",
        "description": "Port 2 LED0 output in RMII mode, active (ON) when low."
      },
      {
        "number": "63",
        "name": "RSTN",
        "type": "input",
        "description": "Active-low hardware reset input with internal pull-up; must be low for at least 10 ms after VDD_IO and 3.3V supplies are stable."
      },
      {
        "number": "64",
        "name": "FXSD1",
        "type": "input",
        "description": "Port 1 fiber signal detect input in 100BASE-FX mode; in copper mode it is unused and should be pulled to GND."
      }
    ],
    "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: The datasheet pin table uses type codes P/GND/I/O only. VDD_L (pins 40, 51) can be a regulator outpu; Pins marked 'not used' or 'no connect' in RMII mode (TXD2/NC, TX_ER) are typed as input because the ; Strapped pins are typed bidirectional because they are inputs at reset and outputs afterward. The da"
        ],
        "pages_sent": 32,
        "cost_usd": 0.3885,
        "at": "2026-10-31T12:37:23"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/52fe6ca1d7d2a3123611f76c6d89021b.pdf",
        "pages": 213,
        "sha256": "6e2255020c924402",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ksz8463frli.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ksz8463frli-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "fa9fe63517775f79c9a17bf2507a8730dab84e4cd0d468e23c8f034619aeba27",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}