VSC8664XIC

{
  "slug": "vsc8664xic",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Telecommunication Interface ICs, BGA-256(17x17). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface ics",
    "vsc8664xic",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
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  "component": {
    "mpn": "VSC8664XIC",
    "manufacturer": "Microchip Tech",
    "package": "BGA-256(17x17)",
    "pin_count": 256,
    "category": "Interface ICs",
    "subcategory": "Telecommunication Interface ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/319bba66921c016efe32634e861eebbd.pdf",
    "parts": {
      "symbol": "vsc8664xic.kicad_sym",
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      "lbr": "vsc8664xic.lbr"
    },
    "distributor_links": {
      "lcsc": "C1522117",
      "mouser": "494-VSC8664XIC"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T22:50:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "494-VSC8664XIC",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "A1",
        "name": "NC",
        "type": "unconnected",
        "description": "No-connect ball; leave floating and do not connect it to other pins or ground."
      },
      {
        "number": "A2",
        "name": "TXVPA_3",
        "type": "passive",
        "description": "Channel A positive TX/RX signal of the twisted pair interface on PHY 3 (ADIFF)."
      },
      {
        "number": "A3",
        "name": "TXVPB_3",
        "type": "passive",
        "description": "Channel B positive TX/RX signal of the twisted pair interface on PHY 3 (ADIFF)."
      },
      {
        "number": "A4",
        "name": "TXVPC_3",
        "type": "passive",
        "description": "Channel C positive TX/RX signal of the twisted pair interface on PHY 3 (ADIFF)."
      },
      {
        "number": "A5",
        "name": "TXVPD_3",
        "type": "passive",
        "description": "Channel D positive TX/RX signal of the twisted pair interface on PHY 3 (ADIFF)."
      },
      {
        "number": "A6",
        "name": "TXVPA_2",
        "type": "passive",
        "description": "Channel A positive TX/RX signal of the twisted pair interface on PHY 2 (ADIFF)."
      },
      {
        "number": "A7",
        "name": "TXVPB_2",
        "type": "passive",
        "description": "Channel B positive TX/RX signal of the twisted pair interface on PHY 2 (ADIFF)."
      },
      {
        "number": "A8",
        "name": "TXVPC_2",
        "type": "passive",
        "description": "Channel C positive TX/RX signal of the twisted pair interface on PHY 2 (ADIFF)."
      },
      {
        "number": "A9",
        "name": "TXVPD_2",
        "type": "passive",
        "description": "Channel D positive TX/RX signal of the twisted pair interface on PHY 2 (ADIFF)."
      },
      {
        "number": "A10",
        "name": "TXVPA_1",
        "type": "passive",
        "description": "Channel A positive TX/RX signal of the twisted pair interface on PHY 1 (ADIFF)."
      },
      {
        "number": "A11",
        "name": "TXVPB_1",
        "type": "passive",
        "description": "Channel B positive TX/RX signal of the twisted pair interface on PHY 1 (ADIFF)."
      },
      {
        "number": "A12",
        "name": "TXVPC_1",
        "type": "passive",
        "description": "Channel C positive TX/RX signal of the twisted pair interface on PHY 1 (ADIFF)."
      },
      {
        "number": "A13",
        "name": "TXVPD_1",
        "type": "passive",
        "description": "Channel D positive TX/RX signal of the twisted pair interface on PHY 1 (ADIFF)."
      },
      {
        "number": "A14",
        "name": "TXVPA_0",
        "type": "passive",
        "description": "Channel A positive TX/RX signal of the twisted pair interface on PHY 0 (ADIFF)."
      },
      {
        "number": "A15",
        "name": "TXVPB_0",
        "type": "passive",
        "description": "Channel B positive TX/RX signal of the twisted pair interface on PHY 0 (ADIFF)."
      },
      {
        "number": "A16",
        "name": "NC",
        "type": "unconnected",
        "description": "No-connect ball; leave floating and do not connect it to other pins or ground."
      },
      {
        "number": "B1",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "B2",
        "name": "TXVNA_3",
        "type": "passive",
        "description": "Channel A negative TX/RX signal of the twisted pair interface on PHY 3 (ADIFF)."
      },
      {
        "number": "B3",
        "name": "TXVNB_3",
        "type": "passive",
        "description": "Channel B negative TX/RX signal of the twisted pair interface on PHY 3 (ADIFF)."
      },
      {
        "number": "B4",
        "name": "TXVNC_3",
        "type": "passive",
        "description": "Channel C negative TX/RX signal of the twisted pair interface on PHY 3 (ADIFF)."
      },
      {
        "number": "B5",
        "name": "TXVND_3",
        "type": "passive",
        "description": "Channel D negative TX/RX signal of the twisted pair interface on PHY 3 (ADIFF)."
      },
      {
        "number": "B6",
        "name": "TXVNA_2",
        "type": "passive",
        "description": "Channel A negative TX/RX signal of the twisted pair interface on PHY 2 (ADIFF)."
      },
      {
        "number": "B7",
        "name": "TXVNB_2",
        "type": "passive",
        "description": "Channel B negative TX/RX signal of the twisted pair interface on PHY 2 (ADIFF)."
      },
      {
        "number": "B8",
        "name": "TXVNC_2",
        "type": "passive",
        "description": "Channel C negative TX/RX signal of the twisted pair interface on PHY 2 (ADIFF)."
      },
      {
        "number": "B9",
        "name": "TXVND_2",
        "type": "passive",
        "description": "Channel D negative TX/RX signal of the twisted pair interface on PHY 2 (ADIFF)."
      },
      {
        "number": "B10",
        "name": "TXVNA_1",
        "type": "passive",
        "description": "Channel A negative TX/RX signal of the twisted pair interface on PHY 1 (ADIFF)."
      },
      {
        "number": "B11",
        "name": "TXVNB_1",
        "type": "passive",
        "description": "Channel B negative TX/RX signal of the twisted pair interface on PHY 1 (ADIFF)."
      },
      {
        "number": "B12",
        "name": "TXVNC_1",
        "type": "passive",
        "description": "Channel C negative TX/RX signal of the twisted pair interface on PHY 1 (ADIFF)."
      },
      {
        "number": "B13",
        "name": "TXVND_1",
        "type": "passive",
        "description": "Channel D negative TX/RX signal of the twisted pair interface on PHY 1 (ADIFF)."
      },
      {
        "number": "B14",
        "name": "TXVNA_0",
        "type": "passive",
        "description": "Channel A negative TX/RX signal of the twisted pair interface on PHY 0 (ADIFF)."
      },
      {
        "number": "B15",
        "name": "TXVNB_0",
        "type": "passive",
        "description": "Channel B negative TX/RX signal of the twisted pair interface on PHY 0 (ADIFF)."
      },
      {
        "number": "B16",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "C1",
        "name": "XTAL2",
        "type": "passive",
        "description": "Crystal oscillator output; connect the crystal across XTAL1 and XTAL2 with 33 pF to ground, or leave floating when driving XTAL1/REFCLK with a reference clock."
      },
      {
        "number": "C2",
        "name": "VDD33",
        "type": "power_in",
        "description": "General 3.3 V power supply."
      },
      {
        "number": "C3",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "C4",
        "name": "VDD33",
        "type": "power_in",
        "description": "General 3.3 V power supply."
      },
      {
        "number": "C5",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "C6",
        "name": "VDD33",
        "type": "power_in",
        "description": "General 3.3 V power supply."
      },
      {
        "number": "C7",
        "name": "VDD12A",
        "type": "power_in",
        "description": "1.2 V analog power supply requiring additional PCB power supply filtering."
      },
      {
        "number": "C8",
        "name": "VDD12A",
        "type": "power_in",
        "description": "1.2 V analog power supply requiring additional PCB power supply filtering."
      },
      {
        "number": "C9",
        "name": "VDD12A",
        "type": "power_in",
        "description": "1.2 V analog power supply requiring additional PCB power supply filtering."
      },
      {
        "number": "C10",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved pin; leave unconnected (floating)."
      },
      {
        "number": "C11",
        "name": "VDD33",
        "type": "power_in",
        "description": "General 3.3 V power supply."
      },
      {
        "number": "C12",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "C13",
        "name": "VDD12A",
        "type": "power_in",
        "description": "1.2 V analog power supply requiring additional PCB power supply filtering."
      },
      {
        "number": "C14",
        "name": "VDD33",
        "type": "power_in",
        "description": "General 3.3 V power supply."
      },
      {
        "number": "C15",
        "name": "TXVNC_0",
        "type": "passive",
        "description": "Channel C negative TX/RX signal of the twisted pair interface on PHY 0 (ADIFF)."
      },
      {
        "number": "C16",
        "name": "TXVPC_0",
        "type": "passive",
        "description": "Channel C positive TX/RX signal of the twisted pair interface on PHY 0 (ADIFF)."
      },
      {
        "number": "D1",
        "name": "XTAL1/REFCLK",
        "type": "input",
        "description": "Crystal input when OSCEN is high (25 MHz parallel-resonant crystal, ±50 ppm, with 33 pF to ground); reference clock input when OSCEN is low (25 MHz with PLLMODE low, or 125 MHz with PLLMODE high)."
      },
      {
        "number": "D2",
        "name": "OSCEN",
        "type": "input",
        "description": "Oscillator enable, sampled on the rising edge of NRESET; high enables the on-chip oscillator, and low or floating disables it."
      },
      {
        "number": "D3",
        "name": "REF_FILT",
        "type": "passive",
        "description": "Reference filter pin; connect to an external 1 µF capacitor to analog ground."
      },
      {
        "number": "D4",
        "name": "REF_REXT",
        "type": "passive",
        "description": "Reference external pin; connect to an external 2 kΩ (1%) resistor to analog ground."
      },
      {
        "number": "D5",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "D6",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "D7",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "D8",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "D9",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "D10",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "D11",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "D12",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "D13",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved pin; leave unconnected (floating)."
      },
      {
        "number": "D14",
        "name": "CMODE5",
        "type": "passive",
        "description": "Configuration mode (CMODE) analog input used to set device functions at reset."
      },
      {
        "number": "D15",
        "name": "TXVND_0",
        "type": "passive",
        "description": "Channel D negative TX/RX signal of the twisted pair interface on PHY 0 (ADIFF)."
      },
      {
        "number": "D16",
        "name": "TXVPD_0",
        "type": "passive",
        "description": "Channel D positive TX/RX signal of the twisted pair interface on PHY 0 (ADIFF)."
      },
      {
        "number": "E1",
        "name": "PLLMODE",
        "type": "input",
        "description": "PLL mode select sampled at power-up or reset; low requires a 25 MHz REFCLK, high requires 125 MHz, and it must be pulled low when using a crystal."
      },
      {
        "number": "E2",
        "name": "TMS",
        "type": "input",
        "description": "JTAG test mode select input, with on-chip pull-up to VDD33; 5 V tolerant."
      },
      {
        "number": "E3",
        "name": "NTRST",
        "type": "input",
        "description": "JTAG reset input, with on-chip pull-up to VDD33; when JTAG is not used, tie it to VSS with a pull-down resistor."
      },
      {
        "number": "E4",
        "name": "VDD33",
        "type": "power_in",
        "description": "General 3.3 V power supply."
      },
      {
        "number": "E5",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "E6",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "E7",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "E8",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "E9",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "E10",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "E11",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "E12",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "E13",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved pin; leave unconnected (floating)."
      },
      {
        "number": "E14",
        "name": "CMODE4",
        "type": "passive",
        "description": "Configuration mode (CMODE) analog input used to set device functions at reset."
      },
      {
        "number": "E15",
        "name": "CMODE6",
        "type": "passive",
        "description": "Configuration mode (CMODE) analog input used to set device functions at reset."
      },
      {
        "number": "E16",
        "name": "CMODE7",
        "type": "passive",
        "description": "Configuration mode (CMODE) analog input used to set device functions at reset."
      },
      {
        "number": "F1",
        "name": "TDO",
        "type": "output",
        "description": "JTAG test serial data output, with on-chip pull-up to VDDIO."
      },
      {
        "number": "F2",
        "name": "TDI",
        "type": "input",
        "description": "JTAG test serial data input, with on-chip pull-up to VDD33; 5 V tolerant."
      },
      {
        "number": "F3",
        "name": "TCK",
        "type": "input",
        "description": "JTAG test clock input, with on-chip pull-up to VDD33; 5 V tolerant."
      },
      {
        "number": "F4",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "F5",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "F6",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "F7",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "F8",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "F9",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "F10",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "F11",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "F12",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "F13",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved pin; leave unconnected (floating)."
      },
      {
        "number": "F14",
        "name": "CMODE2",
        "type": "passive",
        "description": "Configuration mode (CMODE) analog input used to set device functions at reset."
      },
      {
        "number": "F15",
        "name": "CMODE3",
        "type": "passive",
        "description": "Configuration mode (CMODE) analog input used to set device functions at reset."
      },
      {
        "number": "F16",
        "name": "RCVRD_CLK1",
        "type": "output",
        "description": "Recovered clock output 1, enabled through register 23G and selectable at 125 MHz or 25 MHz; held low when disabled or when NRESET or NSRESET is asserted."
      },
      {
        "number": "G1",
        "name": "LED0_0",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 0 LED 0, driven from VDD33 at 3.3 V; can carry the serial LED stream."
      },
      {
        "number": "G2",
        "name": "LED1_0",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 0 LED 1, driven from VDD33 at 3.3 V; can carry the serial LED clock."
      },
      {
        "number": "G3",
        "name": "LED2_0",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 0 LED 2, driven from VDD33 at 3.3 V."
      },
      {
        "number": "G4",
        "name": "LED3_0",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 0 LED 3, driven from VDD33 at 3.3 V."
      },
      {
        "number": "G5",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "G6",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "G7",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "G8",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "G9",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "G10",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "G11",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "G12",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "G13",
        "name": "CMODE0",
        "type": "passive",
        "description": "Configuration mode (CMODE) analog input used to set device functions at reset."
      },
      {
        "number": "G14",
        "name": "CMODE1",
        "type": "passive",
        "description": "Configuration mode (CMODE) analog input used to set device functions at reset."
      },
      {
        "number": "G15",
        "name": "CLKOUT",
        "type": "output",
        "description": "Clock output of 125 MHz that can be enabled or disabled; held low when disabled and not active while NRESET is asserted."
      },
      {
        "number": "G16",
        "name": "RCVRD_CLK2",
        "type": "output",
        "description": "Recovered clock output 2, enabled through register 24G and selectable at 125 MHz or 25 MHz; held low when disabled or when NRESET or NSRESET is asserted."
      },
      {
        "number": "H1",
        "name": "LED0_1",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 1 LED 0, driven from VDD33 at 3.3 V."
      },
      {
        "number": "H2",
        "name": "LED1_1",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 1 LED 1, driven from VDD33 at 3.3 V."
      },
      {
        "number": "H3",
        "name": "LED2_1",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 1 LED 2, driven from VDD33 at 3.3 V."
      },
      {
        "number": "H4",
        "name": "LED3_1",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 1 LED 3, driven from VDD33 at 3.3 V."
      },
      {
        "number": "H5",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "H6",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "H7",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "H8",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "H9",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "H10",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "H11",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "H12",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "H13",
        "name": "VDD33",
        "type": "power_in",
        "description": "General 3.3 V power supply."
      },
      {
        "number": "H14",
        "name": "GPIO13",
        "type": "bidirectional",
        "description": "General-purpose input/output with on-chip pull-up to VDDIO or VDD33; can be used as a GPIO pin."
      },
      {
        "number": "H15",
        "name": "THERMDC",
        "type": "passive",
        "description": "Thermal diode cathode (n-junction), connected internally to VSS."
      },
      {
        "number": "H16",
        "name": "THERMDA",
        "type": "passive",
        "description": "Thermal diode anode (p-junction)."
      },
      {
        "number": "J1",
        "name": "LED0_2",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 2 LED 0, driven from VDD33 at 3.3 V."
      },
      {
        "number": "J2",
        "name": "LED1_2",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 2 LED 1, driven from VDD33 at 3.3 V."
      },
      {
        "number": "J3",
        "name": "LED2_2",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 2 LED 2, driven from VDD33 at 3.3 V."
      },
      {
        "number": "J4",
        "name": "LED3_2",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 2 LED 3, driven from VDD33 at 3.3 V."
      },
      {
        "number": "J5",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "J6",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "J7",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "J8",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "J9",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "J10",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "J11",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "J12",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "J13",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "J14",
        "name": "GPIO12",
        "type": "bidirectional",
        "description": "General-purpose input/output with on-chip pull-up to VDDIO or VDD33; can be used as a GPIO pin."
      },
      {
        "number": "J15",
        "name": "GPIO14",
        "type": "bidirectional",
        "description": "General-purpose input/output with on-chip pull-up to VDDIO or VDD33; can be used as a GPIO pin."
      },
      {
        "number": "J16",
        "name": "GPIO15",
        "type": "bidirectional",
        "description": "General-purpose input/output with on-chip pull-up to VDDIO or VDD33; can be used as a GPIO pin."
      },
      {
        "number": "K1",
        "name": "LED0_3",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 3 LED 0, driven from VDD33 at 3.3 V."
      },
      {
        "number": "K2",
        "name": "LED1_3",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 3 LED 1, driven from VDD33 at 3.3 V."
      },
      {
        "number": "K3",
        "name": "LED2_3",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 3 LED 2, driven from VDD33 at 3.3 V."
      },
      {
        "number": "K4",
        "name": "LED3_3",
        "type": "output",
        "description": "Active-low LED direct-drive output for PHY 3 LED 3, driven from VDD33 at 3.3 V."
      },
      {
        "number": "K5",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "K6",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "K7",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "K8",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "K9",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "K10",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "K11",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "K12",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "K13",
        "name": "GPIO8/I2C_SDA",
        "type": "bidirectional",
        "description": "General-purpose input/output that can also serve as the I2C controller SDA pin if not used as GPIO."
      },
      {
        "number": "K14",
        "name": "GPIO9/FastLinkFail",
        "type": "bidirectional",
        "description": "General-purpose input/output that also serves as the fast link failure indicator, asserting high when a link fails and the feature is enabled."
      },
      {
        "number": "K15",
        "name": "GPIO10",
        "type": "bidirectional",
        "description": "General-purpose input/output with on-chip pull-up to VDDIO or VDD33; can be used as a GPIO pin."
      },
      {
        "number": "K16",
        "name": "GPIO11",
        "type": "bidirectional",
        "description": "General-purpose input/output with on-chip pull-up to VDDIO or VDD33; can be used as a GPIO pin."
      },
      {
        "number": "L1",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved pin; leave unconnected (floating)."
      },
      {
        "number": "L2",
        "name": "MDINT3",
        "type": "output",
        "description": "Management interrupt output for PHY 3, configured as active-low open-drain or active-high open-source by an external resistor at reset."
      },
      {
        "number": "L3",
        "name": "NSRESET",
        "type": "input",
        "description": "Active-low device soft reset input; powers down the device, while register bits marked sticky keep their values."
      },
      {
        "number": "L4",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "L5",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "L6",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "L7",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "L8",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "L9",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "L10",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "L11",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "L12",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "L13",
        "name": "GPIO4/I2C_SCL_0",
        "type": "bidirectional",
        "description": "General-purpose input/output that can also serve as the I2C controller SCL pin for mux port 0 if not used as GPIO."
      },
      {
        "number": "L14",
        "name": "GPIO5/I2C_SCL_1",
        "type": "bidirectional",
        "description": "General-purpose input/output that can also serve as the I2C controller SCL pin for mux port 1 if not used as GPIO."
      },
      {
        "number": "L15",
        "name": "GPIO6/I2C_SCL_2",
        "type": "bidirectional",
        "description": "General-purpose input/output that can also serve as the I2C controller SCL pin for mux port 2 if not used as GPIO."
      },
      {
        "number": "L16",
        "name": "GPIO7/I2C_SCL_3",
        "type": "bidirectional",
        "description": "General-purpose input/output that can also serve as the I2C controller SCL pin for mux port 3 if not used as GPIO."
      },
      {
        "number": "M1",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved pin; leave unconnected (floating)."
      },
      {
        "number": "M2",
        "name": "MDINT0",
        "type": "output",
        "description": "Management interrupt output for PHY 0, configured as active-low open-drain or active-high open-source by an external resistor at reset."
      },
      {
        "number": "M3",
        "name": "NRESET",
        "type": "input",
        "description": "Active-low device reset input; powers down the device and sets all register bits to their default state."
      },
      {
        "number": "M4",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O power supply for MDC, MDIO, MDINTn and NRESET, selectable at 3.3 V, 2.5 V or 1.8 V."
      },
      {
        "number": "M5",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "M6",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "M7",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "M8",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "M9",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "M10",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "M11",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "M12",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "M13",
        "name": "VDD33",
        "type": "power_in",
        "description": "General 3.3 V power supply."
      },
      {
        "number": "M14",
        "name": "GPIO1/SIGDET1",
        "type": "bidirectional",
        "description": "General-purpose input/output that can also serve as the SIGDET input for PHY port 1 if not used as GPIO."
      },
      {
        "number": "M15",
        "name": "GPIO2/SIGDET2",
        "type": "bidirectional",
        "description": "General-purpose input/output that can also serve as the SIGDET input for PHY port 2 if not used as GPIO."
      },
      {
        "number": "M16",
        "name": "GPIO3/SIGDET3",
        "type": "bidirectional",
        "description": "General-purpose input/output that can also serve as the SIGDET input for PHY port 3 if not used as GPIO."
      },
      {
        "number": "N1",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved pin; leave unconnected (floating)."
      },
      {
        "number": "N2",
        "name": "MDIO",
        "type": "bidirectional",
        "description": "Management data input/output, clocked on the positive edge of MDC; datasheet lists it as open-drain and requires one external pull-up resistor at the station manager (2 kΩ per Section 3.13)."
      },
      {
        "number": "N3",
        "name": "MDINT1",
        "type": "output",
        "description": "Management interrupt output for PHY 1, configured as active-low open-drain or active-high open-source by an external resistor at reset."
      },
      {
        "number": "N4",
        "name": "MDINT2",
        "type": "output",
        "description": "Management interrupt output for PHY 2, configured as active-low open-drain or active-high open-source by an external resistor at reset."
      },
      {
        "number": "N5",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "N6",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "N7",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "N8",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "N9",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "N10",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "N11",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "N12",
        "name": "VDD12",
        "type": "power_in",
        "description": "1.2 V supply for the internal digital logic."
      },
      {
        "number": "N13",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "N14",
        "name": "GPIO0/SIGDET0",
        "type": "bidirectional",
        "description": "General-purpose input/output that can also serve as the SIGDET input for PHY port 0 if not used as GPIO."
      },
      {
        "number": "N15",
        "name": "TDP_0",
        "type": "input",
        "description": "SerDes MAC transmitter input pair, positive leg, for PHY 0 (IDIFF)."
      },
      {
        "number": "N16",
        "name": "TDN_0",
        "type": "input",
        "description": "SerDes MAC transmitter input pair, negative leg, for PHY 0 (IDIFF)."
      },
      {
        "number": "P1",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved pin; leave unconnected (floating)."
      },
      {
        "number": "P2",
        "name": "MDC",
        "type": "input",
        "description": "Management data clock input, 0 MHz to 12.5 MHz, used to clock MDIO data in and out of the PHY."
      },
      {
        "number": "P3",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O power supply for MDC, MDIO, MDINTn and NRESET, selectable at 3.3 V, 2.5 V or 1.8 V."
      },
      {
        "number": "P4",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "P5",
        "name": "VDD33",
        "type": "power_in",
        "description": "General 3.3 V power supply."
      },
      {
        "number": "P6",
        "name": "VDD12A",
        "type": "power_in",
        "description": "1.2 V analog power supply requiring additional PCB power supply filtering."
      },
      {
        "number": "P7",
        "name": "VDD12A",
        "type": "power_in",
        "description": "1.2 V analog power supply requiring additional PCB power supply filtering."
      },
      {
        "number": "P8",
        "name": "VDD12A",
        "type": "power_in",
        "description": "1.2 V analog power supply requiring additional PCB power supply filtering."
      },
      {
        "number": "P9",
        "name": "VDD12A",
        "type": "power_in",
        "description": "1.2 V analog power supply requiring additional PCB power supply filtering."
      },
      {
        "number": "P10",
        "name": "VDD12A",
        "type": "power_in",
        "description": "1.2 V analog power supply requiring additional PCB power supply filtering."
      },
      {
        "number": "P11",
        "name": "VDD12A",
        "type": "power_in",
        "description": "1.2 V analog power supply requiring additional PCB power supply filtering."
      },
      {
        "number": "P12",
        "name": "VDD33",
        "type": "power_in",
        "description": "General 3.3 V power supply."
      },
      {
        "number": "P13",
        "name": "VDD33",
        "type": "power_in",
        "description": "General 3.3 V power supply."
      },
      {
        "number": "P14",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "P15",
        "name": "RDP_0",
        "type": "output",
        "description": "SerDes MAC receiver output pair, positive leg, for PHY 0 (ODIFF)."
      },
      {
        "number": "P16",
        "name": "RDN_0",
        "type": "output",
        "description": "SerDes MAC receiver output pair, negative leg, for PHY 0 (ODIFF)."
      },
      {
        "number": "R1",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "R2",
        "name": "FIBR_DOP_3",
        "type": "output",
        "description": "SerDes media transmitter output pair, positive leg, for PHY 3 (ODIFF)."
      },
      {
        "number": "R3",
        "name": "FIBR_DIP_3",
        "type": "input",
        "description": "SerDes media receiver input pair, positive leg, for PHY 3 (IDIFF)."
      },
      {
        "number": "R4",
        "name": "RDP_3",
        "type": "output",
        "description": "SerDes MAC receiver output pair, positive leg, for PHY 3 (ODIFF)."
      },
      {
        "number": "R5",
        "name": "TDP_3",
        "type": "input",
        "description": "SerDes MAC transmitter input pair, positive leg, for PHY 3 (IDIFF)."
      },
      {
        "number": "R6",
        "name": "FIBR_DOP_2",
        "type": "output",
        "description": "SerDes media transmitter output pair, positive leg, for PHY 2 (ODIFF)."
      },
      {
        "number": "R7",
        "name": "FIBR_DIP_2",
        "type": "input",
        "description": "SerDes media receiver input pair, positive leg, for PHY 2 (IDIFF)."
      },
      {
        "number": "R8",
        "name": "RDP_2",
        "type": "output",
        "description": "SerDes MAC receiver output pair, positive leg, for PHY 2 (ODIFF)."
      },
      {
        "number": "R9",
        "name": "TDP_2",
        "type": "input",
        "description": "SerDes MAC transmitter input pair, positive leg, for PHY 2 (IDIFF)."
      },
      {
        "number": "R10",
        "name": "FIBR_DOP_1",
        "type": "output",
        "description": "SerDes media transmitter output pair, positive leg, for PHY 1 (ODIFF)."
      },
      {
        "number": "R11",
        "name": "FIBR_DIP_1",
        "type": "input",
        "description": "SerDes media receiver input pair, positive leg, for PHY 1 (IDIFF)."
      },
      {
        "number": "R12",
        "name": "RDP_1",
        "type": "output",
        "description": "SerDes MAC receiver output pair, positive leg, for PHY 1 (ODIFF)."
      },
      {
        "number": "R13",
        "name": "TDP_1",
        "type": "input",
        "description": "SerDes MAC transmitter input pair, positive leg, for PHY 1 (IDIFF)."
      },
      {
        "number": "R14",
        "name": "FIBR_DOP_0",
        "type": "output",
        "description": "SerDes media transmitter output pair, positive leg, for PHY 0 (ODIFF)."
      },
      {
        "number": "R15",
        "name": "FIBR_DIP_0",
        "type": "input",
        "description": "SerDes media receiver input pair, positive leg, for PHY 0 (IDIFF)."
      },
      {
        "number": "R16",
        "name": "VSS",
        "type": "power_in",
        "description": "0 V general device ground."
      },
      {
        "number": "T1",
        "name": "NC",
        "type": "unconnected",
        "description": "No-connect ball; leave floating and do not connect it to other pins or ground."
      },
      {
        "number": "T2",
        "name": "FIBR_DON_3",
        "type": "output",
        "description": "SerDes media transmitter output pair, negative leg, for PHY 3 (ODIFF)."
      },
      {
        "number": "T3",
        "name": "FIBR_DIN_3",
        "type": "input",
        "description": "SerDes media receiver input pair, negative leg, for PHY 3 (IDIFF)."
      },
      {
        "number": "T4",
        "name": "RDN_3",
        "type": "output",
        "description": "SerDes MAC receiver output pair, negative leg, for PHY 3 (ODIFF)."
      },
      {
        "number": "T5",
        "name": "TDN_3",
        "type": "input",
        "description": "SerDes MAC transmitter input pair, negative leg, for PHY 3 (IDIFF)."
      },
      {
        "number": "T6",
        "name": "FIBR_DON_2",
        "type": "output",
        "description": "SerDes media transmitter output pair, negative leg, for PHY 2 (ODIFF)."
      },
      {
        "number": "T7",
        "name": "FIBR_DIN_2",
        "type": "input",
        "description": "SerDes media receiver input pair, negative leg, for PHY 2 (IDIFF)."
      },
      {
        "number": "T8",
        "name": "RDN_2",
        "type": "output",
        "description": "SerDes MAC receiver output pair, negative leg, for PHY 2 (ODIFF)."
      },
      {
        "number": "T9",
        "name": "TDN_2",
        "type": "input",
        "description": "SerDes MAC transmitter input pair, negative leg, for PHY 2 (IDIFF)."
      },
      {
        "number": "T10",
        "name": "FIBR_DON_1",
        "type": "output",
        "description": "SerDes media transmitter output pair, negative leg, for PHY 1 (ODIFF)."
      },
      {
        "number": "T11",
        "name": "FIBR_DIN_1",
        "type": "input",
        "description": "SerDes media receiver input pair, negative leg, for PHY 1 (IDIFF)."
      },
      {
        "number": "T12",
        "name": "RDN_1",
        "type": "output",
        "description": "SerDes MAC receiver output pair, negative leg, for PHY 1 (ODIFF)."
      },
      {
        "number": "T13",
        "name": "TDN_1",
        "type": "input",
        "description": "SerDes MAC transmitter input pair, negative leg, for PHY 1 (IDIFF)."
      },
      {
        "number": "T14",
        "name": "FIBR_DON_0",
        "type": "output",
        "description": "SerDes media transmitter output pair, negative leg, for PHY 0 (ODIFF)."
      },
      {
        "number": "T15",
        "name": "FIBR_DIN_0",
        "type": "input",
        "description": "SerDes media receiver input pair, negative leg, for PHY 0 (IDIFF)."
      },
      {
        "number": "T16",
        "name": "NC",
        "type": "unconnected",
        "description": "No-connect ball; leave floating and do not connect it to other pins or ground."
      }
    ],
    "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 supplied datasheet excerpt does not include pages 96-99, which hold the rest of the 'Pins by Num; Pin types were mapped to KiCad ERC classes from the datasheet's pin-type symbols (Table 89). MDIO is; Supply pins (VDD33, VDD12, VDD12A, VDDIO, VSS) are typed power_in as instructed. The datasheet gives",
          "13/256 pins cited to the wrong page (name found elsewhere): ['C1:XTAL2@p91', 'G1:LED0_0@p90', 'G2:LED1_0@p90', 'G3:LED2_0@p90']"
        ],
        "pages_sent": 31,
        "cost_usd": 0.3389,
        "at": "2026-10-30T22:50:00"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/319bba66921c016efe32634e861eebbd.pdf",
        "pages": 108,
        "sha256": "9cf43c1020671c57",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 256,
        "described": 256,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "vsc8664xic.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          17.0,
          17.0,
          1.512
        ],
        "zmin_mm": -0.01,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "553c92ac1c6a0bb5ff34fa58e8bb12e53112a874fdd563ca32d0da03b503ddd0",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "vsc8664xic-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          17.0,
          17.0,
          1.512
        ],
        "zmin_mm": -0.01,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "583b313402417b41554b53b580805f5d7ed45bf4958f8726f333cc51dfcb85b9",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "BGA-256 (17x17)",
      "source_page": 102,
      "D": {
        "nom_mm": 17.0,
        "range_mm": [
          null,
          null
        ]
      },
      "E1": {
        "nom_mm": 17.0,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 1.0,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 2.0,
        "range_mm": [
          null,
          2.0
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "vsc8664xic.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}