KSZ8794CNXCC

{
  "schema_version": 1,
  "type": "component",
  "slug": "ksz8794cnxcc",
  "title": "KSZ8794CNXCC",
  "brief": "Microchip Tech Ethernet ICs, QFN-64-EP(8x8). 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",
    "ksz8794cnxcc",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "KSZ8794CNXCC",
    "manufacturer": "Microchip Tech",
    "package": "QFN-64-EP(8x8)",
    "pin_count": 65,
    "category": "Interface ICs",
    "subcategory": "Ethernet ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/baa75dd88ac85e471d21f4f907510881.pdf",
    "parts": {
      "symbol": "ksz8794cnxcc.kicad_sym",
      "footprint": "ksz8794cnxcc.kicad_mod",
      "model_3d": "ksz8794cnxcc-hero.glb",
      "model_3d_plain": "ksz8794cnxcc-etched.glb",
      "model_3d_step": "ksz8794cnxcc-etched.step",
      "model_3d_step_plain": "ksz8794cnxcc.step",
      "lbr": "ksz8794cnxcc.lbr"
    },
    "distributor_links": {
      "lcsc": "C633468",
      "digikey": "576-4851-ND",
      "mouser": "998-KSZ8794CNXCC"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T20:55:06Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "576-4851-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "998-KSZ8794CNXCC",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD12A",
        "type": "power_in",
        "description": "1.2V core power."
      },
      {
        "number": "2",
        "name": "VDDAT",
        "type": "power_in",
        "description": "3.3V or 2.5V analog power."
      },
      {
        "number": "3",
        "name": "GNDA",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "4",
        "name": "RXP1",
        "type": "input",
        "description": "Port 1 physical receive signal + (differential)."
      },
      {
        "number": "5",
        "name": "RXM1",
        "type": "input",
        "description": "Port 1 physical receive signal - (differential)."
      },
      {
        "number": "6",
        "name": "TXP1",
        "type": "output",
        "description": "Port 1 physical transmit signal + (differential)."
      },
      {
        "number": "7",
        "name": "TXM1",
        "type": "output",
        "description": "Port 1 physical transmit signal - (differential)."
      },
      {
        "number": "8",
        "name": "RXP2",
        "type": "input",
        "description": "Port 2 physical receive signal + (differential)."
      },
      {
        "number": "9",
        "name": "RXM2",
        "type": "input",
        "description": "Port 2 physical receive signal - (differential)."
      },
      {
        "number": "10",
        "name": "TXP2",
        "type": "output",
        "description": "Port 2 physical transmit signal + (differential)."
      },
      {
        "number": "11",
        "name": "TXM2",
        "type": "output",
        "description": "Port 2 physical transmit signal - (differential)."
      },
      {
        "number": "12",
        "name": "VDDAT",
        "type": "power_in",
        "description": "3.3V or 2.5V analog power."
      },
      {
        "number": "13",
        "name": "RXP3",
        "type": "input",
        "description": "Port 3 physical receive signal + (differential)."
      },
      {
        "number": "14",
        "name": "RXM3",
        "type": "input",
        "description": "Port 3 physical receive signal - (differential)."
      },
      {
        "number": "15",
        "name": "TXP3",
        "type": "output",
        "description": "Port 3 physical transmit signal + (differential)."
      },
      {
        "number": "16",
        "name": "TXM3",
        "type": "output",
        "description": "Port 3 physical transmit signal - (differential)."
      },
      {
        "number": "17",
        "name": "GNDA",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "18",
        "name": "INTR_N",
        "type": "output",
        "description": "Active-low open-drain interrupt output; needs an external pull-up resistor when in use."
      },
      {
        "number": "19",
        "name": "LED3_1",
        "type": "bidirectional",
        "description": "Port 3 LED indicator 1 (internal pull-up during reset); strap with LED3_0 selects Port 4 GMAC4 mode: 00=MII, 01=RMII, 10=Reserved, 11=RGMII (default)."
      },
      {
        "number": "20",
        "name": "LED3_0",
        "type": "bidirectional",
        "description": "Port 3 LED indicator 0 (internal pull-up during reset); strap option, see LED3_1 for GMAC4 interface mode select."
      },
      {
        "number": "21",
        "name": "VDD12D",
        "type": "power_in",
        "description": "1.2V core power."
      },
      {
        "number": "22",
        "name": "GNDD",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "23",
        "name": "TXEN4/TXD4_CTL",
        "type": "input",
        "description": "Port 4 transmit enable in MII/RMII, transmit data control in RGMII; internal pull-down."
      },
      {
        "number": "24",
        "name": "TXD4_0",
        "type": "input",
        "description": "Port 4 switch transmit bit [0] for RGMII/MII/RMII; internal pull-down."
      },
      {
        "number": "25",
        "name": "TXD4_1",
        "type": "input",
        "description": "Port 4 switch transmit bit [1] for RGMII/MII/RMII; internal pull-down."
      },
      {
        "number": "26",
        "name": "GNDD",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "27",
        "name": "VDDIO",
        "type": "power_in",
        "description": "3.3V, 2.5V, or 1.8V digital VDD for digital I/O circuitry."
      },
      {
        "number": "28",
        "name": "TXD4_2",
        "type": "input",
        "description": "Port 4 switch transmit bit [2] for RGMII/MII; no connection in RMII; internal pull-down."
      },
      {
        "number": "29",
        "name": "TXD4_3",
        "type": "input",
        "description": "Port 4 switch transmit bit [3] for RGMII/MII; no connection in RMII; internal pull-down."
      },
      {
        "number": "30",
        "name": "TXER4",
        "type": "input",
        "description": "Port 4 switch transmit error in MII; no connection in RGMII/RMII; internal pull-down."
      },
      {
        "number": "31",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "32",
        "name": "GNDD",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "33",
        "name": "VDD12D",
        "type": "power_in",
        "description": "1.2V core power."
      },
      {
        "number": "34",
        "name": "TXC4/REFCLKI4/GTXC4",
        "type": "bidirectional",
        "description": "Port 4 GMAC4 clock: MII 2.5/25 MHz (output in PHY mode, input in MAC mode), RMII 50 MHz clock input in normal mode, RGMII 125 MHz clock input."
      },
      {
        "number": "35",
        "name": "RXC4/GRXC4",
        "type": "bidirectional",
        "description": "Port 4 GMAC4 clock: MII 2.5/25 MHz (output in PHY mode, input in MAC mode), RMII 50 MHz reference clock output in clock mode, RGMII 125 MHz clock output."
      },
      {
        "number": "36",
        "name": "RXD4_0",
        "type": "bidirectional",
        "description": "Port 4 switch receive bit [0] for RGMII/MII/RMII; input with internal pull-down during reset, output otherwise."
      },
      {
        "number": "37",
        "name": "RXD4_1",
        "type": "bidirectional",
        "description": "Port 4 switch receive bit [1] for RGMII/MII/RMII; input with internal pull-down during reset, output otherwise."
      },
      {
        "number": "38",
        "name": "GNDD",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "39",
        "name": "VDDIO",
        "type": "power_in",
        "description": "3.3V, 2.5V, or 1.8V digital VDD for digital I/O circuitry."
      },
      {
        "number": "40",
        "name": "RXD4_2",
        "type": "bidirectional",
        "description": "Port 4 switch receive bit [2] for RGMII/MII; no connection in RMII; input with internal pull-down during reset, output otherwise."
      },
      {
        "number": "41",
        "name": "RXD4_3",
        "type": "bidirectional",
        "description": "Port 4 switch receive bit [3] for RGMII/MII; no connection in RMII; input with internal pull-down during reset, output otherwise."
      },
      {
        "number": "42",
        "name": "RXDV4/CRSDV4/RXD4_CTL",
        "type": "bidirectional",
        "description": "Port 4 receive data valid (MII), carrier sense/receive data valid (RMII), or receive data control (RGMII); input with internal pull-down during reset, output otherwise."
      },
      {
        "number": "43",
        "name": "RXER4",
        "type": "bidirectional",
        "description": "Port 4 switch receive error in MII; no connection in RGMII/RMII; input with internal pull-down during reset, output otherwise."
      },
      {
        "number": "44",
        "name": "CRS4",
        "type": "bidirectional",
        "description": "Port 4 MII carrier sense; no connection in RGMII/RMII; input with internal pull-down during reset, output otherwise."
      },
      {
        "number": "45",
        "name": "COL4",
        "type": "bidirectional",
        "description": "Port 4 MII collision detect; no connection in RGMII/RMII; input with internal pull-down during reset, output otherwise."
      },
      {
        "number": "46",
        "name": "REFCLKO",
        "type": "bidirectional",
        "description": "25 MHz clock output (optional), enabled by default and controlled by strap pin LED2_0; better disabled if unused."
      },
      {
        "number": "47",
        "name": "PME_N",
        "type": "bidirectional",
        "description": "Power management event signal indicating a Wake-on-LAN event was detected; polarity programmable, default active low."
      },
      {
        "number": "48",
        "name": "LED2_1",
        "type": "bidirectional",
        "description": "Port 2 LED indicator 1; strap selects Port 4 MII mode (PU=MAC, PD=PHY) or RMII mode (PU=clock mode providing 50 MHz from RXC4, PD=normal mode with external 50 MHz clock)."
      },
      {
        "number": "49",
        "name": "LED2_0",
        "type": "bidirectional",
        "description": "Port 2 LED indicator 0; strap enables REFCLKO 25 MHz output (PU=enabled default, PD=disabled)."
      },
      {
        "number": "50",
        "name": "LED1_1",
        "type": "bidirectional",
        "description": "Port 1 LED indicator 1; strap selects PLL clock source (PU=25 MHz XI/XO clock, PD=external clock from TXC4 in Port 4 RMII normal mode)."
      },
      {
        "number": "51",
        "name": "LED1_0",
        "type": "bidirectional",
        "description": "Port 1 LED indicator 0; strap selects RGMII speed (PU=1 Gbps default, PD=10/100 Mbps)."
      },
      {
        "number": "52",
        "name": "SPIQ",
        "type": "bidirectional",
        "description": "SPI serial data output in SPI slave mode; strap selects serial bus (PD=SPI slave mode, PU=MDC/MDIO mode) and requires an external pull-up or pull-down resistor."
      },
      {
        "number": "53",
        "name": "SCL_MDC",
        "type": "input",
        "description": "Clock for SPI (up to 50 MHz in SPI slave mode) or MDC/MDIO (up to 25 MHz) interfaces; internal pull-up."
      },
      {
        "number": "54",
        "name": "SDA_MDIO",
        "type": "bidirectional",
        "description": "Serial data input in SPI slave mode or MDC/MDIO input/output data line."
      },
      {
        "number": "55",
        "name": "SPIS_N",
        "type": "input",
        "description": "Active-low SPI chip select; when high the device is deselected and SPIQ is high impedance, a high-to-low transition starts SPI transfer."
      },
      {
        "number": "56",
        "name": "VDDIO",
        "type": "power_in",
        "description": "3.3V, 2.5V, or 1.8V digital VDD for digital I/O circuitry."
      },
      {
        "number": "57",
        "name": "GNDD",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "58",
        "name": "RST_N",
        "type": "input",
        "description": "Active-low hardware reset with internal pull-up."
      },
      {
        "number": "59",
        "name": "VDD12D",
        "type": "power_in",
        "description": "1.2V core power."
      },
      {
        "number": "60",
        "name": "VDDAT",
        "type": "power_in",
        "description": "3.3V or 2.5V analog power."
      },
      {
        "number": "61",
        "name": "ISET",
        "type": "passive",
        "description": "Transmit output current set; connect to GND through a 12.4 kΩ 1% resistor."
      },
      {
        "number": "62",
        "name": "GNDA",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "63",
        "name": "XI",
        "type": "input",
        "description": "Crystal/oscillator input; connect to a 25 MHz crystal or 3.3V oscillator output with ±50 ppm tolerance."
      },
      {
        "number": "64",
        "name": "XO",
        "type": "output",
        "description": "Crystal clock output; connects to one end of the 25 MHz crystal circuit."
      },
      {
        "number": "65",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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 provided pages do not list an exposed pad pin or its connection, so no EP pin was output. The pa; Pin 43 is named RXER in Table 2-1 but RXER4 in Figure 2-1. RXER4 was used.; Pins 2, 12 and 60 are named VDDAT in Table 2-1 but VDDAT33 in Figure 2-1. VDDAT was used.",
          "2/65 pins cited to the wrong page (name found elsewhere): ['63:XI@p10', '64:XO@p10']"
        ],
        "pages_sent": 23,
        "cost_usd": 0.2847,
        "at": "2026-10-30T20:54:56"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/baa75dd88ac85e471d21f4f907510881.pdf",
        "pages": 124,
        "sha256": "15cba2ada6d300b8",
        "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": "ksz8794cnxcc.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8,
          8,
          0.87
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "553641350988a3d949874ef3cbbe3efa6e239859177963f45ba4e900f4c74ccf",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ksz8794cnxcc-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8,
          8,
          0.87
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1b86f9fd6d0b30cd030074c902379399fa382ca202e586db226186587d838fb8",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "QFN-64-EP(8x8)",
      "Category": "Interface ICs",
      "Pins": "65"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "15cba2ada6d300b809557a8b701c5abd0567e96cdaa17b2a3cf642bf28b1f192",
      "rows": [
        {
          "name": "Supply Voltage VDD12A, VDD12D (abs max)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 1.8,
          "conditions": "VDD12A, VDD12D",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage VDDAT, VDDIO (abs max)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 4,
          "conditions": "VDDAT, VDDIO",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (abs max)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage (abs max)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "soldering, 10s",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TS",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "ESD Rating (HBM)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "HBM",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Operating Supply Voltage VDD12A, VDD12D",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.14,
          "typ": null,
          "max": 1.26,
          "conditions": "VDD12A, VDD12D",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Operating Supply Voltage VDDAT @ 3.3V",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.135,
          "typ": null,
          "max": 3.465,
          "conditions": "VDDAT @ 3.3V",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Operating Supply Voltage VDDAT @ 2.5V",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.375,
          "typ": null,
          "max": 2.625,
          "conditions": "VDDAT @ 2.5V",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Operating Supply Voltage VDDIO @ 3.3V",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.135,
          "typ": null,
          "max": 3.465,
          "conditions": "VDDIO @ 3.3V",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Operating Supply Voltage VDDIO @ 2.5V",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.375,
          "typ": null,
          "max": 2.625,
          "conditions": "VDDIO @ 2.5V",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Operating Supply Voltage VDDIO @ 1.8V",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.71,
          "typ": null,
          "max": 1.89,
          "conditions": "VDDIO @ 1.8V",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature (Commercial)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 70,
          "conditions": "Commercial",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance",
          "symbol": "ΘJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 31.96,
          "max": null,
          "conditions": "Note 5-1: air velocity 0m/s, ePad",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance",
          "symbol": "ΘJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 13.54,
          "max": null,
          "conditions": "Note 5-1: air velocity 0m/s, ePad",
          "source_page": 106,
          "source": "datasheet"
        },
        {
          "name": "Input High Voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
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