RTL8211EG-VB-CG

{
  "schema_version": 1,
  "type": "component",
  "slug": "rtl8211eg-vb-cg",
  "title": "RTL8211EG-VB-CG",
  "brief": "Realtek Semicon Ethernet Transceivers, 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",
    "rtl8211eg-vb-cg",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "RTL8211EG-VB-CG",
    "manufacturer": "Realtek Semicon",
    "package": "QFN-64-EP(9x9)",
    "pin_count": 65,
    "category": "Interface",
    "subcategory": "Ethernet Transceivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588858394518163456",
    "parts": {
      "symbol": "rtl8211eg-vb-cg.kicad_sym",
      "footprint": "rtl8211eg-vb-cg.kicad_mod",
      "model_3d": "rtl8211eg-vb-cg-hero.glb",
      "model_3d_plain": "rtl8211eg-vb-cg-etched.glb",
      "model_3d_step": "rtl8211eg-vb-cg-etched.step",
      "model_3d_step_plain": "rtl8211eg-vb-cg.step",
      "lbr": "rtl8211eg-vb-cg.lbr"
    },
    "distributor_links": {
      "lcsc": "C69264"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T18:49:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CLK125",
        "type": "output",
        "description": "125MHz reference clock generated from the internal PLL; keep floating if the MAC does not use it."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "3",
        "name": "REG_OUT",
        "type": "output",
        "description": "Switching regulator 1.05V output, connect to a 2.2µH or 4.7µH inductor."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "5",
        "name": "MDI[0]+",
        "type": "bidirectional",
        "description": "MDI pair 0 positive: BI_DA+/- in MDI mode (first pair in 1000Base-T) and transmit pair in 10/100 MDI mode, acting as BI_DB+/- receive pair in MDI crossover mode."
      },
      {
        "number": "6",
        "name": "MDI[0]-",
        "type": "bidirectional",
        "description": "MDI pair 0 negative: BI_DA+/- in MDI mode (first pair in 1000Base-T) and transmit pair in 10/100 MDI mode, acting as BI_DB+/- receive pair in MDI crossover mode."
      },
      {
        "number": "7",
        "name": "AVDD10",
        "type": "power_in",
        "description": "Analog 1.05V power supply; also the feedback pin for the switching regulator."
      },
      {
        "number": "8",
        "name": "MDI[1]+",
        "type": "bidirectional",
        "description": "MDI pair 1 positive: BI_DB+/- in MDI mode and receive pair in 10/100 MDI mode, acting as BI_DA+/- transmit pair in MDI crossover mode."
      },
      {
        "number": "9",
        "name": "MDI[1]-",
        "type": "bidirectional",
        "description": "MDI pair 1 negative: BI_DB+/- in MDI mode and receive pair in 10/100 MDI mode, acting as BI_DA+/- transmit pair in MDI crossover mode."
      },
      {
        "number": "10",
        "name": "AVDD33",
        "type": "power_in",
        "description": "Analog 3.3V power supply."
      },
      {
        "number": "11",
        "name": "MDI[2]+",
        "type": "bidirectional",
        "description": "MDI pair 2 positive: BI_DC+/- in MDI mode and BI_DD+/- in MDI crossover mode."
      },
      {
        "number": "12",
        "name": "MDI[2]-",
        "type": "bidirectional",
        "description": "MDI pair 2 negative: BI_DC+/- in MDI mode and BI_DD+/- in MDI crossover mode."
      },
      {
        "number": "13",
        "name": "AVDD10",
        "type": "power_in",
        "description": "Analog 1.05V power supply."
      },
      {
        "number": "14",
        "name": "MDI[3]+",
        "type": "bidirectional",
        "description": "MDI pair 3 positive: BI_DD+/- in MDI mode and BI_DC+/- in MDI crossover mode."
      },
      {
        "number": "15",
        "name": "MDI[3]-",
        "type": "bidirectional",
        "description": "MDI pair 3 negative: BI_DD+/- in MDI mode and BI_DC+/- in MDI crossover mode."
      },
      {
        "number": "16",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "18",
        "name": "RXDV/PHY_AD2",
        "type": "output",
        "description": "Receive data valid to the MAC in RGMII/GMII mode; sampled at power-up/reset as PHY address bit 2, which must be pulled high or low through a resistor (e.g., 4.7kΩ)."
      },
      {
        "number": "19",
        "name": "RXD0",
        "type": "output",
        "description": "Receive data bit 0 from PHY to MAC (RXD[3:0] in RGMII, RXD[7:0] in GMII), latched at power-up/reset."
      },
      {
        "number": "20",
        "name": "DVDD33",
        "type": "power_in",
        "description": "Digital I/O power supply, 3.3V or 2.5V for RGMII/GMII I/O on RTL8211EG-VB."
      },
      {
        "number": "21",
        "name": "RXD1",
        "type": "output",
        "description": "Receive data bit 1 from PHY to MAC, latched at power-up/reset."
      },
      {
        "number": "22",
        "name": "RXD2",
        "type": "output",
        "description": "Receive data bit 2 from PHY to MAC, latched at power-up/reset."
      },
      {
        "number": "23",
        "name": "RXD3",
        "type": "output",
        "description": "Receive data bit 3 from PHY to MAC, latched at power-up/reset."
      },
      {
        "number": "24",
        "name": "RXC",
        "type": "output",
        "description": "Continuous receive reference clock of 125MHz, 25MHz or 2.5MHz, derived from the received data stream."
      },
      {
        "number": "25",
        "name": "RXD4/SELRGV",
        "type": "output",
        "description": "Receive data bit 4 in GMII mode; sampled at reset as SELRGV, pull up for 3.3V RGMII/GMII and pull down for 2.5V RGMII/GMII."
      },
      {
        "number": "26",
        "name": "DVDD33",
        "type": "power_in",
        "description": "Digital I/O power supply, 3.3V or 2.5V for RGMII/GMII I/O on RTL8211EG-VB."
      },
      {
        "number": "27",
        "name": "RXD5/TXDLY",
        "type": "output",
        "description": "Receive data bit 5 in GMII mode; sampled at reset as RGMII transmit clock timing control (1 adds 2ns delay to TXC for TXD latching)."
      },
      {
        "number": "28",
        "name": "RXD6/RXDLY",
        "type": "output",
        "description": "Receive data bit 6 in GMII mode; sampled at reset as RGMII receive clock timing control (1 adds 2ns delay to RXC for RXD latching)."
      },
      {
        "number": "29",
        "name": "RXD7/AN0",
        "type": "output",
        "description": "Receive data bit 7 in GMII mode; sampled at reset as auto-negotiation configuration bit AN[0]."
      },
      {
        "number": "30",
        "name": "RXER/AN1",
        "type": "output",
        "description": "Receive error in GMII mode; sampled at reset as auto-negotiation configuration bit AN[1]."
      },
      {
        "number": "31",
        "name": "COL/Mode",
        "type": "output",
        "description": "Collision indication in half-duplex GMII mode; sampled at reset as RGMII/GMII mode select (pull up for RGMII, pull down for GMII)."
      },
      {
        "number": "32",
        "name": "CRS",
        "type": "output",
        "description": "Carrier sense output."
      },
      {
        "number": "33",
        "name": "DVDD10",
        "type": "power_in",
        "description": "Digital power supply, 1.05V."
      },
      {
        "number": "34",
        "name": "GTX_CLK",
        "type": "input",
        "description": "Transmit reference clock input from MAC, 125MHz in GMII and RGMII modes."
      },
      {
        "number": "35",
        "name": "TXEN",
        "type": "input",
        "description": "Transmit enable from MAC (GMII), and transmit control signal from MAC in RGMII mode."
      },
      {
        "number": "36",
        "name": "TXD0",
        "type": "input",
        "description": "Transmit data bit 0 from MAC; internal pull-down during power-on reset."
      },
      {
        "number": "37",
        "name": "DVDD33",
        "type": "power_in",
        "description": "Digital I/O power supply, 3.3V or 2.5V for RGMII/GMII I/O on RTL8211EG-VB."
      },
      {
        "number": "38",
        "name": "PHYRSTB",
        "type": "input",
        "description": "Hardware reset, active low; must be asserted low for at least 10ms for a complete PHY reset, which clears all registers."
      },
      {
        "number": "39",
        "name": "TXD1",
        "type": "input",
        "description": "Transmit data bit 1 from MAC; internal pull-down during power-on reset."
      },
      {
        "number": "40",
        "name": "TXD2",
        "type": "input",
        "description": "Transmit data bit 2 from MAC; internal pull-down during power-on reset."
      },
      {
        "number": "41",
        "name": "TXD3",
        "type": "input",
        "description": "Transmit data bit 3 from MAC; internal pull-up during power-on reset."
      },
      {
        "number": "42",
        "name": "TXCLK",
        "type": "output",
        "description": "GMII transmit reference clock output, 25MHz or 2.5MHz depending on speed."
      },
      {
        "number": "43",
        "name": "TXD4",
        "type": "input",
        "description": "GMII transmit data bit 4 from MAC."
      },
      {
        "number": "44",
        "name": "TXD5",
        "type": "input",
        "description": "GMII transmit data bit 5 from MAC."
      },
      {
        "number": "45",
        "name": "TXD6",
        "type": "input",
        "description": "GMII transmit data bit 6 from MAC."
      },
      {
        "number": "46",
        "name": "TXD7",
        "type": "input",
        "description": "GMII transmit data bit 7 from MAC."
      },
      {
        "number": "47",
        "name": "TXER",
        "type": "input",
        "description": "Transmit error from MAC; connect to GND if the MAC has no TXER pin."
      },
      {
        "number": "48",
        "name": "DVDD10",
        "type": "power_in",
        "description": "Digital power supply, 1.05V."
      },
      {
        "number": "49",
        "name": "DVDD33",
        "type": "power_in",
        "description": "Digital power supply, 3.3V."
      },
      {
        "number": "50",
        "name": "PHY_AD0/LED0",
        "type": "output",
        "description": "PHY address bit 0 sampled at power-up/reset (pull-up through resistor), also LED0 output which blinks while transmitting or receiving."
      },
      {
        "number": "51",
        "name": "PHY_AD1/LED1",
        "type": "output",
        "description": "PHY address bit 1 sampled at power-up/reset (pull-down through resistor), also LED1 output which is low for link up and high for link down at any speed."
      },
      {
        "number": "52",
        "name": "LED2",
        "type": "output",
        "description": "LED2 output with no default setting, configurable through the extension page LED registers."
      },
      {
        "number": "53",
        "name": "MDC",
        "type": "input",
        "description": "Management data clock input for the MDC/MDIO management interface (internal pull-up)."
      },
      {
        "number": "54",
        "name": "MDIO",
        "type": "bidirectional",
        "description": "Management data input/output, pulled up to 3.3V or 2.5V matching the RGMII/GMII signaling voltage."
      },
      {
        "number": "55",
        "name": "PMEB",
        "type": "output",
        "description": "Open-drain power management event output, set low on receipt of a magic packet or wake-up frame; supports 3.3V and 5V pull-up and may be left floating if unused."
      },
      {
        "number": "56",
        "name": "INTB",
        "type": "output",
        "description": "Open-drain interrupt output, set low on a status change (active low); may be left floating if unused."
      },
      {
        "number": "57",
        "name": "ENSWREG",
        "type": "input",
        "description": "Switching regulator enable: 3.3V enables the regulator and 0V disables it."
      },
      {
        "number": "58",
        "name": "RSET",
        "type": "output",
        "description": "External resistor reference pin."
      },
      {
        "number": "59",
        "name": "AVDD10",
        "type": "power_in",
        "description": "Analog power supply, 1.05V."
      },
      {
        "number": "60",
        "name": "AVDD33",
        "type": "power_in",
        "description": "Analog power supply, 3.3V."
      },
      {
        "number": "61",
        "name": "CKXTAL1",
        "type": "input",
        "description": "25/50MHz crystal input; connect to the oscillator output if an external 25/50MHz oscillator is used."
      },
      {
        "number": "62",
        "name": "CKXTAL2",
        "type": "output",
        "description": "25/50MHz crystal output; connect to GND if an external 25/50MHz oscillator drives CKXTAL1."
      },
      {
        "number": "63",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "64",
        "name": "VDDREG",
        "type": "power_in",
        "description": "Analog 3.3V power supply for the switching regulator."
      },
      {
        "number": "65",
        "name": "GND",
        "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-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 exposed pad (E-Pad) is not a numbered pin in the datasheet. Section 6.10 says it is the analog a; The package hint says QFN-64-EP(9x9). The 64-pin QFN and its exposed pad are confirmed, but the 9x9 ; The Figure 6 pin map text is scrambled, so the pin-to-name mapping was built from the 64-pin columns",
          "exposed pad 65 added from the footprint"
        ],
        "pages_sent": 25,
        "cost_usd": 0.1567,
        "at": "2026-10-20T18:48:09"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588858394518163456",
        "pages": 79,
        "sha256": "b081006e6619ba24",
        "source_tier": "lcsc"
      },
      "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": "rtl8211eg-vb-cg.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": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rtl8211eg-vb-cg-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": "2ae597dda13566c0f849b3868adcd0d68abb0913ff53bad3b1b7331d27affb88",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Realtek Semicon",
      "Package": "QFN-64-EP(9x9)",
      "Category": "Interface",
      "Pins": "65"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b081006e6619ba24b38be4959675e36748ad3f80053f27e9319b38a44620fa3c",
      "rows": [
        {
          "name": "Supply voltage DVDD33, AVDD33 (3.3V)",
          "symbol": "VDD33",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.4,
          "typ": null,
          "max": 3.7,
          "conditions": "",
          "source_page": 65,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage AVDD10, DVDD10 (1.05V)",
          "symbol": "AVDD10, DVDD10",
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          "max": 1.26,
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          "source": "datasheet"
        },
        {
          "name": "2.5V RGMII/GMII supply voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.2,
          "typ": null,
          "max": 2.8,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Supply voltage DVDD33, AVDD33",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.97,
          "typ": 3.3,
          "max": 3.63,
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          "source": "datasheet"
        },
        {
          "name": "Supply voltage AVDD10, DVDD10",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0.95,
          "typ": 1.05,
          "max": 1.09,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "2.5V RGMII/GMII supply voltage",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.4,
          "typ": 2.5,
          "max": 2.62,
          "conditions": "",
          "source_page": 65,
          "source": "datasheet"
        },
        {
          "name": "Ambient operating temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 65,
          "source": "datasheet"
        },
        {
          "name": "Maximum junction temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 65,
          "source": "datasheet"
        },
        {
          "name": "3.3V supply voltage (DC table)",
          "symbol": "VDD33",
          "kind": "electrical",
          "unit": "V",
          "min": 2.97,
          "typ": 3.3,
          "max": 3.63,
          "conditions": "",
          "source_page": 67,
          "source": "datasheet"
        },
        {
          "name": "2.5V RGMII/GMII supply voltage (DC table)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.37,
          "typ": 2.5,
          "max": 2.62,
          "conditions": "",
          "source_page": 67,
          "source": "datasheet"
        },
        {
          "name": "1.05V supply voltage (DC table)",
          "symbol": "DVDD10, AVDD10",
          "kind": "electrical",
          "unit": "V",
          "min": 0.95,
          "typ": 1.05,
          "max": 1.09,
          "conditions": "",
          "source_page": 67,
          "source": "datasheet"
        },
        {
          "name": "Minimum high level input voltage (3.3V)",
          "symbol": "Vih (3.3V)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 67,
          "source": "datasheet"
        },
        {
          "name": "Maximum low level input voltage (3.3V)",
          "symbol": "Vil (3.3V)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.9,
          "conditions": "",
          "source_page": 67,
          "source": "datasheet"
        },
        {
          "name": "Minimum high level input voltage (2.5V)",
          "symbol": "Vih (2.5V)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.7,
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          "max": null,
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          "source_page": 67,
          "source": "datasheet"
        },
        {
          "name": "Maximum low level input voltage (2.5V)",
          "symbol": "Vil (2.5V)",
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          "max": 0.7,
          "conditions": "",
          "source_page": 67,
          "source": "datasheet"
        },
        {
          "name": "Input current",
          "symbol": "Iin",
          "kind": "electrical",
          "unit": "µA",
          "min": 0,
          "typ": null,
          "max": 0.5,
          "conditions": "Vin=VDD33 or GND",
          "source_page": 67,
          "source": "datasheet"
        },
        {
          "name": "Parallel resonant crystal reference frequency",
          "symbol": "Fref",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 25,
          "max": null,
          "conditions": "Parallel resonant, fundamental mode, AT-cut",
          "source_page": 66,
          "source": "datasheet"
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