RTL8306MB-CG

{
  "slug": "rtl8306mb-cg",
  "version": "0.1.0",
  "type": "component",
  "description": "Realtek Semicon Ethernet ICs, QFN-64-EP(9x9). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "rtl8306mb-cg",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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    "README.md",
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    "rtl8306mb-cg.step",
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    "docs/rtl8306mb-cg-datasheet.pdf",
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  "component": {
    "mpn": "RTL8306MB-CG",
    "manufacturer": "Realtek Semicon",
    "package": "QFN-64-EP(9x9)",
    "pin_count": 65,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "Ethernet ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/006af71e49bacb3dcc415183af1bcbf8.pdf",
    "parts": {
      "symbol": "rtl8306mb-cg.kicad_sym",
      "footprint": "rtl8306mb-cg.kicad_mod",
      "model_3d": "rtl8306mb-cg-hero.glb",
      "model_3d_plain": "rtl8306mb-cg-etched.glb",
      "model_3d_step": "rtl8306mb-cg-etched.step",
      "model_3d_step_plain": "rtl8306mb-cg.step",
      "lbr": "rtl8306mb-cg.lbr"
    },
    "distributor_links": {
      "lcsc": "C2901899"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:04:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "AVDDL",
        "type": "power_in",
        "description": "Analog power supply pin at 1.0V for the PHY analog circuitry."
      },
      {
        "number": "2",
        "name": "RXIP2",
        "type": "bidirectional",
        "description": "Differential receive data input (positive) for Port 2, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "3",
        "name": "RXIN2",
        "type": "bidirectional",
        "description": "Differential receive data input (negative) for Port 2, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "4",
        "name": "TXON2",
        "type": "bidirectional",
        "description": "Differential transmit data output (negative) for Port 2, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "5",
        "name": "TXOP2",
        "type": "bidirectional",
        "description": "Differential transmit data output (positive) for Port 2, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "6",
        "name": "AVDDH",
        "type": "power_in",
        "description": "Analog power supply pin at 3.3V."
      },
      {
        "number": "7",
        "name": "TXOP3",
        "type": "bidirectional",
        "description": "Differential transmit data output (positive) for Port 3, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "8",
        "name": "TXON3",
        "type": "bidirectional",
        "description": "Differential transmit data output (negative) for Port 3, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "9",
        "name": "RXIN3",
        "type": "bidirectional",
        "description": "Differential receive data input (negative) for Port 3, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "10",
        "name": "RXIP3",
        "type": "bidirectional",
        "description": "Differential receive data input (positive) for Port 3, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "11",
        "name": "DVDDL",
        "type": "power_in",
        "description": "Digital core power supply pin at 1.0V."
      },
      {
        "number": "12",
        "name": "AVDDL",
        "type": "power_in",
        "description": "Analog power supply pin at 1.0V for the PHY analog circuitry."
      },
      {
        "number": "13",
        "name": "RXIP4",
        "type": "bidirectional",
        "description": "Differential receive data input (positive) for Port 4, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "14",
        "name": "RXIN4",
        "type": "bidirectional",
        "description": "Differential receive data input (negative) for Port 4, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "15",
        "name": "TXON4",
        "type": "bidirectional",
        "description": "Differential transmit data output (negative) for Port 4, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "16",
        "name": "TXOP4",
        "type": "bidirectional",
        "description": "Differential transmit data output (positive) for Port 4, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "17",
        "name": "AVDDH",
        "type": "power_in",
        "description": "Analog power supply pin at 3.3V."
      },
      {
        "number": "18",
        "name": "MTXD3",
        "type": "bidirectional",
        "description": "(T)MII MAC5 transmit data nibble bit 3 in MAC mode, also P0LED1 and DUP_STA strapping pin; internal pull-down about 75KΩ."
      },
      {
        "number": "19",
        "name": "MTXD2",
        "type": "bidirectional",
        "description": "(T)MII MAC5 transmit data nibble bit 2 in MAC mode, also P1LED1 and SPD_STA strapping pin; internal pull-down about 75KΩ."
      },
      {
        "number": "20",
        "name": "MTXD1",
        "type": "bidirectional",
        "description": "(T)MII MAC5 transmit data nibble bit 1 in MAC mode, also P2LED1 and IF_MODE strapping pin; internal pull-down about 75KΩ."
      },
      {
        "number": "21",
        "name": "MTXD0",
        "type": "bidirectional",
        "description": "(T)MII MAC5 transmit data nibble bit 0 in MAC mode, also P3LED1 and IF_SEL[0] strapping pin; internal pull-down about 75KΩ."
      },
      {
        "number": "22",
        "name": "MTXEN",
        "type": "bidirectional",
        "description": "(T)MII MAC5 transmit enable in MAC mode, also EN_LED1 strapping pin; output with internal pull-down about 75KΩ."
      },
      {
        "number": "23",
        "name": "MTXC/PRXC",
        "type": "bidirectional",
        "description": "(T)MII MAC5 transmit clock in MAC mode, 25MHz for 100Mbps and 2.5MHz for 10Mbps in MII mode; internal pull-down about 75KΩ."
      },
      {
        "number": "24",
        "name": "MTXER",
        "type": "bidirectional",
        "description": "MII MAC5 transmit error output in MII MAC mode, also IF_SEL[1] strapping pin; internal pull-down about 75KΩ."
      },
      {
        "number": "25",
        "name": "MCOL",
        "type": "bidirectional",
        "description": "MII MAC5 collision detect input in MII MAC mode; internal pull-down about 75KΩ."
      },
      {
        "number": "26",
        "name": "DVDDH",
        "type": "power_in",
        "description": "Digital IO power supply pin at 3.3V."
      },
      {
        "number": "27",
        "name": "MRXER",
        "type": "bidirectional",
        "description": "MII MAC5 receive error input in MII MAC mode, or PTXER in PHY mode; not used in TMII and RMII modes."
      },
      {
        "number": "28",
        "name": "MRXC",
        "type": "bidirectional",
        "description": "(T)MII MAC5 receive clock input in MAC mode; internal pull-down about 75KΩ."
      },
      {
        "number": "29",
        "name": "MRXDV",
        "type": "input",
        "description": "(T)MII MAC5 receive data valid input in MAC mode, used as CRS_DV in RMII mode; internal pull-down about 75KΩ."
      },
      {
        "number": "30",
        "name": "MRXD0",
        "type": "bidirectional",
        "description": "(T)MII MAC5 receive data nibble bit 0 in MAC mode, also P4LED1 pin; internal pull-down about 75KΩ."
      },
      {
        "number": "31",
        "name": "MRXD1",
        "type": "bidirectional",
        "description": "(T)MII MAC5 receive data nibble bit 1 in MAC mode; internal pull-down about 75KΩ."
      },
      {
        "number": "32",
        "name": "MRXD2",
        "type": "bidirectional",
        "description": "(T)MII MAC5 receive data nibble bit 2 in MAC mode; not used in RMII mode; internal pull-down about 75KΩ."
      },
      {
        "number": "33",
        "name": "MRXD3",
        "type": "bidirectional",
        "description": "(T)MII MAC5 receive data nibble bit 3 in MAC mode; not used in RMII mode; internal pull-down about 75KΩ."
      },
      {
        "number": "34",
        "name": "DVDDL",
        "type": "power_in",
        "description": "Digital core power supply pin at 1.0V."
      },
      {
        "number": "35",
        "name": "MII_LINK_STA",
        "type": "input",
        "description": "Real-time link status input for the MAC5 (T)MII/RMII port, where 0 means link down and 1 means link up; internal pull-down about 75KΩ."
      },
      {
        "number": "36",
        "name": "INT/FCTRL_STA",
        "type": "bidirectional",
        "description": "Interrupt output that is pulled low when any interrupt event flag is set, also FCTRL_STA strapping pin; internal pull-up about 75KΩ with 4mA drive."
      },
      {
        "number": "37",
        "name": "SCL/MDC",
        "type": "bidirectional",
        "description": "I2C clock for EEPROM auto-load at power-on, then MDC clock for register access; internal pull-up about 75KΩ with 4mA drive."
      },
      {
        "number": "38",
        "name": "SDA/MDIO",
        "type": "bidirectional",
        "description": "I2C data for EEPROM auto-load at power-on, then MDIO data for register access; internal pull-up about 75KΩ with 4mA drive."
      },
      {
        "number": "39",
        "name": "RESETB",
        "type": "input",
        "description": "System pin reset input, active low; internal pull-up about 75KΩ."
      },
      {
        "number": "40",
        "name": "SLP_WKP",
        "type": "output",
        "description": "Output used to power off the CPU for power saving and to power on or wake the CPU on a wakeup event; internal pull-up about 75KΩ with 4mA drive."
      },
      {
        "number": "41",
        "name": "P0LED0",
        "type": "bidirectional",
        "description": "LED0 status output for Port 0, also DIS_EEE strapping input; internal pull-down about 75KΩ with 10mA drive."
      },
      {
        "number": "42",
        "name": "P1LED0",
        "type": "bidirectional",
        "description": "LED0 status output for Port 1, also LED_MODE[1] strapping input; internal pull-down about 75KΩ with 10mA drive."
      },
      {
        "number": "43",
        "name": "P2LED0",
        "type": "bidirectional",
        "description": "LED0 status output for Port 2, also LED_MODE[2] strapping input; internal pull-down about 75KΩ with 10mA drive."
      },
      {
        "number": "44",
        "name": "DVDDH",
        "type": "power_in",
        "description": "Digital IO power supply pin at 3.3V."
      },
      {
        "number": "45",
        "name": "P3LED0",
        "type": "bidirectional",
        "description": "LED0 status output for Port 3, also RMAMODE strapping input; internal pull-down about 75KΩ with 10mA drive."
      },
      {
        "number": "46",
        "name": "P4LED0",
        "type": "bidirectional",
        "description": "LED0 status output for Port 4, also UNKOWN_MULTI strapping input; internal pull-down about 75KΩ with 10mA drive."
      },
      {
        "number": "47",
        "name": "DVDDL",
        "type": "power_in",
        "description": "Digital core power supply pin at 1.0V."
      },
      {
        "number": "48",
        "name": "V10OUT",
        "type": "output",
        "description": "LDO 1.0V output pin generated from the 3.3V input."
      },
      {
        "number": "49",
        "name": "V33IN",
        "type": "power_in",
        "description": "LDO 3.3V input pin supplying the internal 1.0V regulator."
      },
      {
        "number": "50",
        "name": "AVDDHPLL",
        "type": "power_in",
        "description": "Power supply pin at 3.3V for the PLL."
      },
      {
        "number": "51",
        "name": "XO",
        "type": "output",
        "description": "25MHz crystal clock output; must be left floating when XI is driven by an oscillator."
      },
      {
        "number": "52",
        "name": "XI",
        "type": "input",
        "description": "25MHz crystal clock input with a clock tolerance of ±50ppm; an oscillator may be used here."
      },
      {
        "number": "53",
        "name": "AVDDLPLL",
        "type": "power_in",
        "description": "Power supply pin at 1.0V for the PLL."
      },
      {
        "number": "54",
        "name": "IBREF",
        "type": "output",
        "description": "PHY bandgap reference pin; a 2.49KΩ (1%) resistor must be connected between IBREF and GND."
      },
      {
        "number": "55",
        "name": "AVDDL",
        "type": "power_in",
        "description": "Analog power supply pin at 1.0V for the PHY analog circuitry."
      },
      {
        "number": "56",
        "name": "RXIP0",
        "type": "bidirectional",
        "description": "Differential receive data input (positive) for Port 0, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "57",
        "name": "RXIN0",
        "type": "bidirectional",
        "description": "Differential receive data input (negative) for Port 0, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "58",
        "name": "TXON0",
        "type": "bidirectional",
        "description": "Differential transmit data output (negative) for Port 0, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "59",
        "name": "TXOP0",
        "type": "bidirectional",
        "description": "Differential transmit data output (positive) for Port 0, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "60",
        "name": "AVDDH",
        "type": "power_in",
        "description": "Analog power supply pin at 3.3V."
      },
      {
        "number": "61",
        "name": "TXOP1",
        "type": "bidirectional",
        "description": "Differential transmit data output (positive) for Port 1, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "62",
        "name": "TXON1",
        "type": "bidirectional",
        "description": "Differential transmit data output (negative) for Port 1, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "63",
        "name": "RXIN1",
        "type": "bidirectional",
        "description": "Differential receive data input (negative) for Port 1, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "64",
        "name": "RXIP1",
        "type": "bidirectional",
        "description": "Differential receive data input (positive) for Port 1, supporting 10Base-T and 100Base-TX."
      },
      {
        "number": "65",
        "name": "E_PAD",
        "type": "power_in",
        "description": "Exposed pad, the digital ground for the whole chip that must be connected to GND."
      }
    ],
    "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": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "2/65 pins cited to the wrong page (name found elsewhere): ['35:MII_LINK_STA@p15', '65:E_PAD@p18']"
        ],
        "pages_sent": 26,
        "cost_usd": 0.003,
        "at": "2026-10-27T01:03:38"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/006af71e49bacb3dcc415183af1bcbf8.pdf",
        "pages": 63,
        "sha256": "0d3f23c1e9494833",
        "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"
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    "models_3d": [
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dce07a86ec3fe3ca87eebdff13827f55e036ced5518fee01f85cec4a3f56366d",
        "checked": "2026-10-27",
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        "sha256": "f6ff73cdde38d8a1d9d2f982b49748d504fbed7ed08939002d729876491aed97",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}