TLK110PT

{
  "schema_version": 1,
  "type": "component",
  "slug": "tlk110pt",
  "title": "TLK110PT",
  "brief": "Texas Instruments Ethernet Transceivers, LQFP-48(7x7). 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",
    "tlk110pt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TLK110PT",
    "manufacturer": "Texas Instruments",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "Interface",
    "subcategory": "Ethernet Transceivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tlk110",
    "parts": {
      "symbol": "tlk110pt.kicad_sym",
      "footprint": "tlk110pt.kicad_mod",
      "model_3d": "tlk110pt-hero.glb",
      "model_3d_plain": "tlk110pt.glb",
      "model_3d_step": "tlk110pt-etched.step",
      "model_3d_step_plain": "tlk110pt.step",
      "lbr": "tlk110pt.lbr"
    },
    "distributor_links": {
      "lcsc": "C181659",
      "digikey": "296-30163-ND",
      "mouser": "595-TLK110PT"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T06:34:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-30163-ND",
        "status": "found",
        "lifecycle": "Not For New Designs"
      },
      "mouser": {
        "pn": "595-TLK110PT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "TX_CLK",
        "type": "output",
        "description": "MII transmit clock providing a 25MHz or 2.5MHz reference depending on speed; unused in RMII mode."
      },
      {
        "number": "2",
        "name": "TX_EN",
        "type": "input",
        "description": "Transmit enable, presented on the rising edge of TX_CLK and active high, indicating valid data on TXD[3:0] in MII mode or TXD[1:0] in RMII mode."
      },
      {
        "number": "3",
        "name": "TXD_0",
        "type": "input",
        "description": "Transmit data bit 0 from the MAC, synchronous to TX_CLK in MII mode or to the 50MHz reference on XI in RMII mode."
      },
      {
        "number": "4",
        "name": "TXD_1",
        "type": "input",
        "description": "Transmit data bit 1 from the MAC, synchronous to TX_CLK in MII mode or to the 50MHz reference on XI in RMII mode."
      },
      {
        "number": "5",
        "name": "TXD_2",
        "type": "input",
        "description": "Transmit data bit 2 from the MAC, synchronous to TX_CLK in MII mode (not used in RMII mode, which uses TXD[1:0])."
      },
      {
        "number": "6",
        "name": "TXD_3",
        "type": "input",
        "description": "Transmit data bit 3 from the MAC, synchronous to the rising edge of TX_CLK in MII mode (not used in RMII mode)."
      },
      {
        "number": "7",
        "name": "INT/PWDN",
        "type": "bidirectional",
        "description": "Active-low power-down input by default, or open-drain interrupt output when enabled through register access, with a weak internal pull-up that may need an external pull-up."
      },
      {
        "number": "8",
        "name": "JTAG_TCK",
        "type": "input",
        "description": "JTAG test clock input with a weak internal pullup."
      },
      {
        "number": "9",
        "name": "JTAG_TDO",
        "type": "output",
        "description": "JTAG test data output."
      },
      {
        "number": "10",
        "name": "JTAG_TMS",
        "type": "input",
        "description": "JTAG test mode select input with a weak internal pullup."
      },
      {
        "number": "11",
        "name": "JTAG_TRST",
        "type": "input",
        "description": "Active-low asynchronous JTAG test reset input with a weak internal pullup."
      },
      {
        "number": "12",
        "name": "JTAG_TDI",
        "type": "input",
        "description": "JTAG test data input with a weak internal pullup."
      },
      {
        "number": "13",
        "name": "RD-",
        "type": "bidirectional",
        "description": "Differential receive input pair auto-configured for 100Base-TX or 10Base-T; requires 3.3V bias and serves as the transmit output pair in Auto-MDIX crossover."
      },
      {
        "number": "14",
        "name": "RD+",
        "type": "bidirectional",
        "description": "Differential receive input pair auto-configured for 100Base-TX or 10Base-T; requires 3.3V bias and serves as the transmit output pair in Auto-MDIX crossover."
      },
      {
        "number": "15",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "16",
        "name": "TD-",
        "type": "bidirectional",
        "description": "Differential transmit output pair automatically configured for 10Base-T or 100Base-TX; requires 3.3V bias and serves as the receive input pair in Auto-MDIX mode."
      },
      {
        "number": "17",
        "name": "TD+",
        "type": "bidirectional",
        "description": "Differential transmit output pair automatically configured for 10Base-T or 100Base-TX; requires 3.3V bias and serves as the receive input pair in Auto-MDIX mode."
      },
      {
        "number": "18",
        "name": "PFBIN1",
        "type": "input",
        "description": "Power feedback input fed from PFBOUT in single-supply operation, or connected to a 1.55V external supply in multiple-supply operation, with a 0.1µF capacitor close to the pin."
      },
      {
        "number": "19",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "20",
        "name": "RESERVED",
        "type": "bidirectional",
        "description": "Reserved pin that must be pulled up to AVDD33 through a 2.2kΩ resistor."
      },
      {
        "number": "21",
        "name": "SW_STRAP",
        "type": "input",
        "description": "Connecting an external pull-up resistor to this pin disables software strapping mode during power-up or hardware reset."
      },
      {
        "number": "22",
        "name": "AVDD33",
        "type": "power_in",
        "description": "Analog 3.3V power supply."
      },
      {
        "number": "23",
        "name": "PFBOUT",
        "type": "power_out",
        "description": "Power feedback output for the internal regulator; place 10µF and 0.1µF ceramic capacitors close to the pin and connect to PFBIN1 and PFBIN2 in single-supply operation, otherwise not used."
      },
      {
        "number": "24",
        "name": "RBIAS",
        "type": "input",
        "description": "Bias resistor connection; use a 4.87kΩ 1% resistor from RBIAS to GND."
      },
      {
        "number": "25",
        "name": "CLKOUT",
        "type": "output",
        "description": "Clock output providing 25MHz in MII mode or 50MHz in RMII mode for use by other devices."
      },
      {
        "number": "26",
        "name": "LED_ACT/COL/AN_EN",
        "type": "bidirectional",
        "description": "Configurable LED pin indicating activity (mode 1), collision (mode 2) or duplex (mode 3), which also serves as the AN_EN configuration strap."
      },
      {
        "number": "27",
        "name": "LED_SPEED/AN_1",
        "type": "bidirectional",
        "description": "Speed LED that is ON at 100Mb/s and OFF at 10Mb/s, which also serves as the AN_1 configuration strap."
      },
      {
        "number": "28",
        "name": "LED_LINK/AN_0",
        "type": "bidirectional",
        "description": "Link status LED that is ON for a good link, which also serves as the AN_0 configuration strap."
      },
      {
        "number": "29",
        "name": "RESET",
        "type": "input",
        "description": "Active-low reset input that reinitializes all internal registers when asserted low for at least 1µs."
      },
      {
        "number": "30",
        "name": "MDIO",
        "type": "bidirectional",
        "description": "Bidirectional management data signal synchronized to MDC that requires a 2.2kΩ pull-up resistor."
      },
      {
        "number": "31",
        "name": "MDC",
        "type": "input",
        "description": "Management data clock with a maximum rate of 25MHz and no minimum rate, not required to be synchronous to TX_CLK or RX_CLK."
      },
      {
        "number": "32",
        "name": "VDD_IO",
        "type": "power_in",
        "description": "I/O supply of 3.3V, 2.5V, or 1.8V (1.8V for MII mode only)."
      },
      {
        "number": "33",
        "name": "XO",
        "type": "output",
        "description": "Crystal output used only with a crystal; left floating when an oscillator drives XI."
      },
      {
        "number": "34",
        "name": "XI",
        "type": "input",
        "description": "Reference clock input: 25MHz ±50ppm crystal or CMOS oscillator in MII mode, or 50MHz ±50ppm CMOS oscillator in RMII mode."
      },
      {
        "number": "35",
        "name": "IOGND",
        "type": "power_in",
        "description": "I/O ground."
      },
      {
        "number": "36",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "37",
        "name": "PFBIN2",
        "type": "input",
        "description": "Power feedback input fed from PFBOUT in single-supply operation, or connected to a 1.55V external supply in multiple-supply operation, with a 0.1µF capacitor close to the pin."
      },
      {
        "number": "38",
        "name": "RX_CLK",
        "type": "output",
        "description": "MII receive clock providing a 25MHz or 2.5MHz reference derived from the received data stream, depending on speed."
      },
      {
        "number": "39",
        "name": "RX_DV/MII_MODE",
        "type": "bidirectional",
        "description": "Receive data valid indicating valid data on RXD[3:0] (MII) or RXD[1:0] (RMII) independent of carrier sense, with this pin also sampled as the MII_MODE configuration strap."
      },
      {
        "number": "40",
        "name": "CRS/CRS_DV/LED_CFG",
        "type": "bidirectional",
        "description": "Carrier sense asserted high when the receive medium is non-idle in MII mode, or the combined CRS_DV indication in RMII mode, with this pin also serving as the LED_CFG strap."
      },
      {
        "number": "41",
        "name": "RX_ER/AMDIX_EN",
        "type": "bidirectional",
        "description": "Receive error indication asserted on an error symbol in MII or RMII mode, with this pin also serving as the AMDIX_EN configuration strap."
      },
      {
        "number": "42",
        "name": "COL/PHYAD0",
        "type": "bidirectional",
        "description": "Collision detect that is always low in MII full-duplex mode and unused in RMII mode, with this pin also serving as the PHYAD0 address bit (LSB, pulled up)."
      },
      {
        "number": "43",
        "name": "RXD_0/PHYAD1",
        "type": "bidirectional",
        "description": "Receive data bit 0 synchronous to RX_CLK in MII mode or two-bit RXD[1:0] in RMII mode, also serving as PHY address bit PHYAD1 (pulled down)."
      },
      {
        "number": "44",
        "name": "RXD_1/PHYAD2",
        "type": "bidirectional",
        "description": "Receive data bit 1 synchronous to RX_CLK, also serving as PHY address bit PHYAD2 (pulled down)."
      },
      {
        "number": "45",
        "name": "RXD_2/PHYAD3",
        "type": "bidirectional",
        "description": "Receive data bit 2 synchronous to RX_CLK, also serving as PHY address bit PHYAD3 (pulled down)."
      },
      {
        "number": "46",
        "name": "RXD_3/PHYAD4",
        "type": "bidirectional",
        "description": "Receive data bit 3 synchronous to RX_CLK, also serving as PHY address bit PHYAD4 (pulled down)."
      },
      {
        "number": "47",
        "name": "IOGND",
        "type": "power_in",
        "description": "I/O ground."
      },
      {
        "number": "48",
        "name": "VDD_IO",
        "type": "power_in",
        "description": "I/O supply of 3.3V, 2.5V, or 1.8V (1.8V for MII mode only)."
      }
    ],
    "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: Pin 21 is named SW_STRAP only in the pin diagram (page 4) and its function is described on page 15; ; Pin 25 is named CLKOUT in the pin description table but CLK_OUT in the pin diagram; the table name w; Pins 26-28 and 39-42 are configuration/strap pins with output function (type S,O). They are typed bi"
        ],
        "pages_sent": 32,
        "cost_usd": 0.1918,
        "at": "2026-10-08T06:34:29"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tlk110",
        "pages": 104,
        "sha256": "deab430dfd9c08b2",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 48,
        "described": 48,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tlk110pt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tlk110pt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "8f4098a73796a02c9e8ee4f642205c06af31cb35058aeb7e813a0618f211620f",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "LQFP-48(7x7)",
      "Category": "Interface",
      "Pins": "48"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tlk110pt"
  ],
  "discovery_pitch": "TLK110PT (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "tlk110pt.kicad_sym",
    "tlk110pt.kicad_mod",
    "tlk110pt.glb",
    "tlk110pt.step",
    "tlk110pt.lbr",
    "docs/hero.png",
    "docs/tlk110pt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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    "tlk110pt-hero.overlay.json"
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  "visibility": {
    "public": true
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}