DP83TC814SRHARQ1

{
  "slug": "dp83tc814srharq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Ethernet ICs, VQFN-36(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "dp83tc814srharq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "dp83tc814srharq1.kicad_sym",
    "dp83tc814srharq1.kicad_mod",
    "dp83tc814srharq1.glb",
    "dp83tc814srharq1.step",
    "dp83tc814srharq1.lbr",
    "docs/hero.png",
    "docs/dp83tc814srharq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "dp83tc814srharq1-hero.glb",
    "dp83tc814srharq1-hero.overlay.json",
    "dp83tc814srharq1-etched.glb"
  ],
  "component": {
    "mpn": "DP83TC814SRHARQ1",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-36(6x6)",
    "pin_count": 37,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "Ethernet ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/dp83tc814s-q1",
    "parts": {
      "symbol": "dp83tc814srharq1.kicad_sym",
      "footprint": "dp83tc814srharq1.kicad_mod",
      "model_3d": "dp83tc814srharq1-hero.glb",
      "model_3d_plain": "dp83tc814srharq1-etched.glb",
      "model_3d_step": "dp83tc814srharq1-etched.step",
      "model_3d_step_plain": "dp83tc814srharq1.step",
      "lbr": "dp83tc814srharq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C3225816",
      "digikey": "296-DP83TC814SRHARQ1TR-ND",
      "mouser": "595-DP83TC814SRHARQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T01:46:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-DP83TC814SRHARQ1TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-DP83TC814SRHARQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "MDC",
        "type": "input",
        "description": "Management data clock for MDIO serial management, asynchronous to the MAC clocks, maximum rate 20MHz with no minimum rate (VDDIO domain)."
      },
      {
        "number": "2",
        "name": "INT_N",
        "type": "bidirectional",
        "description": "Active-low open-drain interrupt output with weak internal pull-up that can also act as a power-down control input, polarity configurable via register 0x0011 (VDDIO domain)."
      },
      {
        "number": "3",
        "name": "RESET_N",
        "type": "input",
        "description": "Active-low reset input with internal pull-up; hold low for at least 1µs to reinitialize the PHY, and strap pins are resampled on deassertion (VDDIO domain)."
      },
      {
        "number": "4",
        "name": "XO",
        "type": "output",
        "description": "Crystal reference clock output used only with a crystal; must be left floating when a CMOS oscillator drives XI."
      },
      {
        "number": "5",
        "name": "XI",
        "type": "input",
        "description": "25MHz crystal or CMOS oscillator reference clock input (50MHz in RMII slave mode); use a 100Ω series resistor with a crystal."
      },
      {
        "number": "6",
        "name": "LED_1/GPIO_1",
        "type": "bidirectional",
        "description": "Link status LED (blinks on TX/RX activity) or GPIO that is also the AUTO strap pin with internal pull-down (VDDIO domain)."
      },
      {
        "number": "7",
        "name": "VDDA",
        "type": "power_in",
        "description": "3.3V VDDA supply; 0.1µF ceramic decoupling capacitor recommended."
      },
      {
        "number": "8",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; leave floating."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect, floats on power-up; for DP83TC815 adaptation connect to pin 21."
      },
      {
        "number": "10",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; leave floating."
      },
      {
        "number": "11",
        "name": "VDDA",
        "type": "power_in",
        "description": "3.3V core supply; 0.47µF and 0.01µF ceramic decoupling capacitors recommended, optional ferrite bead."
      },
      {
        "number": "12",
        "name": "TRD_P",
        "type": "bidirectional",
        "description": "Positive differential transmit/receive pin for IEEE 802.3bw 100BASE-T1 operation (VDDA domain, ±8kV HBM ESD)."
      },
      {
        "number": "13",
        "name": "TRD_M",
        "type": "bidirectional",
        "description": "Negative differential transmit/receive pin for IEEE 802.3bw 100BASE-T1 operation (VDDA domain, ±8kV HBM ESD)."
      },
      {
        "number": "14",
        "name": "RX_ER",
        "type": "bidirectional",
        "description": "Receive error output in MII/RMII modes, unused in RGMII/SGMII; also PHY_AD[1]/PHY_AD[3] 3-level strap with internal pull-down (VDDMAC domain)."
      },
      {
        "number": "15",
        "name": "RX_DV/CRS_DV/RX_CTRL",
        "type": "bidirectional",
        "description": "Receive data valid (MII), carrier sense/data valid (RMII) or RGMII receive control, unused in SGMII; also PHY_AD[0]/PHY_AD[2] 3-level strap with pull-down (VDDMAC domain)."
      },
      {
        "number": "16",
        "name": "CLKOUT/GPIO_2",
        "type": "bidirectional",
        "description": "25MHz reference clock output (50MHz in RMII slave mode), configurable as LED or GPIO, with AUTO strap function (VDDMAC domain)."
      },
      {
        "number": "17",
        "name": "GND_ESC",
        "type": "passive",
        "description": "Optional ground escape pin that may be tied to ground for PCB layout; not a substitute for the DAP ground, and may be left open."
      },
      {
        "number": "18",
        "name": "GND_ESC",
        "type": "passive",
        "description": "Optional ground escape pin that may be tied to ground for PCB layout; not a substitute for the DAP ground, and may be left open."
      },
      {
        "number": "19",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; leave floating."
      },
      {
        "number": "20",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; leave floating."
      },
      {
        "number": "21",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect, floating; for DP83TC815 adaptation connect 2.2µF and 0.1µF ceramic capacitors from this pin to GND and connect pin 9 to it."
      },
      {
        "number": "22",
        "name": "VDDMAC",
        "type": "power_in",
        "description": "Optional separate 1.8V, 2.5V or 3.3V supply for MAC interface pins; connect to VDDIO if no separate supply is needed, with 0.47µF and 0.01µF decoupling."
      },
      {
        "number": "23",
        "name": "RX_D3/RX_M",
        "type": "bidirectional",
        "description": "Receive data bit 3 (MII/RGMII), SGMII differential output RX_M, or 50MHz RMII master clock output; CLKOUT_PIN strap with pull-down (VDDMAC domain)."
      },
      {
        "number": "24",
        "name": "RX_D2/RX_P",
        "type": "bidirectional",
        "description": "Receive data bit 2 (MII/RGMII) or SGMII differential output RX_P; MAC[2] strap with pull-down (VDDMAC domain)."
      },
      {
        "number": "25",
        "name": "RX_D1",
        "type": "bidirectional",
        "description": "Receive data bit 1 synchronous to RX_CLK; MAC[1] interface-select strap with pull-down (VDDMAC domain)."
      },
      {
        "number": "26",
        "name": "RX_D0",
        "type": "bidirectional",
        "description": "Receive data bit 0 synchronous to RX_CLK; MAC[0] interface-select strap with pull-down (VDDMAC domain)."
      },
      {
        "number": "27",
        "name": "RX_CLK",
        "type": "bidirectional",
        "description": "25MHz receive clock in MII and RGMII modes, unused in RMII and SGMII, with internal pull-down (VDDMAC domain)."
      },
      {
        "number": "28",
        "name": "TX_CLK",
        "type": "bidirectional",
        "description": "25MHz transmit clock output in MII mode or 25MHz clock input from the MAC in RGMII mode, unused in RMII and SGMII (VDDMAC domain)."
      },
      {
        "number": "29",
        "name": "TX_EN/TX_CTRL",
        "type": "input",
        "description": "Transmit enable (MII/RMII) or RGMII transmit control, unused in SGMII, with internal pull-down (VDDMAC domain)."
      },
      {
        "number": "30",
        "name": "TX_D3",
        "type": "input",
        "description": "Transmit data bit 3 from the MAC in MII/RGMII modes, unused in RMII (VDDMAC domain)."
      },
      {
        "number": "31",
        "name": "TX_D2",
        "type": "input",
        "description": "Transmit data bit 2 from the MAC in MII/RGMII modes, unused in RMII (VDDMAC domain)."
      },
      {
        "number": "32",
        "name": "TX_D1/TX_P",
        "type": "input",
        "description": "Transmit data bit 1 from the MAC or SGMII differential input TX_P (VDDMAC domain)."
      },
      {
        "number": "33",
        "name": "TX_D0/TX_M",
        "type": "input",
        "description": "Transmit data bit 0 from the MAC or SGMII differential input TX_M (VDDMAC domain)."
      },
      {
        "number": "34",
        "name": "VDDIO",
        "type": "power_in",
        "description": "1.8V, 2.5V or 3.3V IO supply; ferrite bead, 0.47µF and 0.01µF ceramic decoupling recommended."
      },
      {
        "number": "35",
        "name": "LED_0/GPIO_0",
        "type": "bidirectional",
        "description": "Link status LED or GPIO that is also the MS master/slave strap pin with internal pull-down, defaulting to slave (VDDIO domain)."
      },
      {
        "number": "36",
        "name": "MDIO",
        "type": "bidirectional",
        "description": "Open-drain bidirectional management data line requiring a 2.2kΩ to 9kΩ pull-up to VDDIO (VDDIO domain)."
      },
      {
        "number": "37",
        "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: Pin 21 is listed as NC in Tables 5-3 but as DNC in Tables 5-4 to 5-7, and has a special DP83TC815 ad; The exposed pad is labelled DAP with no numeric pin number in the pin table; confirm the number assi; Strap pins are typed bidirectional because they are sampled as inputs at reset and driven as outputs",
          "2/37 pins cited to the wrong page (name found elsewhere): ['4:XO@p7', '5:XI@p7']"
        ],
        "pages_sent": 80,
        "cost_usd": 0.6691,
        "at": "2026-10-31T01:46:29"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/dp83tc814s-q1",
        "pages": 161,
        "sha256": "d1fe2a72e0f7d7e6",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 37,
        "described": 37,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "dp83tc814srharq1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          6.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6212c4fd2463ccb7c6ae2c35f5e24c80884153fcaeaf8e86549c0e49087bc8bb",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "dp83tc814srharq1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          6.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "aac60f0f96f319c91f52db5b8f3fae78cd4c79172e5068b9dab3a328c86f0003",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "RHA0036A",
      "source_page": 158,
      "D": {
        "nom_mm": 6.0,
        "range_mm": [
          5.9,
          6.1
        ]
      },
      "E1": {
        "nom_mm": 6.0,
        "range_mm": [
          5.9,
          6.1
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 0.9,
        "range_mm": [
          0.8,
          1.0
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "dp83tc814srharq1.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}