DP83848MSQ

{
  "slug": "dp83848msq",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Ethernet ICs, WQFN-40-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "dp83848msq",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "README.md",
    "dp83848msq.kicad_sym",
    "dp83848msq.kicad_mod",
    "dp83848msq.glb",
    "dp83848msq.step",
    "dp83848msq.lbr",
    "docs/hero.png",
    "docs/dp83848msq-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "dp83848msq-hero.glb",
    "dp83848msq-hero.overlay.json"
  ],
  "component": {
    "mpn": "DP83848MSQ",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-40-EP(6x6)",
    "pin_count": 41,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "Ethernet ICs",
    "datasheet": "https://www.ti.com/lit/ds/symlink/dp83848msq.pdf",
    "parts": {
      "symbol": "dp83848msq.kicad_sym",
      "footprint": "dp83848msq.kicad_mod",
      "model_3d": "dp83848msq-hero.glb",
      "model_3d_plain": "dp83848msq.glb",
      "model_3d_step": "dp83848msq-etched.step",
      "model_3d_step_plain": "dp83848msq.step",
      "lbr": "dp83848msq.lbr"
    },
    "distributor_links": {
      "lcsc": "C2876354",
      "digikey": "DP83848MSQ/NOPBTR-ND",
      "mouser": "926-DP83848MSQ/NOPB"
    },
    "distributor_check": {
      "checked_at": "2026-11-12T20:09:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "DP83848MSQ/NOPBTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "926-DP83848MSQ/NOPB",
        "status": "found"
      },
      "matched_as": "DP83848MSQ/NOPB"
    },
    "pins": [
      {
        "number": "1",
        "name": "IOVDD33",
        "type": "power_in",
        "description": "I/O 3.3-V supply; the device operates at VCC 3.3 V ±0.3 V."
      },
      {
        "number": "2",
        "name": "TX_CLK",
        "type": "output",
        "description": "MII transmit clock output at 25 MHz in 100 Mb/s mode or 2.5 MHz in 10 Mb/s mode, derived from the 25-MHz reference; unused in RMII mode."
      },
      {
        "number": "3",
        "name": "TX_EN",
        "type": "input",
        "description": "MII transmit enable, active high, indicating valid data on TXD[3:0]; in RMII mode it indicates valid data on TXD[1:0]."
      },
      {
        "number": "4",
        "name": "TXD_0",
        "type": "input",
        "description": "MII transmit data bit 0, synchronous to TX_CLK (2.5 MHz in 10 Mb/s or 25 MHz in 100 Mb/s); in RMII mode it is synchronous to the 50-MHz reference clock."
      },
      {
        "number": "5",
        "name": "TXD_1",
        "type": "input",
        "description": "MII transmit data bit 1, synchronous to TX_CLK (2.5 MHz in 10 Mb/s or 25 MHz in 100 Mb/s); in RMII mode it is synchronous to the 50-MHz reference clock."
      },
      {
        "number": "6",
        "name": "TXD_2",
        "type": "input",
        "description": "MII transmit data bit 2, synchronous to TX_CLK (2.5 MHz in 10 Mb/s or 25 MHz in 100 Mb/s); not used in RMII mode."
      },
      {
        "number": "7",
        "name": "TXD_3",
        "type": "input",
        "description": "MII transmit data bit 3, synchronous to TX_CLK (2.5 MHz in 10 Mb/s or 25 MHz in 100 Mb/s); not used in RMII mode."
      },
      {
        "number": "8",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved pin; must be left unconnected."
      },
      {
        "number": "9",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved pin; must be left unconnected."
      },
      {
        "number": "10",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved pin; must be left unconnected."
      },
      {
        "number": "11",
        "name": "RD-",
        "type": "bidirectional",
        "description": "Differential receive input (PMD input pair) for 10BASE-T or 100BASE-TX; requires 3.3-V bias, and in Auto-MDIX mode this pair can serve as the transmit output."
      },
      {
        "number": "12",
        "name": "RD+",
        "type": "bidirectional",
        "description": "Differential receive input (PMD input pair) for 10BASE-T or 100BASE-TX; requires 3.3-V bias, and in Auto-MDIX mode this pair can serve as the transmit output."
      },
      {
        "number": "13",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "14",
        "name": "TD-",
        "type": "bidirectional",
        "description": "Differential transmit output (PMD output pair) for 10BASE-T or 100BASE-TX; requires 3.3-V bias, and in Auto-MDIX mode this pair can serve as the receive input."
      },
      {
        "number": "15",
        "name": "TD+",
        "type": "bidirectional",
        "description": "Differential transmit output (PMD output pair) for 10BASE-T or 100BASE-TX; requires 3.3-V bias, and in Auto-MDIX mode this pair can serve as the receive input."
      },
      {
        "number": "16",
        "name": "PFBIN1",
        "type": "input",
        "description": "Power feedback input fed only from PFBOUT (pin 19), with a 0.1-µF capacitor close to the pin; do not supply power to this pin from any other source."
      },
      {
        "number": "17",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "18",
        "name": "AVDD33",
        "type": "power_in",
        "description": "Analog 3.3-V supply."
      },
      {
        "number": "19",
        "name": "PFBOUT",
        "type": "output",
        "description": "Power feedback output; place parallel 10-µF (tantalum preferred) and 0.1-µF capacitors close to this pin and connect it to PFBIN1 (pin 16) and PFBIN2 (pin 30)."
      },
      {
        "number": "20",
        "name": "RBIAS",
        "type": "input",
        "description": "Bias resistor connection; a 4.87-kΩ 1% resistor must be connected from RBIAS to GND."
      },
      {
        "number": "21",
        "name": "CLK_OUT",
        "type": "output",
        "description": "25-MHz clock output on the DP83848H/M/T (pin 21 is CLK_OUT on this variant, not LED_SPEED); the datasheet gives no further electrical limits for this pin."
      },
      {
        "number": "22",
        "name": "LED_LINK/AN0",
        "type": "bidirectional",
        "description": "Link LED output (ON when link is good; in Mode 2 also blinks for transmit/receive activity); AN0 is a strap sampled at hardware reset, set with 2.2-kΩ resistors to GND or VCC and not to be tied directly."
      },
      {
        "number": "23",
        "name": "RESET_N",
        "type": "input",
        "description": "Active-low reset with internal pullup; asserting it low for at least 1 µs forces a reset and re-latches all strap options."
      },
      {
        "number": "24",
        "name": "MDIO",
        "type": "bidirectional",
        "description": "Management data I/O, bidirectional serial management data; requires a 1.5-kΩ pullup resistor."
      },
      {
        "number": "25",
        "name": "MDC",
        "type": "input",
        "description": "Management data clock for the MDIO interface, maximum 25 MHz with no minimum clock rate."
      },
      {
        "number": "26",
        "name": "IOVDD33",
        "type": "power_in",
        "description": "I/O 3.3-V supply; the device operates at VCC 3.3 V ±0.3 V."
      },
      {
        "number": "27",
        "name": "X2",
        "type": "output",
        "description": "Crystal output for an external 25-MHz crystal resonator; must be left unconnected when an external CMOS oscillator drives X1."
      },
      {
        "number": "28",
        "name": "X1",
        "type": "input",
        "description": "Primary clock input that must be a 25-MHz ±50 ppm source (crystal across X1/X2 or CMOS oscillator on X1); in RMII mode it is the 50-MHz ±50 ppm reference."
      },
      {
        "number": "29",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "30",
        "name": "PFBIN2",
        "type": "input",
        "description": "Power feedback input fed only from PFBOUT, with a 0.1-µF capacitor close to the pin; do not supply power to this pin from any other source."
      },
      {
        "number": "31",
        "name": "RX_CLK",
        "type": "output",
        "description": "MII receive clock output at 25 MHz for 100 Mb/s or 2.5 MHz for 10 Mb/s; unused in RMII mode."
      },
      {
        "number": "32",
        "name": "RX_DV/MII_MODE",
        "type": "bidirectional",
        "description": "MII receive data valid output (asserted when valid data is on RXD[3:0]); as a strap, high selects RMII mode and the internal pulldown defaults it to MII (0)."
      },
      {
        "number": "33",
        "name": "CRS/CRS_DV/LED_CFG",
        "type": "bidirectional",
        "description": "MII carrier sense output (or combined RMII carrier sense/receive data valid); as a strap it selects LED configuration mode, with default Mode 1 and a pullup."
      },
      {
        "number": "34",
        "name": "RX_ER/MDIX_EN",
        "type": "bidirectional",
        "description": "MII receive error output (asserted synchronously to RX_CLK on invalid symbols in 100 Mb/s); as a strap, an external pulldown disables Auto-MDIX, which is enabled by default."
      },
      {
        "number": "35",
        "name": "COL/PHYAD0",
        "type": "bidirectional",
        "description": "MII collision detect output (always 0 in full duplex); as a strap it is PHY address bit 0, latched at hardware reset, with weak internal pullup."
      },
      {
        "number": "36",
        "name": "RXD_0/PHYAD1",
        "type": "bidirectional",
        "description": "MII receive data bit 0 (RMII RXD[0]), driven synchronously to RX_CLK (or X1 in RMII); as a strap it is PHY address bit 1 with weak internal pulldown."
      },
      {
        "number": "37",
        "name": "RXD_1/PHYAD2",
        "type": "bidirectional",
        "description": "MII receive data bit 1 (RMII RXD[1]), driven synchronously to RX_CLK (or X1 in RMII); as a strap it is PHY address bit 2 with weak internal pulldown."
      },
      {
        "number": "38",
        "name": "RXD_2/PHYAD3",
        "type": "bidirectional",
        "description": "MII receive data bit 2, valid when RX_DV is asserted; as a strap it is PHY address bit 3 with weak internal pulldown."
      },
      {
        "number": "39",
        "name": "RXD_3/PHYAD4",
        "type": "bidirectional",
        "description": "MII receive data bit 3, valid when RX_DV is asserted; as a strap it is PHY address bit 4 with weak internal pulldown."
      },
      {
        "number": "40",
        "name": "IOGND",
        "type": "power_in",
        "description": "I/O ground."
      },
      {
        "number": "41",
        "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-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Exposed die pad (DAP) is shown in the top-view diagram but the text gives no pin number for it, so i; Pin 21 function depends on variant: the datasheet states pin 21 is CLK_OUT for DP83848H/M/T and LED_; Pins 8, 9 and 10 are typed I/O in section 4.9/4.10 but the datasheet states they must be left unconn"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0072,
        "at": "2026-11-12T20:09:21"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/dp83848msq.pdf",
        "pages": 87,
        "sha256": "14b0911cb23ad857",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "model_3d_generated": {
        "generator": "factory/gen_pkg3d.py",
        "family": "QFN",
        "height_mm": 0.8,
        "height_basis": "datasheet A, max",
        "standoff_mm": 0.0
      },
      "pins": {
        "total": 41,
        "described": 41,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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    "models_3d": [
      {
        "file": "dp83848msq.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.02,
          6.02,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "47c69cbbc6dc74a567d6daee944d1df20258d7131d3caf8b5fe47d3687262806",
        "checked": "2026-11-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "dp83848msq-etched.step",
        "role": "eda",
        "up": "Z",
        "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": "ecaf81f05fd205dc6c983bf75d0e8401a0c5ec4a351a1c95ecac668df0702d02",
        "checked": "2026-11-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "RTA0040A",
      "source_page": 77,
      "D": {
        "nom_mm": 6.0,
        "range_mm": [
          5.9,
          6.1
        ]
      },
      "E1": {
        "nom_mm": 6.0,
        "range_mm": [
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        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 0.8,
        "range_mm": [
          null,
          0.8
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "dp83848msq.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}