DP83849IVSX

{
  "slug": "dp83849ivsx",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Ethernet Transceivers, TQFP-80(12x12). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "dp83849ivsx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "dp83849ivsx.kicad_sym",
    "dp83849ivsx.kicad_mod",
    "dp83849ivsx.glb",
    "dp83849ivsx.step",
    "dp83849ivsx.lbr",
    "docs/hero.png",
    "docs/dp83849ivsx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "DP83849IVSX",
    "manufacturer": "Texas Instruments",
    "package": "TQFP-80(12x12)",
    "pin_count": 80,
    "category": "Interface",
    "subcategory": "Ethernet Transceivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/dp83849i",
    "parts": {
      "symbol": "dp83849ivsx.kicad_sym",
      "footprint": "dp83849ivsx.kicad_mod",
      "model_3d": "dp83849ivsx-etched.glb",
      "model_3d_plain": "dp83849ivsx.glb",
      "model_3d_step": "dp83849ivsx-etched.step",
      "model_3d_step_plain": "dp83849ivsx.step",
      "lbr": "dp83849ivsx.lbr"
    },
    "distributor_links": {
      "lcsc": "C2671040"
    },
    "pins": [
      {
        "number": "1",
        "name": "CRS_A/CRS_DV_A",
        "type": "output",
        "description": "Asserted high in MII mode to indicate the receive medium is non-idle, or in RMII mode combines Carrier Sense and Receive Data Valid."
      },
      {
        "number": "2",
        "name": "RX_ER_A/MDIX_EN_A",
        "type": "output",
        "description": "Asserted high synchronously to RX_CLK to indicate invalid symbol detection in 100Mb mode, or enables Auto-MDIX when strap pulled down."
      },
      {
        "number": "3",
        "name": "COL_A",
        "type": "output",
        "description": "Asserted high to indicate detection of collision condition during simultaneous transmit and receive activity in half-duplex modes."
      },
      {
        "number": "4",
        "name": "RXD0_A/PHYAD1",
        "type": "output",
        "description": "Nibble-wide receive data signal driven synchronously to RX_CLK in MII mode, or carries PHY address bit 1 when sampled as strap during reset."
      },
      {
        "number": "5",
        "name": "RXD1_A/PHYAD2",
        "type": "output",
        "description": "Nibble-wide receive data signal driven synchronously to RX_CLK in MII mode, or carries PHY address bit 2 when sampled as strap during reset."
      },
      {
        "number": "6",
        "name": "COREGND1",
        "type": "power_in",
        "description": "Core ground connection requiring connection to system ground plane."
      },
      {
        "number": "7",
        "name": "PFBIN1",
        "type": "input",
        "description": "Power feedback input pin requiring 0.1µF capacitor connection to PFBOUT."
      },
      {
        "number": "8",
        "name": "RXD2_A/CLK2MAC_DIS",
        "type": "output",
        "description": "Receive data signal in MII mode, or when strap pulled high disables CLK2MAC output."
      },
      {
        "number": "9",
        "name": "RXD3_A/ED_EN_A",
        "type": "output",
        "description": "Receive data signal in MII mode, or when strap pulled high enables Energy Detect mode."
      },
      {
        "number": "10",
        "name": "IOGND1",
        "type": "power_in",
        "description": "I/O ground connection for I/O signal return path."
      },
      {
        "number": "11",
        "name": "IOVDD1",
        "type": "power_in",
        "description": "I/O 3.3V supply requiring 0.1µF bypass capacitor placed close to pin."
      },
      {
        "number": "12",
        "name": "TX_CLK_A",
        "type": "output",
        "description": "25MHz transmit clock output in 100Mb/s mode or 2.5MHz in 10Mb/s mode derived from 25MHz reference clock."
      },
      {
        "number": "13",
        "name": "TX_EN_A",
        "type": "input",
        "description": "Active high input indicating presence of valid data on TXD[3:0] transmit data bus."
      },
      {
        "number": "14",
        "name": "TXD0_A",
        "type": "input",
        "description": "Transmit data input sampled synchronously to TX_CLK in MII mode accepting 2.5-25MHz data."
      },
      {
        "number": "15",
        "name": "TXD1_A",
        "type": "input",
        "description": "Transmit data input sampled synchronously to TX_CLK in MII mode accepting 2.5-25MHz data."
      },
      {
        "number": "16",
        "name": "TXD2_A",
        "type": "input",
        "description": "Transmit data input sampled synchronously to TX_CLK in MII mode accepting 2.5-25MHz data."
      },
      {
        "number": "17",
        "name": "TXD3_A/SNI_MODE_A",
        "type": "input",
        "description": "Transmit data input in MII mode, or when strap pulled high enables 10Mb/s SNI serial mode."
      },
      {
        "number": "18",
        "name": "PWRDOWN_INT_A",
        "type": "input",
        "description": "Active low input for power down control, or when INT_OE bit set becomes open-drain interrupt output."
      },
      {
        "number": "19",
        "name": "LED_LINK_A/AN0_A",
        "type": "output",
        "description": "LED output indicating link status in mode 1 or link with activity in modes 2-3, or carries auto-negotiation strap bit 0."
      },
      {
        "number": "20",
        "name": "LED_SPEED_A/AN1_A",
        "type": "output",
        "description": "LED output on for 100Mb/s operation, off for 10Mb/s operation, or carries auto-negotiation strap bit 1."
      },
      {
        "number": "21",
        "name": "LED_ACT/LED_COL/AN_EN_A",
        "type": "output",
        "description": "LED output for activity/collision/duplex indication depending on mode, or carries auto-negotiation enable strap."
      },
      {
        "number": "22",
        "name": "ANAGND1",
        "type": "power_in",
        "description": "Analog ground connection for analog signal return path."
      },
      {
        "number": "23",
        "name": "TPRDM_A",
        "type": "bidirectional",
        "description": "10BASE-T/100BASE-TX differential receive data pair negative; in Auto-MDIX mode can serve as transmit output pair."
      },
      {
        "number": "24",
        "name": "TPRDP_A",
        "type": "bidirectional",
        "description": "10BASE-T/100BASE-TX differential receive data pair positive; in Auto-MDIX mode can serve as transmit output pair."
      },
      {
        "number": "25",
        "name": "CDGND1",
        "type": "power_in",
        "description": "Common driver ground connection for differential pair biasing."
      },
      {
        "number": "26",
        "name": "TPTDM_A",
        "type": "bidirectional",
        "description": "10BASE-T/100BASE-TX differential transmit data pair negative; in Auto-MDIX mode can serve as receive input pair."
      },
      {
        "number": "27",
        "name": "TPTDP_A",
        "type": "bidirectional",
        "description": "10BASE-T/100BASE-TX differential transmit data pair positive; in Auto-MDIX mode can serve as receive input pair."
      },
      {
        "number": "28",
        "name": "PFBIN2",
        "type": "input",
        "description": "Power feedback input pin requiring 0.1µF capacitor connection to PFBOUT."
      },
      {
        "number": "29",
        "name": "ANAGND2",
        "type": "power_in",
        "description": "Analog ground connection for analog signal return path."
      },
      {
        "number": "30",
        "name": "ANA33VDD",
        "type": "power_in",
        "description": "Analog 3.3V supply requiring connection to analog power rail."
      },
      {
        "number": "31",
        "name": "PFBOUT",
        "type": "output",
        "description": "Power feedback output requiring 10µF and 0.1µF capacitors for connection to PFBIN pins."
      },
      {
        "number": "32",
        "name": "RBIAS",
        "type": "input",
        "description": "Bias resistor connection requiring 4-87kΩ 1% resistor to ground for receiver biasing."
      },
      {
        "number": "33",
        "name": "ANAGND3",
        "type": "power_in",
        "description": "Analog ground connection for analog signal return path."
      },
      {
        "number": "34",
        "name": "PFBIN3",
        "type": "input",
        "description": "Power feedback input pin requiring 0.1µF capacitor connection to PFBOUT."
      },
      {
        "number": "35",
        "name": "TPTDP_B",
        "type": "bidirectional",
        "description": "10BASE-T/100BASE-TX differential transmit data pair positive for Port B; in Auto-MDIX mode can serve as receive input."
      },
      {
        "number": "36",
        "name": "TPTDM_B",
        "type": "bidirectional",
        "description": "10BASE-T/100BASE-TX differential transmit data pair negative for Port B; in Auto-MDIX mode can serve as receive input."
      },
      {
        "number": "37",
        "name": "CDGND2",
        "type": "power_in",
        "description": "Common driver ground connection for differential pair biasing."
      },
      {
        "number": "38",
        "name": "TPRDP_B",
        "type": "bidirectional",
        "description": "10BASE-T/100BASE-TX differential receive data pair positive for Port B; in Auto-MDIX mode can serve as transmit output."
      },
      {
        "number": "39",
        "name": "TPRDM_B",
        "type": "bidirectional",
        "description": "10BASE-T/100BASE-TX differential receive data pair negative for Port B; in Auto-MDIX mode can serve as transmit output."
      },
      {
        "number": "40",
        "name": "ANAGND4",
        "type": "power_in",
        "description": "Analog ground connection for analog signal return path."
      },
      {
        "number": "41",
        "name": "LED_ACT/LED_COL/AN_EN_B",
        "type": "output",
        "description": "LED output for Port B activity/collision/duplex indication, or carries auto-negotiation enable strap for Port B."
      },
      {
        "number": "42",
        "name": "LED_SPEED_B/AN1_B",
        "type": "output",
        "description": "LED output on for 100Mb/s operation, off for 10Mb/s for Port B, or carries auto-negotiation strap bit 1."
      },
      {
        "number": "43",
        "name": "LED_LINK_B/AN0_B",
        "type": "output",
        "description": "LED output indicating link status for Port B, or carries auto-negotiation strap bit 0."
      },
      {
        "number": "44",
        "name": "PWRDOWN_INT_B",
        "type": "input",
        "description": "Active low input for Port B power down control, or when INT_OE bit set becomes open-drain interrupt output."
      },
      {
        "number": "45",
        "name": "TXD3_B/SNI_MODE_B",
        "type": "input",
        "description": "Transmit data input for Port B, or when strap pulled high enables 10Mb/s SNI serial mode."
      },
      {
        "number": "46",
        "name": "TXD2_B",
        "type": "input",
        "description": "Transmit data input sampled synchronously to TX_CLK in MII mode for Port B."
      },
      {
        "number": "47",
        "name": "TXD1_B",
        "type": "input",
        "description": "Transmit data input sampled synchronously to TX_CLK in MII mode for Port B."
      },
      {
        "number": "48",
        "name": "TXD0_B",
        "type": "input",
        "description": "Transmit data input sampled synchronously to TX_CLK in MII mode for Port B."
      },
      {
        "number": "49",
        "name": "TX_EN_B",
        "type": "input",
        "description": "Active high input indicating presence of valid data on TXD[3:0] transmit bus for Port B."
      },
      {
        "number": "50",
        "name": "TX_CLK_B",
        "type": "output",
        "description": "25MHz transmit clock output in 100Mb/s mode or 2.5MHz in 10Mb/s mode for Port B."
      },
      {
        "number": "51",
        "name": "IOVDD2",
        "type": "power_in",
        "description": "I/O 3.3V supply requiring 0.1µF bypass capacitor placed close to pin."
      },
      {
        "number": "52",
        "name": "IOGND2",
        "type": "power_in",
        "description": "I/O ground connection for I/O signal return path."
      },
      {
        "number": "53",
        "name": "RXD3_B/ED_EN_B",
        "type": "output",
        "description": "Receive data signal in MII mode for Port B, or when strap pulled high enables Energy Detect mode."
      },
      {
        "number": "54",
        "name": "PFBIN4",
        "type": "input",
        "description": "Power feedback input pin requiring 0.1µF capacitor connection to PFBOUT."
      },
      {
        "number": "55",
        "name": "COREGND2",
        "type": "power_in",
        "description": "Core ground connection requiring connection to system ground plane."
      },
      {
        "number": "56",
        "name": "RXD2_B/EXTENDER_EN",
        "type": "output",
        "description": "Receive data signal in MII mode for Port B, or when strap pulled high enables extender mode for range extension."
      },
      {
        "number": "57",
        "name": "RXD1_B/PHYAD4",
        "type": "output",
        "description": "Receive data signal for Port B in MII mode, or carries PHY address bit 4 when sampled as strap during reset."
      },
      {
        "number": "58",
        "name": "RXD0_B/PHYAD3",
        "type": "output",
        "description": "Receive data signal for Port B in MII mode, or carries PHY address bit 3 when sampled as strap during reset."
      },
      {
        "number": "59",
        "name": "COL_B",
        "type": "output",
        "description": "Asserted high to indicate collision detection during simultaneous transmit and receive for Port B half-duplex."
      },
      {
        "number": "60",
        "name": "RX_ER_B/MDIX_EN_B",
        "type": "output",
        "description": "Invalid symbol detection output for Port B, or when strap pulled down disables Auto-MDIX for Port B."
      },
      {
        "number": "61",
        "name": "CRS_B/CRS_DV_B/LED_CFG_B",
        "type": "output",
        "description": "Carrier Sense output for Port B indicating receive medium activity, or carries LED configuration strap."
      },
      {
        "number": "62",
        "name": "RX_DV_B/MII_MODE_B",
        "type": "output",
        "description": "Receive data valid indicator for Port B, or when strap pulled high enables RMII or SNI mode."
      },
      {
        "number": "63",
        "name": "RX_CLK_B",
        "type": "output",
        "description": "Recovered receive clock for Port B at 25MHz in 100Mb/s mode or 2.5MHz in 10Mb/s mode."
      },
      {
        "number": "64",
        "name": "IOGND3",
        "type": "power_in",
        "description": "I/O ground connection for I/O signal return path."
      },
      {
        "number": "65",
        "name": "IOVDD3",
        "type": "power_in",
        "description": "I/O 3.3V supply requiring 0.1µF bypass capacitor placed close to pin."
      },
      {
        "number": "66",
        "name": "MDIO",
        "type": "bidirectional",
        "description": "Bi-directional management data I/O for serial management interface requiring 1.5kΩ pullup resistor."
      },
      {
        "number": "67",
        "name": "MDC",
        "type": "input",
        "description": "Management data clock input for serial management interface with maximum 25MHz clock rate."
      },
      {
        "number": "68",
        "name": "CLK2MAC",
        "type": "output",
        "description": "Clock output at 25MHz in MII mode or 50MHz in RMII mode that can be disabled via CLK2MAC_DIS strap."
      },
      {
        "number": "69",
        "name": "X2",
        "type": "output",
        "description": "Crystal oscillator output for connection to external 25MHz crystal resonator, leave unconnected if using external CMOS oscillator."
      },
      {
        "number": "70",
        "name": "X1",
        "type": "input",
        "description": "Primary clock reference input requiring 25MHz ±50ppm clock source for MII mode or 50MHz for RMII mode."
      },
      {
        "number": "71",
        "name": "RESET_N",
        "type": "input",
        "description": "Active low hardware reset input requiring minimum 1µs pulse to reinitialize device and re-latch hardware configuration pins."
      },
      {
        "number": "72",
        "name": "TCK",
        "type": "input",
        "description": "JTAG test clock input with weak internal pullup for boundary scan testing."
      },
      {
        "number": "73",
        "name": "TDO",
        "type": "output",
        "description": "JTAG test data output for boundary scan chain communication."
      },
      {
        "number": "74",
        "name": "TMS",
        "type": "input",
        "description": "JTAG test mode select input with weak internal pullup for test state machine control."
      },
      {
        "number": "75",
        "name": "TRSTN",
        "type": "input",
        "description": "JTAG test reset active low input with weak internal pullup to reset test scan chain."
      },
      {
        "number": "76",
        "name": "TDI",
        "type": "input",
        "description": "JTAG test data input with weak internal pullup for boundary scan data injection."
      },
      {
        "number": "77",
        "name": "IOGND4",
        "type": "power_in",
        "description": "I/O ground connection for I/O signal return path."
      },
      {
        "number": "78",
        "name": "IOVDD4",
        "type": "power_in",
        "description": "I/O 3.3V supply requiring 0.1µF bypass capacitor placed close to pin."
      },
      {
        "number": "79",
        "name": "RX_CLK_A",
        "type": "output",
        "description": "Recovered receive clock for Port A at 25MHz in 100Mb/s mode or 2.5MHz in 10Mb/s mode."
      },
      {
        "number": "80",
        "name": "RX_DV_A/MII_MODE_A",
        "type": "output",
        "description": "Receive data valid indicator for Port A, or when strap pulled high enables RMII or SNI mode."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Dual-purpose pins with strap functions classified by primary functional mode after reset latch-in; c"
        ],
        "pages_sent": 106,
        "cost_usd": 1.2368,
        "at": "2026-09-24T01:10:37"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/dp83849i",
        "pages": 106,
        "sha256": "cda2b378740678e3",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 80,
        "described": 80,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
        "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": "77f4de0ca0c787b8b4416c735fddfcecf5cf4cea0ca3550f96f5c47c8664594c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "dp83849ivsx-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": "44600844fd80b488e0b93b324182def8d54140ca86b3b4c24de403c8a0551a63",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}