TMDS171IRGZT

{
  "slug": "tmds171irgzt",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Interface - Specialized, VQFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "tmds171irgzt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "README.md",
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    "tmds171irgzt.glb",
    "tmds171irgzt.step",
    "tmds171irgzt.lbr",
    "docs/hero.png",
    "docs/tmds171irgzt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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    "tmds171irgzt-hero.overlay.json"
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  "component": {
    "mpn": "TMDS171IRGZT",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-48-EP(7x7)",
    "pin_count": 49,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "Interface - Specialized",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tmds171",
    "parts": {
      "symbol": "tmds171irgzt.kicad_sym",
      "footprint": "tmds171irgzt.kicad_mod",
      "model_3d": "tmds171irgzt-hero.glb",
      "model_3d_plain": "tmds171irgzt.glb",
      "model_3d_step": "tmds171irgzt-etched.step",
      "model_3d_step_plain": "tmds171irgzt.step",
      "lbr": "tmds171irgzt.lbr"
    },
    "distributor_links": {
      "lcsc": "C2674096",
      "digikey": "296-45100-2-ND",
      "mouser": "595-TMDS171IRGZT"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T09:13:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-45100-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TMDS171IRGZT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SWAP/POL",
        "type": "input",
        "description": "Three-level receive polarity and lane swap control: H swaps receive polarity (retimer mode only), L swaps receive lanes (retimer and redriver modes), and no connect gives normal operation."
      },
      {
        "number": "2",
        "name": "IN_D2p",
        "type": "input",
        "description": "Channel 2 positive TMDS differential main-link input (fail-safe pin)."
      },
      {
        "number": "3",
        "name": "IN_D2n",
        "type": "input",
        "description": "Channel 2 negative TMDS differential main-link input (fail-safe pin)."
      },
      {
        "number": "4",
        "name": "HPD_SRC",
        "type": "output",
        "description": "Hot plug detect output to the source side."
      },
      {
        "number": "5",
        "name": "IN_D1p",
        "type": "input",
        "description": "Channel 1 positive TMDS differential main-link input (fail-safe pin)."
      },
      {
        "number": "6",
        "name": "IN_D1n",
        "type": "input",
        "description": "Channel 1 negative TMDS differential main-link input (fail-safe pin)."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "8",
        "name": "IN_D0p",
        "type": "input",
        "description": "Channel 0 positive TMDS differential main-link input (fail-safe pin)."
      },
      {
        "number": "9",
        "name": "IN_D0n",
        "type": "input",
        "description": "Channel 0 negative TMDS differential main-link input (fail-safe pin)."
      },
      {
        "number": "10",
        "name": "I2C_EN/PIN",
        "type": "input",
        "description": "High puts the device in I2C control mode; low puts the device in pin-strap mode."
      },
      {
        "number": "11",
        "name": "IN_CLKp",
        "type": "input",
        "description": "Clock positive differential main-link input (fail-safe pin)."
      },
      {
        "number": "12",
        "name": "IN_CLKn",
        "type": "input",
        "description": "Clock negative differential main-link input (fail-safe pin)."
      },
      {
        "number": "13",
        "name": "VCC",
        "type": "power_in",
        "description": "3.3 V power supply (recommended 3.135 V to 3.465 V)."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "1.2 V power supply (recommended 1.1 V to 1.27 V)."
      },
      {
        "number": "15",
        "name": "SCL_CTL",
        "type": "bidirectional",
        "description": "I2C clock signal when I2C_EN/PIN is high; pin strapping takes priority and cannot be changed by I2C when I2C_EN is low."
      },
      {
        "number": "16",
        "name": "SDA_CTL",
        "type": "bidirectional",
        "description": "I2C data signal when I2C_EN/PIN is high; pin strapping takes priority and cannot be changed by I2C when I2C_EN is low."
      },
      {
        "number": "17",
        "name": "SIG_EN",
        "type": "input",
        "description": "Signal detector enable: low disables the signal detect circuit with termination always connected (default), high enables it so that the device enters standby when no valid clock is present; internal weak pull-down."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "19",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "20",
        "name": "PRE_SEL",
        "type": "input",
        "description": "Three-level de-emphasis control when I2C_EN/PIN is low: L = -2 dB, no connect = 0 dB, H = reserved; when I2C_EN/PIN is high, de-emphasis is set through I2C."
      },
      {
        "number": "21",
        "name": "EQ_SEL/A0",
        "type": "input",
        "description": "Input receive equalization strap when I2C_EN/PIN is low: L = fixed 7.5 dB, no connect = adaptive EQ, H = fixed 14 dB; when I2C_EN/PIN is high it is I2C address bit 1 (2-level)."
      },
      {
        "number": "22",
        "name": "VSADJ",
        "type": "input",
        "description": "TMDS output voltage swing control, set by a nominal 7.06 kΩ (1%) resistor to GND."
      },
      {
        "number": "23",
        "name": "VDD",
        "type": "power_in",
        "description": "1.2 V power supply (recommended 1.1 V to 1.27 V)."
      },
      {
        "number": "24",
        "name": "VDD",
        "type": "power_in",
        "description": "1.2 V power supply (recommended 1.1 V to 1.27 V)."
      },
      {
        "number": "25",
        "name": "OUT_CLKn",
        "type": "output",
        "description": "TMDS clock negative differential output."
      },
      {
        "number": "26",
        "name": "OUT_CLKp",
        "type": "output",
        "description": "TMDS clock positive differential output."
      },
      {
        "number": "27",
        "name": "A1",
        "type": "input",
        "description": "High address bit 2 for I2C programming with a weak internal pull-down; leave as no connect when I2C_EN/PIN is low for pin-strap mode."
      },
      {
        "number": "28",
        "name": "OUT_D0n",
        "type": "output",
        "description": "TMDS data channel 0 negative differential output."
      },
      {
        "number": "29",
        "name": "OUT_D0p",
        "type": "output",
        "description": "TMDS data channel 0 positive differential output."
      },
      {
        "number": "30",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "31",
        "name": "OUT_D1n",
        "type": "output",
        "description": "TMDS data channel 1 negative differential output."
      },
      {
        "number": "32",
        "name": "OUT_D1p",
        "type": "output",
        "description": "TMDS data channel 1 positive differential output."
      },
      {
        "number": "33",
        "name": "HPD_SNK",
        "type": "input",
        "description": "Hot plug detect input from the sink side."
      },
      {
        "number": "34",
        "name": "OUT_D2n",
        "type": "output",
        "description": "TMDS data channel 2 negative differential output."
      },
      {
        "number": "35",
        "name": "OUT_D2p",
        "type": "output",
        "description": "TMDS data channel 2 positive differential output."
      },
      {
        "number": "36",
        "name": "TX_TERM_CTL",
        "type": "input",
        "description": "Three-level transmit termination control: H = no transmit termination, L = reserved, no connect = automatic selection (150-300 Ω differential near-end termination for 2 Gbps < DR ≤ 3.4 Gbps, none below 2 Gbps)."
      },
      {
        "number": "37",
        "name": "VDD",
        "type": "power_in",
        "description": "1.2 V power supply (recommended 1.1 V to 1.27 V)."
      },
      {
        "number": "38",
        "name": "SCL_SNK",
        "type": "bidirectional",
        "description": "Sink-side TMDS port bidirectional DDC clock line."
      },
      {
        "number": "39",
        "name": "SDA_SNK",
        "type": "bidirectional",
        "description": "Sink-side TMDS port bidirectional DDC data line."
      },
      {
        "number": "40",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "41",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "42",
        "name": "OE",
        "type": "input",
        "description": "Operation enable/reset: L = power-down mode, H = normal operation; internal weak pull-up, and the device resets on a high-to-low transition."
      },
      {
        "number": "43",
        "name": "VCC",
        "type": "power_in",
        "description": "3.3 V power supply (recommended 3.135 V to 3.465 V)."
      },
      {
        "number": "44",
        "name": "ARC_OUT",
        "type": "output",
        "description": "Audio return channel output."
      },
      {
        "number": "45",
        "name": "SPDIF_IN",
        "type": "input",
        "description": "S/PDIF signal input."
      },
      {
        "number": "46",
        "name": "SCL_SRC",
        "type": "bidirectional",
        "description": "Source-side TMDS port bidirectional DDC clock line."
      },
      {
        "number": "47",
        "name": "SDA_SRC",
        "type": "bidirectional",
        "description": "Source-side TMDS port bidirectional DDC data line."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "1.2 V power supply (recommended 1.1 V to 1.27 V)."
      },
      {
        "number": "49",
        "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: The datasheet lists the thermal pad only as 'Thermal Pad, G (Ground)' with no pin number, so it is n; The pin-function table gives differential pairs as one entry (e.g., 'IN_D2p/n 2, 3'). The p/n-to-num; Pin 1 (SWAP/POL), pins 10, 20, 21, 27, 36, 42 and 17 are strapped or 3-level control pins; they are ",
          "exposed pad 49 added from the footprint"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0993,
        "at": "2026-10-11T09:13:11"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tmds171",
        "pages": 63,
        "sha256": "f4e095e1a42e2b25",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tmds171irgzt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tmds171irgzt-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": "fc54565483dd466ae2b2994efff7a4ad1af1e412239d49de8fc6160ac043b09b",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}