component
TMDS181RGZR
Public Made by Adomby adom
Texas Instruments Interface - Specialized, QFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "tmds181rgzr",
"title": "TMDS181RGZR",
"brief": "Texas Instruments Interface - Specialized, QFN-48-EP(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",
"tmds181rgzr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "TMDS181RGZR",
"manufacturer": "Texas Instruments",
"package": "QFN-48-EP(7x7)",
"pin_count": 49,
"category": "Interface",
"subcategory": "Interface - Specialized",
"datasheet": "https://www.ti.com/cn/lit/gpn/tmds181",
"parts": {
"symbol": "tmds181rgzr.kicad_sym",
"footprint": "tmds181rgzr.kicad_mod",
"model_3d": "tmds181rgzr-hero.glb",
"model_3d_plain": "tmds181rgzr.glb",
"model_3d_step": "tmds181rgzr-etched.step",
"model_3d_step_plain": "tmds181rgzr.step",
"lbr": "tmds181rgzr.lbr"
},
"distributor_links": {
"lcsc": "C206189",
"digikey": "296-43207-2-ND",
"mouser": "595-TMDS181RGZR"
},
"distributor_check": {
"checked_at": "2026-10-06T04:14:46Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-43207-2-ND",
"status": "found",
"lifecycle": "Active"
},
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"pn": "595-TMDS181RGZR",
"status": "found"
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},
"pins": [
{
"number": "1",
"name": "SWAP/POL",
"type": "input",
"description": "3-level input lane SWAP and polarity control pin with H selecting polarity swap in retimer mode, L selecting lanes swap, and NC selecting normal operation."
},
{
"number": "2",
"name": "IN_D2p",
"type": "input",
"description": "Channel 2 differential input pair for main link TMDS data transmission."
},
{
"number": "3",
"name": "IN_D2n",
"type": "input",
"description": "Channel 2 differential input pair for main link TMDS data transmission."
},
{
"number": "4",
"name": "HPD_SRC",
"type": "output",
"description": "Hot plug detect output to source side."
},
{
"number": "5",
"name": "IN_D1p",
"type": "input",
"description": "Channel 1 differential input pair for main link TMDS data transmission."
},
{
"number": "6",
"name": "IN_D1n",
"type": "input",
"description": "Channel 1 differential input pair for main link TMDS data transmission."
},
{
"number": "7",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "8",
"name": "IN_D0p",
"type": "input",
"description": "Channel 0 differential input pair for main link TMDS data transmission."
},
{
"number": "9",
"name": "IN_D0n",
"type": "input",
"description": "Channel 0 differential input pair for main link TMDS data transmission."
},
{
"number": "10",
"name": "I2C_EN/PIN",
"type": "input",
"description": "I2C Enable/Pin strap mode select input where high level puts device into I2C control mode and low level puts device into pin strap mode."
},
{
"number": "11",
"name": "IN_CLKp",
"type": "input",
"description": "Clock differential input pair for main link TMDS clock transmission."
},
{
"number": "12",
"name": "IN_CLKn",
"type": "input",
"description": "Clock differential input pair for main link TMDS clock transmission."
},
{
"number": "13",
"name": "VCC",
"type": "power_in",
"description": "3.3 V power supply."
},
{
"number": "14",
"name": "VDD",
"type": "power_in",
"description": "1.2 V power supply."
},
{
"number": "15",
"name": "SCL_CTL",
"type": "input",
"description": "I2C clock signal input for I2C control interface."
},
{
"number": "16",
"name": "SDA_CTL",
"type": "bidirectional",
"description": "I2C data signal bidirectional pin for I2C control interface."
},
{
"number": "17",
"name": "SIG_EN",
"type": "input",
"description": "Signal detector circuit enable input with internal weak pull-down where low disables and high enables the signal detect circuit."
},
{
"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": "3-level de-emphasis control input when I2C_EN/PIN is low where L selects -2 dB and NC selects 0 dB."
},
{
"number": "21",
"name": "EQ_SEL/A0",
"type": "input",
"description": "3-level input receive equalization control when I2C_EN/PIN is low or I2C address bit 0 when high."
},
{
"number": "22",
"name": "VSADJ",
"type": "input",
"description": "TMDS-compliant voltage swing control input using nominal resistor value of 4.5 kΩ to 7.06 kΩ to GND."
},
{
"number": "23",
"name": "VDD",
"type": "power_in",
"description": "1.2 V power supply."
},
{
"number": "24",
"name": "VDD",
"type": "power_in",
"description": "1.2 V power supply."
},
{
"number": "25",
"name": "OUT_CLKn",
"type": "output",
"description": "TMDS data clock differential output pair with fail-safe capability."
},
{
"number": "26",
"name": "OUT_CLKp",
"type": "output",
"description": "TMDS data clock differential output pair with fail-safe capability."
},
{
"number": "27",
"name": "A1",
"type": "input",
"description": "I2C address bit 2 input with internal weak pull-down for I2C programming."
},
{
"number": "28",
"name": "OUT_D0n",
"type": "output",
"description": "TMDS data 0 differential output pair with fail-safe capability."
},
{
"number": "29",
"name": "OUT_D0p",
"type": "output",
"description": "TMDS data 0 differential output pair with fail-safe capability."
},
{
"number": "30",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "31",
"name": "OUT_D1n",
"type": "output",
"description": "TMDS data 1 differential output pair with fail-safe capability."
},
{
"number": "32",
"name": "OUT_D1p",
"type": "output",
"description": "TMDS data 1 differential output pair with fail-safe capability."
},
{
"number": "33",
"name": "HPD_SNK",
"type": "input",
"description": "Hot plug detect input from sink side."
},
{
"number": "34",
"name": "OUT_D2n",
"type": "output",
"description": "TMDS data 2 differential output pair with fail-safe capability."
},
{
"number": "35",
"name": "OUT_D2p",
"type": "output",
"description": "TMDS data 2 differential output pair with fail-safe capability."
},
{
"number": "36",
"name": "TX_TERM_CTL",
"type": "input",
"description": "3-level transmit termination control input where H disables termination, L enables 75-150 Ω termination, and NC selects automatic termination based on data rate."
},
{
"number": "37",
"name": "VDD",
"type": "power_in",
"description": "1.2 V power supply."
},
{
"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 input where low selects power-down mode and high selects normal operation with internal weak pull-up."
},
{
"number": "43",
"name": "VCC",
"type": "power_in",
"description": "3.3 V power supply."
},
{
"number": "44",
"name": "ARC_OUT",
"type": "bidirectional",
"description": "Audio return channel output signal."
},
{
"number": "45",
"name": "SPDIF_IN",
"type": "bidirectional",
"description": "SPDIF 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."
},
{
"number": "49",
"name": "GND",
"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-4-5-20251001",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"exposed pad 49 added from the footprint",
"dropped thermal pad ['EP'] absent from footprint"
],
"pages_sent": 12,
"cost_usd": 0.1984,
"at": "2026-10-06T04:14:28"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/tmds181",
"pages": 59,
"sha256": "80f8eef3073a8094",
"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"
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},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "QFN-48-EP(7x7)",
"Category": "Interface",
"Pins": "49"
}
},
"variants": [],
"sections": [
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"discovery_triggers": [
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"discovery_pitch": "TMDS181RGZR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
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