component
TMDS171IRGZT
Public Made by Adomby adom
Texas Instruments Interface - Specialized, VQFN-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": "tmds171irgzt",
"title": "TMDS171IRGZT",
"brief": "Texas Instruments Interface - Specialized, VQFN-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",
"communication interface chip-uart-485-232",
"tmds171irgzt",
"factory-2.0.0",
"extractor-text"
],
"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": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
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"file": "tmds171irgzt.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7,
7,
0.77
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"zmin_mm": 0,
"centre_offset_mm": 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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7,
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "fc54565483dd466ae2b2994efff7a4ad1af1e412239d49de8fc6160ac043b09b",
"checked": "2026-10-11",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "VQFN-48-EP(7x7)",
"Category": "Communication Interface Chip/UART/485/232",
"Pins": "49"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"tmds171irgzt"
],
"discovery_pitch": "TMDS171IRGZT (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
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"path": "docs/hero.png"
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"files": [
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