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TMDS181RGZR
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Texas Instruments Interface - Specialized, QFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+86@@ -0,0 +1,86 @@+# TMDS181RGZR++**Texas Instruments** · Interface - Specialized · QFN-48-EP(7x7)++TMDS181RGZR from Texas Instruments, in a QFN-48-EP(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | SWAP/POL | input | 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. |+| 2 | IN_D2p | input | Channel 2 differential input pair for main link TMDS data transmission. |+| 3 | IN_D2n | input | Channel 2 differential input pair for main link TMDS data transmission. |+| 4 | HPD_SRC | output | Hot plug detect output to source side. |+| 5 | IN_D1p | input | Channel 1 differential input pair for main link TMDS data transmission. |+| 6 | IN_D1n | input | Channel 1 differential input pair for main link TMDS data transmission. |+| 7 | GND | power_in | Ground. |+| 8 | IN_D0p | input | Channel 0 differential input pair for main link TMDS data transmission. |+| 9 | IN_D0n | input | Channel 0 differential input pair for main link TMDS data transmission. |+| 10 | I2C_EN/PIN | input | 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. |+| 11 | IN_CLKp | input | Clock differential input pair for main link TMDS clock transmission. |+| 12 | IN_CLKn | input | Clock differential input pair for main link TMDS clock transmission. |+| 13 | VCC | power_in | 3.3 V power supply. |+| 14 | VDD | power_in | 1.2 V power supply. |+| 15 | SCL_CTL | input | I2C clock signal input for I2C control interface. |+| 16 | SDA_CTL | bidirectional | I2C data signal bidirectional pin for I2C control interface. |+| 17 | SIG_EN | input | Signal detector circuit enable input with internal weak pull-down where low disables and high enables the signal detect circuit. |+| 18 | NC | unconnected | No connect. |+| 19 | GND | power_in | Ground. |+| 20 | PRE_SEL | input | 3-level de-emphasis control input when I2C_EN/PIN is low where L selects -2 dB and NC selects 0 dB. |+| 21 | EQ_SEL/A0 | input | 3-level input receive equalization control when I2C_EN/PIN is low or I2C address bit 0 when high. |+| 22 | VSADJ | input | TMDS-compliant voltage swing control input using nominal resistor value of 4.5 kΩ to 7.06 kΩ to GND. |+| 23 | VDD | power_in | 1.2 V power supply. |+| 24 | VDD | power_in | 1.2 V power supply. |+| 25 | OUT_CLKn | output | TMDS data clock differential output pair with fail-safe capability. |+| 26 | OUT_CLKp | output | TMDS data clock differential output pair with fail-safe capability. |+| 27 | A1 | input | I2C address bit 2 input with internal weak pull-down for I2C programming. |+| 28 | OUT_D0n | output | TMDS data 0 differential output pair with fail-safe capability. |+| 29 | OUT_D0p | output | TMDS data 0 differential output pair with fail-safe capability. |+| 30 | GND | power_in | Ground. |+| 31 | OUT_D1n | output | TMDS data 1 differential output pair with fail-safe capability. |+| 32 | OUT_D1p | output | TMDS data 1 differential output pair with fail-safe capability. |+| 33 | HPD_SNK | input | Hot plug detect input from sink side. |+| 34 | OUT_D2n | output | TMDS data 2 differential output pair with fail-safe capability. |+| 35 | OUT_D2p | output | TMDS data 2 differential output pair with fail-safe capability. |+| 36 | TX_TERM_CTL | input | 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. |+| 37 | VDD | power_in | 1.2 V power supply. |+| 38 | SCL_SNK | bidirectional | Sink side TMDS port bidirectional DDC clock line. |+| 39 | SDA_SNK | bidirectional | Sink side TMDS port bidirectional DDC data line. |+| 40 | NC | unconnected | No connect. |+| 41 | GND | power_in | Ground. |+| 42 | OE | input | Operation enable/reset input where low selects power-down mode and high selects normal operation with internal weak pull-up. |+| 43 | VCC | power_in | 3.3 V power supply. |+| 44 | ARC_OUT | bidirectional | Audio return channel output signal. |+| 45 | SPDIF_IN | bidirectional | SPDIF signal input. |+| 46 | SCL_SRC | bidirectional | Source side TMDS port bidirectional DDC clock line. |+| 47 | SDA_SRC | bidirectional | Source side TMDS port bidirectional DDC data line. |+| 48 | VDD | power_in | 1.2 V power supply. |+| 49 | GND | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | QFN-48-EP(7x7) |+| Category | Interface |+| Pins | 49 |++## CAD (KiCad official)++- Symbol: `TMDS181RGZR`+- Footprint: `Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm`+- 3D model: QFN-48-EP(7x7) (KiCad packages3D, STEP)+- 3D model files: `tmds181rgzr-etched.step` / `tmds181rgzr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmds181rgzr.step` / `tmds181rgzr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tmds181) (59 pp, sha256 `80f8eef3073a8094`, retrieved 2026-10-06, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/tmds181rgzr-datasheet.pdf)
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"model_3d_step": "tmds181rgzr-etched.step",+ "model_3d_step_plain": "tmds181rgzr.step",+ "lbr": "tmds181rgzr.lbr"+ },+ "distributor_links": {+ "lcsc": 206189,+ "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"+ },+ "mouser": {+ "pn": "595-TMDS181RGZR",+ "status": "found"+ }+ },+ "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": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}