TDES954RGZT

{
  "schema_version": 1,
  "type": "component",
  "slug": "tdes954rgzt",
  "title": "TDES954RGZT",
  "brief": "TEXAS INSTRUMENTS Global Sourcing Parts, VQFN-48(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",
    "global sourcing parts",
    "tdes954rgzt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TDES954RGZT",
    "manufacturer": "TEXAS INSTRUMENTS",
    "package": "VQFN-48(7x7)",
    "pin_count": 49,
    "category": "Global Sourcing Parts",
    "subcategory": "Global Sourcing Parts",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tdes954",
    "parts": {
      "symbol": "tdes954rgzt.kicad_sym",
      "footprint": "tdes954rgzt.kicad_mod",
      "model_3d": "tdes954rgzt-hero.glb",
      "model_3d_plain": "tdes954rgzt-etched.glb",
      "model_3d_step": "tdes954rgzt-etched.step",
      "model_3d_step_plain": "tdes954rgzt.step",
      "lbr": "tdes954rgzt.lbr"
    },
    "distributor_links": {
      "lcsc": "C3189605",
      "digikey": "296-TDES954RGZTTR-ND",
      "mouser": "595-TDES954RGZT"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T21:12:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-TDES954RGZTTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TDES954RGZT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "I2C_SDA",
        "type": "bidirectional",
        "description": "I2C serial data line for the control bus, open-drain, requiring an external 2 kΩ to 4.7 kΩ pullup to a 1.8 V or 3.3 V rail, with inputs 3.3 V tolerant."
      },
      {
        "number": "2",
        "name": "I2C_SCL",
        "type": "bidirectional",
        "description": "I2C serial clock line, open-drain, requiring an external 2 kΩ to 4.7 kΩ pullup to a 1.8 V or 3.3 V rail, with inputs 3.3 V tolerant."
      },
      {
        "number": "3",
        "name": "VDD11_D",
        "type": "power_in",
        "description": "1.1 V internal rail decoupling pin; with VDD_SEL low it must not be connected to a 1.1 V rail and needs 0.1 to 0.01 µF plus 4.7 µF to GND, and with VDD_SEL high it connects to an external 1.1 V supply with 0.01 µF plus 1 µF to GND."
      },
      {
        "number": "4",
        "name": "XOUT",
        "type": "output",
        "description": "Crystal oscillator output for a 25 MHz parallel 18 pF load crystal, to be left NC when XIN/REFCLK is driven by a reference clock."
      },
      {
        "number": "5",
        "name": "XIN/REFCLK",
        "type": "input",
        "description": "Reference clock or crystal input, requiring a 23 MHz to 26 MHz clock (100 ppm) or an external crystal between XIN and XOUT, and REFCLK must be continuous."
      },
      {
        "number": "6",
        "name": "BISTEN",
        "type": "input",
        "description": "BIST enable strap: high enables BIST mode and low disables it, and it should be connected directly to GND if unused."
      },
      {
        "number": "7",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Supply for the single-ended outputs and control inputs at 1.8 V or 3.3 V, where a 1.8 V supply must be within ±100 mV of VDD18, with a minimum 1 µF and 0.01 µF capacitor to GND per pin."
      },
      {
        "number": "8",
        "name": "GPIO6",
        "type": "bidirectional",
        "description": "General-purpose I/O for sensor sync and control, disabled at power-up with a 35 kΩ typical pulldown, and may be left open if unused."
      },
      {
        "number": "9",
        "name": "GPIO5",
        "type": "bidirectional",
        "description": "General-purpose I/O for sensor sync and control, disabled at power-up with a 35 kΩ typical pulldown, and may be left open if unused."
      },
      {
        "number": "10",
        "name": "GPIO4",
        "type": "bidirectional",
        "description": "General-purpose I/O for sensor sync and control, disabled at power-up with a 35 kΩ typical pulldown, and may be left open if unused."
      },
      {
        "number": "11",
        "name": "CSI_CLK0N",
        "type": "output",
        "description": "Negative leg of the CSI-2 D-PHY differential clock lane 0 output to the processor, left NC if unused."
      },
      {
        "number": "12",
        "name": "CSI_CLK0P",
        "type": "output",
        "description": "Positive leg of the CSI-2 D-PHY differential clock lane 0 output to the processor, left NC if unused."
      },
      {
        "number": "13",
        "name": "CSI_D0N",
        "type": "output",
        "description": "Negative leg of CSI-2 D-PHY differential data lane 0 output to the processor, left NC if unused."
      },
      {
        "number": "14",
        "name": "CSI_D0P",
        "type": "output",
        "description": "Positive leg of CSI-2 D-PHY differential data lane 0 output to the processor, left NC if unused."
      },
      {
        "number": "15",
        "name": "CSI_D1N",
        "type": "output",
        "description": "Negative leg of CSI-2 D-PHY differential data lane 1 output to the processor, left NC if unused."
      },
      {
        "number": "16",
        "name": "CSI_D1P",
        "type": "output",
        "description": "Positive leg of CSI-2 D-PHY differential data lane 1 output to the processor, left NC if unused."
      },
      {
        "number": "17",
        "name": "VDD18_CSI",
        "type": "power_in",
        "description": "1.8 V (±5%) supply for the CSI-2 output block, requiring 1 µF and 0.01 µF capacitors to GND."
      },
      {
        "number": "18",
        "name": "CSI_CLK1N",
        "type": "output",
        "description": "Negative leg of the CSI-2 D-PHY differential clock lane 1 output, used for the replicated output in 2-channel replicate mode, left NC if unused."
      },
      {
        "number": "19",
        "name": "CSI_CLK1P",
        "type": "output",
        "description": "Positive leg of the CSI-2 D-PHY differential clock lane 1 output, used for the replicated output in 2-channel replicate mode, left NC if unused."
      },
      {
        "number": "20",
        "name": "VDD11_CSI",
        "type": "power_in",
        "description": "1.1 V CSI rail; with VDD_SEL low it must not be connected to a 1.1 V rail and needs 0.1 to 0.01 µF plus 4.7 µF to GND, and with VDD_SEL high it connects to an external 1.1 V supply with 0.01 µF plus 10 µF to GND."
      },
      {
        "number": "21",
        "name": "CSI_D2N",
        "type": "output",
        "description": "Negative leg of CSI-2 D-PHY differential data lane 2 output to the processor, left NC if unused."
      },
      {
        "number": "22",
        "name": "CSI_D2P",
        "type": "output",
        "description": "Positive leg of CSI-2 D-PHY differential data lane 2 output to the processor, left NC if unused."
      },
      {
        "number": "23",
        "name": "CSI_D3N",
        "type": "output",
        "description": "Negative leg of CSI-2 D-PHY differential data lane 3 output to the processor, left NC if unused."
      },
      {
        "number": "24",
        "name": "CSI_D3P",
        "type": "output",
        "description": "Positive leg of CSI-2 D-PHY differential data lane 3 output to the processor, left NC if unused."
      },
      {
        "number": "25",
        "name": "GPIO3/INTB",
        "type": "bidirectional",
        "description": "Open-drain active-low GPIO3 that can serve as the INTB interrupt, requiring a 4.7 kΩ pullup to VDDIO, with the function set by status registers."
      },
      {
        "number": "26",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "General-purpose I/O for sensor sync and control, disabled at power-up with a 35 kΩ typical pulldown, and may be left open if unused."
      },
      {
        "number": "27",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General-purpose I/O for sensor sync and control, disabled at power-up with a 35 kΩ typical pulldown, and may be left open if unused."
      },
      {
        "number": "28",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General-purpose I/O for sensor sync and control, disabled at power-up with a 35 kΩ typical pulldown, and may be left open if unused."
      },
      {
        "number": "29",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Supply for the single-ended outputs and control inputs at 1.8 V or 3.3 V, where a 1.8 V supply must be within ±100 mV of VDD18, with a minimum 1 µF and 0.01 µF capacitor to GND per pin."
      },
      {
        "number": "30",
        "name": "PDB",
        "type": "input",
        "description": "Power-down inverted input with 50 kΩ internal pulldown, where high enables the device and low powers it down with CSI-2 outputs tri-stated, it is 3.3 V tolerant, and it should stay low until supplies reach minimum levels."
      },
      {
        "number": "31",
        "name": "VDD18_FPD1",
        "type": "power_in",
        "description": "1.8 V (±5%) analog supply for V3Link front end block 1, requiring 10 µF and 0.1 µF capacitors to GND at each VDD pin."
      },
      {
        "number": "32",
        "name": "RIN1+",
        "type": "bidirectional",
        "description": "Positive V3Link receive input for channel 1 that also carries the bidirectional control back channel, must be AC coupled, and should be left NC with RX_PORT_CTL bit 1 cleared if unused."
      },
      {
        "number": "33",
        "name": "RIN1-",
        "type": "bidirectional",
        "description": "Negative V3Link receive input for channel 1 that also carries the bidirectional control back channel, must be AC coupled, and should be left NC with RX_PORT_CTL bit 1 cleared if unused."
      },
      {
        "number": "34",
        "name": "VDD11_FPD1",
        "type": "power_in",
        "description": "1.1 V analog rail for V3Link front end block 1; with VDD_SEL low it must not be connected to a 1.1 V rail, and with VDD_SEL high it connects to an external 1.1 V supply with 0.01 µF to GND and a 10 µF capacitor shared with VDD11_FPD0."
      },
      {
        "number": "35",
        "name": "IDX",
        "type": "input",
        "description": "I2C device ID address strap sampled after enable, set with a pullup to VDD18 and pulldown to GND as a voltage divider."
      },
      {
        "number": "36",
        "name": "VDD18_P1",
        "type": "power_in",
        "description": "1.8 V (±5%) digital supply, requiring 0.01 µF capacitors to GND at each VDD pin along with 10 µF bulk decoupling."
      },
      {
        "number": "37",
        "name": "MODE",
        "type": "input",
        "description": "Mode select strap that sets the V3Link operating mode from a voltage divider on VDD18, sampled 1 ms after PDB goes high."
      },
      {
        "number": "38",
        "name": "CMLOUTP",
        "type": "output",
        "description": "Positive monitor loop-through differential output, typically routed to test points or left NC and terminated with 100 Ω differential when monitored."
      },
      {
        "number": "39",
        "name": "CMLOUTN",
        "type": "output",
        "description": "Negative monitor loop-through differential output, typically routed to test points or left NC and terminated with 100 Ω differential when monitored."
      },
      {
        "number": "40",
        "name": "VDD18_FPD0",
        "type": "power_in",
        "description": "1.8 V (±5%) analog supply for V3Link front end block 0, requiring 10 µF and 0.1 µF capacitors to GND at each VDD pin."
      },
      {
        "number": "41",
        "name": "RIN0+",
        "type": "bidirectional",
        "description": "Positive V3Link receive input for channel 0 that also carries the bidirectional control back channel, must be AC coupled, and should be left NC with RX_PORT_CTL bit 0 cleared if unused."
      },
      {
        "number": "42",
        "name": "RIN0-",
        "type": "bidirectional",
        "description": "Negative V3Link receive input for channel 0 that also carries the bidirectional control back channel, must be AC coupled, and should be left NC with RX_PORT_CTL bit 0 cleared if unused."
      },
      {
        "number": "43",
        "name": "VDD11_FPD0",
        "type": "power_in",
        "description": "1.1 V analog rail for V3Link front end block 0; with VDD_SEL low it must not be connected to a 1.1 V rail, and with VDD_SEL high it connects to an external 1.1 V supply with 0.01 µF to GND and a 10 µF capacitor shared with VDD11_FPD1."
      },
      {
        "number": "44",
        "name": "RES",
        "type": "input",
        "description": "Reserved pin that must be tied to GND for normal operation."
      },
      {
        "number": "45",
        "name": "VDD18_P0",
        "type": "power_in",
        "description": "1.8 V (±5%) digital supply, requiring 0.01 µF capacitors to GND at each VDD pin along with 10 µF bulk decoupling."
      },
      {
        "number": "46",
        "name": "VDD_SEL",
        "type": "input",
        "description": "Strap that selects the 1.1 V supply mode: LOW selects the internal 1.1 V LDO on VDD11, HIGH selects an external 1.1 V supply that must stay below VDD18 and be applied after VDD18."
      },
      {
        "number": "47",
        "name": "PASS",
        "type": "output",
        "description": "PASS status output that is high when pass conditions are met and low when one or more pass conditions fail, including BIST error-free transmission."
      },
      {
        "number": "48",
        "name": "LOCK",
        "type": "output",
        "description": "LOCK status output that is high when the V3Link receiver is locked and Rx ports are active, and low when the receiver is unlocked."
      },
      {
        "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 exposed thermal pad (DAP = GND) has no printed numeric pin number in the datasheet, so it is lis; The Pin Functions table gives no I/O type for CMLOUTN (pin 39); it is typed as output based on the C; The table gives RES only as type 'PD' (pulldown) with no I/O class; it is typed as input from the st",
          "exposed pad 49 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint",
          "1/49 pins cited to the wrong page (name found elsewhere): ['4:XOUT@p4']"
        ],
        "pages_sent": 24,
        "cost_usd": 0.1757,
        "at": "2026-10-28T21:12:30"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tdes954",
        "pages": 167,
        "sha256": "16b4862198dceafd",
        "source_tier": "mfr"
      },
      "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": [
      {
        "file": "tdes954rgzt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7,
          7,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tdes954rgzt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7,
          7,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e82d92f46024c3e429eb3179941b6623d3d7951c83deb3dc2b1aff2caa0767d6",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "RGZ",
      "source_page": 164,
      "D": {
        "nom_mm": 7,
        "range_mm": [
          6.85,
          7.15
        ]
      },
      "E1": {
        "nom_mm": 7,
        "range_mm": [
          6.85,
          7.15
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1,
        "range_mm": [
          null,
          1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "tdes954rgzt.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TEXAS INSTRUMENTS",
      "Package": "VQFN-48(7x7)",
      "Category": "Global Sourcing Parts",
      "Pins": "49"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "16b4862198dceafd42a8762894aec636971fb38928a2872308a5c4df720656fd",
      "rows": [
        {
          "name": "Supply voltage VDD18 (VDD18_CSI, VDD18_P1, VDD18_P0, VDD18_FPD0, VDD18_FPD1)",
          "symbol": "VDD18",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 2.16,
          "conditions": "Over operating free-air temperature range",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VDD11 (VDD11_CSI, VDD11_D, VDD11_FPD0, VDD11_FPD1)",
          "symbol": "VDD11",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 1.32,
          "conditions": "Over operating free-air temperature range; and < V(VDD18)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VDDIO supply voltage",
          "symbol": "VDDIO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.96,
          "conditions": "Over operating free-air temperature range",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "V3Link input voltage (RIN0+, RIN0-, RIN1+, RIN1-), device powered up",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 2.75,
          "conditions": "Device powered up (VDD18, VDD11 and VDDIO within recommended operating conditions)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "V3Link input voltage (RIN0+, RIN0-, RIN1+, RIN1-), device powered down, transient",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 1.45,
          "conditions": "Device powered down (VDD18, VDD11 and VDDIO below recommended operating conditions); transient voltage",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "V3Link input voltage (RIN0+, RIN0-, RIN1+, RIN1-), device powered down, DC",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 1.35,
          "conditions": "Device powered down (VDD18, VDD11 and VDDIO below recommended operating conditions); DC voltage",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "PDB input voltage",
          "symbol": "PDB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.96,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Open-drain voltage (GPIO3/INTB, I2C_SDA, I2C_SCL)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.96,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage V(VDD18)",
          "symbol": "V(VDD18)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.71,
          "typ": 1.8,
          "max": 1.89,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage V(VDD11)",
          "symbol": "V(VDD11)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.045,
          "typ": 1.1,
          "max": 1.155,
          "conditions": "VDD_SEL = HIGH only",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage offset V(VDD11) - V(VDDIO)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "mV",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "V(VDDIO) = 1.8 V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "LVCMOS supply voltage V(VDDIO)",
          "symbol": "V(VDDIO)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.71,
          "typ": 1.8,
          "max": 1.89,
          "conditions": "V(VDDIO) = 1.8 V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "LVCMOS supply voltage V(VDDIO)",
          "symbol": "V(VDDIO)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "V(VDDIO) = 3.3 V",
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