DS90UB948TNKDTQ1

{
  "schema_version": 1,
  "type": "component",
  "slug": "ds90ub948tnkdtq1",
  "title": "DS90UB948TNKDTQ1",
  "brief": "Texas Instruments Serializers / Deserializers, WQFN-64-EP(9x9). 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",
    "ds90ub948tnkdtq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "DS90UB948TNKDTQ1",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-64-EP(9x9)",
    "pin_count": 65,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "Serializers / Deserializers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ds90ub948-q1.pdf",
    "parts": {
      "symbol": "ds90ub948tnkdtq1.kicad_sym",
      "footprint": "ds90ub948tnkdtq1.kicad_mod",
      "model_3d": "ds90ub948tnkdtq1-hero.glb",
      "model_3d_plain": "ds90ub948tnkdtq1-etched.glb",
      "model_3d_step": "ds90ub948tnkdtq1-etched.step",
      "model_3d_step_plain": "ds90ub948tnkdtq1.step",
      "lbr": "ds90ub948tnkdtq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2652229",
      "digikey": "296-40106-2-ND",
      "mouser": "595-DS90UB948TNKDTQ1"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T21:25:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-40106-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-DS90UB948TNKDTQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LOCK",
        "type": "output",
        "description": "Lock status output: high when the PLL has locked to the reference clock input, low when unlocked."
      },
      {
        "number": "2",
        "name": "CAP_I2S",
        "type": "passive",
        "description": "Decoupling capacitor connection for the on-chip regulator; datasheet recommends a 0.1-µF decoupling capacitor to GND."
      },
      {
        "number": "3",
        "name": "VDDIO",
        "type": "power_in",
        "description": "LVCMOS I/O supply, 1.8 V (±5%) or 3.3 V (±10%); requires 10-µF, 1-µF, 0.1-µF and 0.01-µF capacitors to GND."
      },
      {
        "number": "4",
        "name": "BISTC / INTB_IN",
        "type": "input",
        "description": "Multifunction pin: BIST clock select (0 = PCLK, 1 = 33 MHz) or interrupt input INTB_IN depending on register setting; weak 3-µA internal pulldown."
      },
      {
        "number": "5",
        "name": "BISTEN",
        "type": "input",
        "description": "BIST enable: 0 disables BIST mode, 1 enables BIST mode; weak 3-µA internal pulldown, tie to pulldown if unused."
      },
      {
        "number": "6",
        "name": "VDDL12_0",
        "type": "power_in",
        "description": "1.2-V (±5%) supply; requires 10-µF, 1-µF, 0.1-µF and 0.01-µF capacitors to GND at each VDD pin."
      },
      {
        "number": "7",
        "name": "SDOUT / GPIO0 / PASS",
        "type": "bidirectional",
        "description": "Multifunction pin: AA-mode I2S data output (SDOUT), GPIO0 (default logic LOW), or BIST PASS status output (PASS = 1 no error, 0 error detected)."
      },
      {
        "number": "8",
        "name": "SWC / GPIO1",
        "type": "bidirectional",
        "description": "Multifunction pin: AA-mode I2S word clock output or GPIO1 (default logic LOW), with weak 3-µA internal pulldown."
      },
      {
        "number": "9",
        "name": "I2S_DD / GPIO3",
        "type": "bidirectional",
        "description": "Multifunction pin: SS-mode I2S data output or GPIO3 (default logic LOW), with weak 3-µA internal pulldown."
      },
      {
        "number": "10",
        "name": "I2S_DC / GPIO2",
        "type": "bidirectional",
        "description": "Multifunction pin: SS-mode I2S data output or GPIO2 (default logic LOW), with weak 3-µA internal pulldown."
      },
      {
        "number": "11",
        "name": "I2S_DB / GPIO5_REG",
        "type": "bidirectional",
        "description": "Multifunction pin: SS-mode I2S data output or high-speed GPIO5 (I2C register control only, default logic LOW)."
      },
      {
        "number": "12",
        "name": "I2S_DA / GPIO6_REG",
        "type": "bidirectional",
        "description": "Multifunction pin: SS-mode I2S data output or high-speed GPIO6 (I2C register control only, default logic LOW)."
      },
      {
        "number": "13",
        "name": "I2S_CLK / GPIO8_REG",
        "type": "bidirectional",
        "description": "Multifunction pin: SS-mode I2S clock output or high-speed GPIO8 (I2C register control only, default logic LOW); disable the I2S jitter cleaner via 0x2B[7]=1 when used as I2S clock."
      },
      {
        "number": "14",
        "name": "I2S_WC / GPIO7_REG",
        "type": "bidirectional",
        "description": "Multifunction pin: SS-mode I2S word clock output or high-speed GPIO7 (I2C register control only, default logic LOW)."
      },
      {
        "number": "15",
        "name": "MCLK / GPIO9",
        "type": "bidirectional",
        "description": "Multifunction pin: AA-mode I2S system clock output or GPIO9 (default logic LOW), with weak 3-µA internal pulldown."
      },
      {
        "number": "16",
        "name": "D_GPIO3/CS",
        "type": "bidirectional",
        "description": "SPI peripheral select or high-speed GPIO3 (Dual Link Mode only, default tri-state), with weak 3-µA internal pulldown."
      },
      {
        "number": "17",
        "name": "D_GPIO2/SPLK",
        "type": "bidirectional",
        "description": "SPI clock or high-speed GPIO2 (Dual Link Mode only, default tri-state), with weak 3-µA internal pulldown."
      },
      {
        "number": "18",
        "name": "D_GPIO1/POCI",
        "type": "bidirectional",
        "description": "SPI controller input, peripheral output, or high-speed GPIO1 (Dual Link Mode only, default tri-state), with weak 3-µA internal pulldown."
      },
      {
        "number": "19",
        "name": "D_GPIO0/PICO",
        "type": "bidirectional",
        "description": "SPI controller output, peripheral input, or high-speed GPIO0 (Dual Link Mode only, default tri-state), with weak 3-µA internal pulldown."
      },
      {
        "number": "20",
        "name": "VDD12_LVDS",
        "type": "power_in",
        "description": "1.2-V (±5%) supply; requires 10-µF, 1-µF, 0.1-µF and 0.01-µF capacitors to GND."
      },
      {
        "number": "21",
        "name": "D7+",
        "type": "output",
        "description": "OpenLDI differential data output D7+; requires external 100-Ω termination for LVDS or leave unused as no connect."
      },
      {
        "number": "22",
        "name": "D7-",
        "type": "output",
        "description": "OpenLDI differential data output D7-; requires external 100-Ω termination for LVDS or leave unused as no connect."
      },
      {
        "number": "23",
        "name": "CLK2+",
        "type": "output",
        "description": "OpenLDI differential clock output CLK2+; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "24",
        "name": "CLK2-",
        "type": "output",
        "description": "OpenLDI differential clock output CLK2-; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "25",
        "name": "D6+",
        "type": "output",
        "description": "OpenLDI differential data output D6+; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "26",
        "name": "D6-",
        "type": "output",
        "description": "OpenLDI differential data output D6-; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "27",
        "name": "D5+",
        "type": "output",
        "description": "OpenLDI differential data output D5+; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "28",
        "name": "D5-",
        "type": "output",
        "description": "OpenLDI differential data output D5-; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "29",
        "name": "D4+",
        "type": "output",
        "description": "OpenLDI differential data output D4+; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "30",
        "name": "D4-",
        "type": "output",
        "description": "OpenLDI differential data output D4-; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "31",
        "name": "VDD33_B",
        "type": "power_in",
        "description": "3.3-V (±10%) supply powering the on-chip regulator; requires 10-µF, 1-µF, 0.1-µF and 0.01-µF capacitors to GND."
      },
      {
        "number": "32",
        "name": "VDDP12_LVDS",
        "type": "power_in",
        "description": "1.2-V (±5%) supply for the LVDS output; requires 10-µF, 1-µF, 0.1-µF and 0.01-µF capacitors to GND."
      },
      {
        "number": "33",
        "name": "VDD25_CAP",
        "type": "passive",
        "description": "Decoupling capacitor connection for the on-chip regulator; datasheet recommends a 0.1-µF decoupling capacitor to GND."
      },
      {
        "number": "34",
        "name": "D3+",
        "type": "output",
        "description": "OpenLDI differential data output D3+; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "35",
        "name": "D3-",
        "type": "output",
        "description": "OpenLDI differential data output D3-; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "36",
        "name": "CLK1+",
        "type": "output",
        "description": "OpenLDI differential clock output CLK1+; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "37",
        "name": "CLK1-",
        "type": "output",
        "description": "OpenLDI differential clock output CLK1-; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "38",
        "name": "D2+",
        "type": "output",
        "description": "OpenLDI differential data output D2+; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "39",
        "name": "D2-",
        "type": "output",
        "description": "OpenLDI differential data output D2-; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "40",
        "name": "D1+",
        "type": "output",
        "description": "OpenLDI differential data output D1+; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "41",
        "name": "D1-",
        "type": "output",
        "description": "OpenLDI differential data output D1-; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "42",
        "name": "D0+",
        "type": "output",
        "description": "OpenLDI differential data output D0+; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "43",
        "name": "D0-",
        "type": "output",
        "description": "OpenLDI differential data output D0-; requires external 100-Ω termination for LVDS."
      },
      {
        "number": "44",
        "name": "VDDL12_1",
        "type": "power_in",
        "description": "1.2-V (±5%) supply; requires 10-µF, 1-µF, 0.1-µF and 0.01-µF capacitors to GND at each VDD pin."
      },
      {
        "number": "45",
        "name": "I2C_SCL",
        "type": "bidirectional",
        "description": "I2C clock, open-drain; requires external pullup to VI2C (2.2 kΩ for 1.8 V or 4.7 kΩ for 3.3 V) and must not float."
      },
      {
        "number": "46",
        "name": "I2C_SDA",
        "type": "bidirectional",
        "description": "I2C data, open-drain; requires external pullup to VI2C (2.2 kΩ for 1.8 V or 4.7 kΩ for 3.3 V) and must not float."
      },
      {
        "number": "47",
        "name": "IDx",
        "type": "input",
        "description": "I2C serial control bus device ID address select, set with a voltage divider from a pullup to VDD33 and a pulldown to GND (Table 7-11)."
      },
      {
        "number": "48",
        "name": "PDB",
        "type": "input",
        "description": "Inverted power-down input: HIGH enables the device, LOW powers it down; default weak pulldown above 100 kΩ, and PDB should stay low until supplies reach minimum levels."
      },
      {
        "number": "49",
        "name": "RES0",
        "type": "unconnected",
        "description": "Reserved pin; may be left floating as no connect, or a 0.1-µF decoupling capacitor may be placed to GND."
      },
      {
        "number": "50",
        "name": "MODE_SEL1",
        "type": "input",
        "description": "Mode select 1 strap pin, set with a voltage divider from a pullup to VDD33 and a pulldown to GND (Table 7-9)."
      },
      {
        "number": "51",
        "name": "VDDP12_CH0",
        "type": "power_in",
        "description": "1.2-V (±5%) supply for channel 0; requires 10-µF, 1-µF, 0.1-µF and 0.01-µF capacitors to GND."
      },
      {
        "number": "52",
        "name": "VDDR12_CH0",
        "type": "power_in",
        "description": "1.2-V (±5%) supply for channel 0; requires 10-µF, 1-µF, 0.1-µF and 0.01-µF capacitors to GND."
      },
      {
        "number": "53",
        "name": "RIN0+",
        "type": "bidirectional",
        "description": "FPD-Link III RX port 0 positive pin; must be AC-coupled per Table 8-1, and leave unused pins as no connect with no external pullup or pulldown."
      },
      {
        "number": "54",
        "name": "RIN0-",
        "type": "bidirectional",
        "description": "FPD-Link III RX port 0 negative pin; must be AC-coupled per Table 8-1, and leave unused pins as no connect with no external pullup or pulldown."
      },
      {
        "number": "55",
        "name": "CMF",
        "type": "bidirectional",
        "description": "Common mode filter; connect a 0.1-µF capacitor to GND."
      },
      {
        "number": "56",
        "name": "VDD33_A",
        "type": "power_in",
        "description": "3.3-V (±10%) supply powering the on-chip regulator; requires 10-µF, 1-µF, 0.1-µF and 0.01-µF capacitors to GND."
      },
      {
        "number": "57",
        "name": "VDDR12_CH1",
        "type": "power_in",
        "description": "1.2-V (±5%) supply for channel 1; requires 10-µF, 1-µF, 0.1-µF and 0.01-µF capacitors to GND."
      },
      {
        "number": "58",
        "name": "RIN1+",
        "type": "bidirectional",
        "description": "FPD-Link III RX port 1 positive pin; must be AC-coupled per Table 8-1, and leave unused pins as no connect."
      },
      {
        "number": "59",
        "name": "RIN1-",
        "type": "bidirectional",
        "description": "FPD-Link III RX port 1 negative pin; must be AC-coupled per Table 8-1, and leave unused pins as no connect."
      },
      {
        "number": "60",
        "name": "VDDP12_CH1",
        "type": "power_in",
        "description": "1.2-V (±5%) supply for channel 1; requires 10-µF, 1-µF, 0.1-µF and 0.01-µF capacitors to GND."
      },
      {
        "number": "61",
        "name": "MODE_SEL0",
        "type": "input",
        "description": "Mode select 0 strap pin, set with a voltage divider from a pullup to VDD33 and a pulldown to GND (Table 7-8)."
      },
      {
        "number": "62",
        "name": "CMLOUTP",
        "type": "output",
        "description": "Channel monitor loop-through driver positive output; route to a test point or pad with a 100-Ω termination between CMLOUTP and CMLOUTN."
      },
      {
        "number": "63",
        "name": "CMLOUTN",
        "type": "output",
        "description": "Channel monitor loop-through driver negative output; route to a test point or pad with a 100-Ω termination between CMLOUTP and CMLOUTN."
      },
      {
        "number": "64",
        "name": "RES1",
        "type": "unconnected",
        "description": "Reserved pin; may be left floating as no connect, or a 0.1-µF decoupling capacitor may be placed to GND."
      },
      {
        "number": "65",
        "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: Pinout taken from the NKD 64-pin WQFN pin table (Table 5-1, pages 6-9). The orderable addendum (page"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0666,
        "at": "2026-11-05T21:24:47"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ds90ub948-q1.pdf",
        "pages": 108,
        "sha256": "ebb7858aaf88c0f6",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 65,
        "described": 65,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ds90ub948tnkdtq1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          0.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dce07a86ec3fe3ca87eebdff13827f55e036ced5518fee01f85cec4a3f56366d",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ds90ub948tnkdtq1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          0.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "536c4723de02cbe8413fed4a9242116576d64c2ee615ab44d2317568f3576776",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "WQFN-64-EP(9x9)",
      "Category": "Communication Interface Chip/UART/485/232",
      "Pins": "65"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ebb7858aaf88c0f69036055967bd675664411bc783d3447d25424c45fe1f1757",
      "rows": [
        {
          "name": "Supply voltage VDD33",
          "symbol": "VDD33",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.96,
          "conditions": "Absolute maximum, VDD33_A and VDD33_B",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VDD12",
          "symbol": "VDD12",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 1.44,
          "conditions": "Absolute maximum, VDDL, VDDP12, VDDR12, VDD12_LVDS, VDDP12_LVDS",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "VDDIO supply voltage",
          "symbol": "VDDIO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.96,
          "conditions": "Absolute maximum",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "CML output voltage",
          "symbol": "CMLOUTP, CMLOUTN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 2.75,
          "conditions": "Absolute maximum",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "FPD-Link III input voltage",
          "symbol": "RIN0+, RIN0-, RIN1+, RIN1-",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 2.75,
          "conditions": "Absolute maximum",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Absolute maximum",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "Absolute maximum",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VDD33",
          "symbol": "V(VDD33)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VDD12",
          "symbol": "V(VDD12)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.14,
          "typ": 1.2,
          "max": 1.26,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "LVCMOS I/O supply voltage 3.3 V",
          "symbol": "V(VDDIO)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "V(VDDIO) = 3.3 V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "LVCMOS I/O supply voltage 1.8 V",
          "symbol": "V(VDDIO)",
          "kind": "recommended_operating",
          "unit": "V",
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