LMK00334RTVR

{
  "schema_version": 1,
  "type": "component",
  "slug": "lmk00334rtvr",
  "title": "LMK00334RTVR",
  "brief": "Texas Instruments Clock Buffers, Drivers, Distributors, WQFN-32-EP(5x5). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "clock-timing",
    "lmk00334rtvr"
  ],
  "component": {
    "mpn": "LMK00334RTVR",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-32-EP(5x5)",
    "pin_count": 33,
    "category": "Clock/Timing",
    "subcategory": "Clock Buffers, Drivers, Distributors",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lmk00334",
    "parts": {
      "symbol": "lmk00334rtvr.kicad_sym",
      "footprint": "lmk00334rtvr.kicad_mod",
      "model_3d": "lmk00334rtvr-etched.glb",
      "model_3d_plain": "lmk00334rtvr.glb",
      "model_3d_step": "lmk00334rtvr-etched.step",
      "model_3d_step_plain": "lmk00334rtvr.step",
      "lbr": "lmk00334rtvr.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return."
      },
      {
        "number": "2",
        "name": "VCCOA",
        "type": "power_in",
        "description": "Output supply for Bank A output buffers. 3.3 V or 2.5 V. Pin 2 and pin 5 are internally connected; bypass with 0.1 µF low-ESR capacitor near each pin."
      },
      {
        "number": "3",
        "name": "CLKoutA0",
        "type": "output",
        "description": "Differential clock output A0 (true). HCSL or Hi-Z."
      },
      {
        "number": "4",
        "name": "CLKoutA0*",
        "type": "output",
        "description": "Differential clock output A0 (complement). HCSL or Hi-Z."
      },
      {
        "number": "5",
        "name": "VCCOA",
        "type": "power_in",
        "description": "Output supply for Bank A output buffers. 3.3 V or 2.5 V. Internally tied to pin 2; bypass with 0.1 µF near pin."
      },
      {
        "number": "6",
        "name": "CLKoutA1",
        "type": "output",
        "description": "Differential clock output A1 (true). HCSL or Hi-Z."
      },
      {
        "number": "7",
        "name": "CLKoutA1*",
        "type": "output",
        "description": "Differential clock output A1 (complement). HCSL or Hi-Z."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return."
      },
      {
        "number": "9",
        "name": "CLKout_EN",
        "type": "input",
        "description": "Bank A and Bank B output enable, active-high. CMOS control input with internal pulldown."
      },
      {
        "number": "10",
        "name": "VCC",
        "type": "power_in",
        "description": "Core and input buffer supply. 3.3 V. Bypass each VCC pin with a 0.1 µF low-ESR capacitor."
      },
      {
        "number": "11",
        "name": "OSCin",
        "type": "input",
        "description": "Crystal input; may also be driven by an XO/TCXO or other external single-ended clock."
      },
      {
        "number": "12",
        "name": "OSCout",
        "type": "output",
        "description": "Crystal output. If OSCin is driven by a single-ended clock, OSCout should be left floating."
      },
      {
        "number": "13",
        "name": "CLKin_SEL0",
        "type": "input",
        "description": "Clock input MUX select 0. CMOS control input with internal pulldown."
      },
      {
        "number": "14",
        "name": "CLKin0",
        "type": "input",
        "description": "Universal clock input 0, true (differential or single-ended)."
      },
      {
        "number": "15",
        "name": "CLKin0*",
        "type": "input",
        "description": "Universal clock input 0, complement (differential or single-ended)."
      },
      {
        "number": "16",
        "name": "CLKin_SEL1",
        "type": "input",
        "description": "Clock input MUX select 1. CMOS control input with internal pulldown."
      },
      {
        "number": "17",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return."
      },
      {
        "number": "18",
        "name": "CLKoutB1*",
        "type": "output",
        "description": "Differential clock output B1 (complement). HCSL or Hi-Z."
      },
      {
        "number": "19",
        "name": "CLKoutB1",
        "type": "output",
        "description": "Differential clock output B1 (true). HCSL or Hi-Z."
      },
      {
        "number": "20",
        "name": "VCCOB",
        "type": "power_in",
        "description": "Output supply for Bank B output buffers. 3.3 V or 2.5 V. Pin 20 and pin 23 are internally tied; bypass with 0.1 µF near each pin."
      },
      {
        "number": "21",
        "name": "CLKoutB0*",
        "type": "output",
        "description": "Differential clock output B0 (complement). HCSL or Hi-Z."
      },
      {
        "number": "22",
        "name": "CLKoutB0",
        "type": "output",
        "description": "Differential clock output B0 (true). HCSL or Hi-Z."
      },
      {
        "number": "23",
        "name": "VCCOB",
        "type": "power_in",
        "description": "Output supply for Bank B output buffers. 3.3 V or 2.5 V. Internally tied to pin 20; bypass with 0.1 µF near pin."
      },
      {
        "number": "24",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return."
      },
      {
        "number": "25",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. May be left floating, tied to GND, or tied to any potential within the Absolute Maximum supply range."
      },
      {
        "number": "26",
        "name": "CLKin1*",
        "type": "input",
        "description": "Universal clock input 1, complement (differential or single-ended)."
      },
      {
        "number": "27",
        "name": "CLKin1",
        "type": "input",
        "description": "Universal clock input 1, true (differential or single-ended)."
      },
      {
        "number": "28",
        "name": "VCC",
        "type": "power_in",
        "description": "Core and input buffer supply. 3.3 V. Bypass with 0.1 µF low-ESR capacitor near pin."
      },
      {
        "number": "29",
        "name": "REFout",
        "type": "output",
        "description": "LVCMOS reference output. Enabled by driving REFout_EN high."
      },
      {
        "number": "30",
        "name": "VCCOC",
        "type": "power_in",
        "description": "Supply for the REFout buffer. 3.3 V or 2.5 V. Bypass with 0.1 µF low-ESR capacitor near pin."
      },
      {
        "number": "31",
        "name": "REFout_EN",
        "type": "input",
        "description": "REFout enable, active-high. Also synchronizes REFout with the selected clock input internally. CMOS input with internal pulldown."
      },
      {
        "number": "32",
        "name": "VCC",
        "type": "power_in",
        "description": "Core and input buffer supply. 3.3 V. Bypass with 0.1 µF low-ESR capacitor near pin."
      },
      {
        "number": "DAP",
        "name": "DAP",
        "type": "power_in",
        "description": "Die attach pad. Must be soldered to the PCB ground plane for thermal dissipation."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lmk00334",
        "pages": 35,
        "sha256": "0fea59e58d9782db",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lmk00334rtvr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lmk00334rtvr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ef50f4095bbfcdfdd1d2e530c647a3384d8df92473f6604e52d8276b32053b84",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "WQFN-32-EP(5x5)",
      "Category": "Clock/Timing",
      "Pins": "33"
    }
  },
  "variants": [
    {
      "mpn": "LMK00334RTVR",
      "kind": "packaging"
    },
    {
      "mpn": "LMK00334RTVRRTVT",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lmk00334rtvr"
  ],
  "discovery_pitch": "LMK00334RTVR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lmk00334rtvr.kicad_sym",
    "lmk00334rtvr.kicad_mod",
    "lmk00334rtvr.glb",
    "lmk00334rtvr.step",
    "lmk00334rtvr.lbr",
    "docs/hero.png",
    "docs/lmk00334rtvr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-28T17:18:44.347Z"
}