TXS4558RUKR

{
  "slug": "txs4558rukr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Translators, Level Shifters, WQFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "txs4558rukr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "txs4558rukr.kicad_sym",
    "txs4558rukr.kicad_mod",
    "txs4558rukr.glb",
    "txs4558rukr.step",
    "txs4558rukr.lbr",
    "docs/hero.png",
    "docs/txs4558rukr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "txs4558rukr-hero.glb",
    "txs4558rukr-hero.overlay.json",
    "txs4558rukr-etched.glb"
  ],
  "component": {
    "mpn": "TXS4558RUKR",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-20-EP(3x3)",
    "pin_count": 21,
    "category": "Logic",
    "subcategory": "Translators, Level Shifters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/txs4558",
    "parts": {
      "symbol": "txs4558rukr.kicad_sym",
      "footprint": "txs4558rukr.kicad_mod",
      "model_3d": "txs4558rukr-hero.glb",
      "model_3d_plain": "txs4558rukr-etched.glb",
      "model_3d_step": "txs4558rukr-etched.step",
      "model_3d_step_plain": "txs4558rukr.step",
      "lbr": "txs4558rukr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2876377",
      "digikey": "296-29670-2-ND",
      "mouser": "595-TXS4558RUKR"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T01:54:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-29670-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TXS4558RUKR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VSIM2",
        "type": "power_out",
        "description": "1.8 V/2.95 V SIM2 supply output from the VBATT-fed LDO, enabled by EN2 and set by VSEL2 (1.8 V when low, 2.95 V when high), sourcing up to 50 mA."
      },
      {
        "number": "2",
        "name": "VCC",
        "type": "power_in",
        "description": "1.8-V supply for device operation and the baseband-side I/O buffers, with a recommended operating range of 1.7 V to 3.3 V."
      },
      {
        "number": "3",
        "name": "VBATT",
        "type": "power_in",
        "description": "Battery power supply input for the integrated LDOs, specified at 2.3 V to 5.5 V."
      },
      {
        "number": "4",
        "name": "VSIM1",
        "type": "power_out",
        "description": "1.8 V/2.95 V SIM1 supply output from the VBATT-fed LDO, enabled by EN1 and set by VSEL1 (1.8 V when low, 2.95 V when high), sourcing up to 50 mA."
      },
      {
        "number": "5",
        "name": "SIM1CLK",
        "type": "output",
        "description": "Level-shifted clock output to SIM1 in the VSIM1 domain, driven from CLK when SIM1 is selected or when CLKRUN1 is high."
      },
      {
        "number": "6",
        "name": "SIM1RST",
        "type": "output",
        "description": "Level-shifted reset output to SIM1 in the VSIM1 domain, whose level is latched at the last state when SIM1 is deselected."
      },
      {
        "number": "7",
        "name": "SIM1I/O",
        "type": "bidirectional",
        "description": "Bidirectional level-shifted data line to SIM1 in the VSIM1 domain, becoming high impedance when SIM1 is deselected with CSEL."
      },
      {
        "number": "8",
        "name": "I/O",
        "type": "bidirectional",
        "description": "Baseband-side bidirectional data pin in the VCC domain that connects to SIM1 or SIM2 as selected by CSEL."
      },
      {
        "number": "9",
        "name": "RST",
        "type": "input",
        "description": "Baseband reset input in the VCC domain that is passed to the SIMxRST of the selected card."
      },
      {
        "number": "10",
        "name": "CLK",
        "type": "input",
        "description": "Baseband clock input in the VCC domain that is level-shifted to the SIMxCLK of the selected card, or of either card when its CLKRUNx is high."
      },
      {
        "number": "11",
        "name": "EN1",
        "type": "input",
        "description": "Enable input for the SIM1 interface in the VCC domain that powers VSIM1 and starts the SIM1 activation sequence when driven high."
      },
      {
        "number": "12",
        "name": "VSEL1",
        "type": "input",
        "description": "Input in the VCC domain that selects the LDO1 output voltage, 1.8 V when low and 2.95 V when high."
      },
      {
        "number": "13",
        "name": "CSEL",
        "type": "input",
        "description": "Input in the VCC domain that selects the active card, SIM1 when low and SIM2 when high."
      },
      {
        "number": "14",
        "name": "CLKRUN1",
        "type": "input",
        "description": "Input in the VCC domain that controls SIM1CLK when SIM1 is deselected, keeping the clock running when high and bringing SIM1CLK low when low."
      },
      {
        "number": "15",
        "name": "CLKRUN2",
        "type": "input",
        "description": "Input in the VCC domain that controls SIM2CLK when SIM2 is deselected, keeping the clock running when high and bringing SIM2CLK low when low."
      },
      {
        "number": "16",
        "name": "VSEL2",
        "type": "input",
        "description": "Input in the VCC domain that selects the LDO2 output voltage, 1.8 V when low and 2.95 V when high."
      },
      {
        "number": "17",
        "name": "EN2",
        "type": "input",
        "description": "Enable input for the SIM2 interface in the VCC domain that powers VSIM2 and starts the SIM2 activation sequence when driven high."
      },
      {
        "number": "18",
        "name": "SIM2I/O",
        "type": "bidirectional",
        "description": "Bidirectional level-shifted data line to SIM2 in the VSIM2 domain, becoming high impedance when SIM2 is deselected with CSEL."
      },
      {
        "number": "19",
        "name": "SIM2RST",
        "type": "output",
        "description": "Level-shifted reset output to SIM2 in the VSIM2 domain, whose level is latched at the last state when SIM2 is deselected."
      },
      {
        "number": "20",
        "name": "SIM2CLK",
        "type": "output",
        "description": "Level-shifted clock output to SIM2 in the VSIM2 domain, driven from CLK when SIM2 is selected or when CLKRUN2 is high."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed center thermal pad that must be electrically connected to ground and soldered to the PCB ground plane."
      }
    ],
    "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 labels these pins as type O (output) or I/O. I mapped the VSIM1 and VSIM2 supply pins ; The datasheet gives no pin type for the exposed pad, only that it must be connected to ground. I cla"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0924,
        "at": "2026-10-19T01:54:13"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/txs4558",
        "pages": 19,
        "sha256": "7fb7bc94abc6f554",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "txs4558rukr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0ee4e1082236390795238cd34b082d96efd160d6292c636cc40201a5a30cdc63",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "txs4558rukr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "12da4ae9a59992d603af7ae765c9aa139584bad9e9e3b2b5d9b000983f5df557",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}