TXS0108E

{
  "schema_version": 1,
  "type": "component",
  "slug": "txs0108e",
  "title": "TXS0108E",
  "brief": "TI 8-bit bidirectional level translator, TSSOP-20. Auto-direction, 1.4-3.6 V / 1.65-5.5 V. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "level-shifter",
    "translator",
    "tssop-20",
    "texas-instruments"
  ],
  "component": {
    "mpn": "TXS0108E",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Interface IC",
    "subcategory": "Bidirectional level translator",
    "datasheet": "https://www.ti.com/lit/ds/symlink/txs0108e.pdf",
    "parts": {
      "symbol": "txs0108e.kicad_sym",
      "footprint": "txs0108e.kicad_mod",
      "model_3d": "txs0108e-etched.glb",
      "model_3d_plain": "txs0108e.glb",
      "lbr": "txs0108e.lbr",
      "model_3d_step": "txs0108e-etched.step",
      "model_3d_step_plain": "txs0108e.step"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "A1",
        "type": "bidirectional",
        "description": "A-port channel 1 I/O, referenced to VCCA. Auto-sensing bidirectional level-shifted data line paired with B1. Requires an external pull-up at each end for open-drain operation; drives push-pull otherwise."
      },
      {
        "number": "2",
        "name": "VCCA",
        "type": "power_in",
        "description": "A-port supply rail. 1.4V ≤ VCCA ≤ 3.6V and VCCA ≤ VCCB. Sets the logic level for the A-side channels and OE input. Bypass locally with 0.1µF."
      },
      {
        "number": "3",
        "name": "A2",
        "type": "bidirectional",
        "description": "A-port channel 2 I/O, referenced to VCCA. Paired with B2 for auto-sensing bidirectional level shifting."
      },
      {
        "number": "4",
        "name": "A3",
        "type": "bidirectional",
        "description": "A-port channel 3 I/O, referenced to VCCA. Paired with B3."
      },
      {
        "number": "5",
        "name": "A4",
        "type": "bidirectional",
        "description": "A-port channel 4 I/O, referenced to VCCA. Paired with B4."
      },
      {
        "number": "6",
        "name": "A5",
        "type": "bidirectional",
        "description": "A-port channel 5 I/O, referenced to VCCA. Paired with B5."
      },
      {
        "number": "7",
        "name": "A6",
        "type": "bidirectional",
        "description": "A-port channel 6 I/O, referenced to VCCA. Paired with B6."
      },
      {
        "number": "8",
        "name": "A7",
        "type": "bidirectional",
        "description": "A-port channel 7 I/O, referenced to VCCA. Paired with B7."
      },
      {
        "number": "9",
        "name": "A8",
        "type": "bidirectional",
        "description": "A-port channel 8 I/O, referenced to VCCA. Paired with B8."
      },
      {
        "number": "10",
        "name": "OE",
        "type": "input",
        "description": "Output-enable. Referenced to VCCA. Drive high to enable translation on all 8 channels; drive low to place every A and B channel in the high-impedance (Hi-Z) state. Tie to GND through a pull-down during power-up/down to keep the device in Hi-Z (VIH ≥ 0.65·VCCA, VIL ≤ 0.35·VCCA)."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground. Connect to the system ground reference."
      },
      {
        "number": "12",
        "name": "B8",
        "type": "bidirectional",
        "description": "B-port channel 8 I/O, referenced to VCCB. Paired with A8."
      },
      {
        "number": "13",
        "name": "B7",
        "type": "bidirectional",
        "description": "B-port channel 7 I/O, referenced to VCCB. Paired with A7."
      },
      {
        "number": "14",
        "name": "B6",
        "type": "bidirectional",
        "description": "B-port channel 6 I/O, referenced to VCCB. Paired with A6."
      },
      {
        "number": "15",
        "name": "B5",
        "type": "bidirectional",
        "description": "B-port channel 5 I/O, referenced to VCCB. Paired with A5."
      },
      {
        "number": "16",
        "name": "B4",
        "type": "bidirectional",
        "description": "B-port channel 4 I/O, referenced to VCCB. Paired with A4."
      },
      {
        "number": "17",
        "name": "B3",
        "type": "bidirectional",
        "description": "B-port channel 3 I/O, referenced to VCCB. Paired with A3."
      },
      {
        "number": "18",
        "name": "B2",
        "type": "bidirectional",
        "description": "B-port channel 2 I/O, referenced to VCCB. Paired with A2."
      },
      {
        "number": "19",
        "name": "VCCB",
        "type": "power_in",
        "description": "B-port supply rail. 1.65V ≤ VCCB ≤ 5.5V and must be ≥ VCCA. Sets the logic level for the B-side channels. Bypass locally with 0.1µF."
      },
      {
        "number": "20",
        "name": "B1",
        "type": "bidirectional",
        "description": "B-port channel 1 I/O, referenced to VCCB. Paired with A1."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/txs0108e.pdf",
        "pages": 45,
        "sha256": "f41f9f58874399bb",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "txs0108e.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "txs0108e-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "42cb6364a05dcbf4f273cf00973167ebde6bd0e90e64d4b80768226a4a20b36b",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "8-bit bidirectional level translator",
      "Direction": "Automatic sensing (no DIR pin)",
      "A-side supply (VCCA)": "1.4-3.6 V",
      "B-side supply (VCCB)": "1.65-5.5 V",
      "Channels": "8",
      "Output enable": "OE pin (Hi-Z)",
      "Package": "TSSOP-20",
      "Body (L×W×H)": "6.5 × 4.4 × 1.2 mm"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "txs0108e",
    "8-bit level shifter",
    "voltage translator",
    "bidirectional level converter"
  ],
  "discovery_pitch": "TI TXS0108E 8-bit bidirectional voltage-level translator (TSSOP-20) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "txs0108e.kicad_sym",
    "txs0108e.kicad_mod",
    "txs0108e.glb",
    "txs0108e.lbr",
    "docs/hero.png",
    "docs/txs0108e-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "txs0108e-etched.step"
  ],
  "variants": [
    {
      "mpn": "TXS0108EPWR (TSSOP-20, tape & reel)",
      "kind": "packaging"
    }
  ]
}