SN74LVC1G125 3-State Buffer

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74lvc1g125",
  "title": "SN74LVC1G125 3-State Buffer",
  "brief": "Single 3-state buffer",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "logic",
    "single-gate",
    "lvc",
    "cmos",
    "ti",
    "sot-23-5"
  ],
  "component": {
    "mpn": "SN74LVC1G125",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Logic",
    "subcategory": "Logic Gate",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74lvc1g125.pdf",
    "parts": {
      "symbol": "sn74lvc1g125.kicad_sym",
      "footprint": "sn74lvc1g125.kicad_mod",
      "model_3d": "sn74lvc1g125-etched.glb",
      "model_3d_plain": "sn74lvc1g125.glb",
      "model_3d_step": "sn74lvc1g125-etched.step",
      "model_3d_step_plain": "sn74lvc1g125.step",
      "lbr": "sn74lvc1g125.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "Active-low output enable. When OE is low, the Y output follows A; when OE is high, Y is placed in a high-impedance (3-state) state. To guarantee Hi-Z during power-up/power-down, pull OE up to VCC through a resistor sized to the driver's sinking capability."
      },
      {
        "number": "2",
        "name": "A",
        "type": "input",
        "description": "Data input to the buffer. Accepts input levels up to 5.5 V independent of VCC (supports voltage down-translation). VIH/VIL thresholds are VCC-dependent per §5.3 Recommended Operating Conditions."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference (0 V). Continuous current through VCC or GND must not exceed ±100 mA."
      },
      {
        "number": "4",
        "name": "Y",
        "type": "tri_state",
        "description": "Buffered 3-state output. Drives ±24 mA at VCC = 3 V and ±32 mA at VCC = 4.5 V. High-impedance when OE is high; also supports Ioff live-insertion and back-drive protection when VCC = 0."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply. Recommended operating range 1.65 V to 5.5 V (data retention 1.5 V min). Bypass with a local ceramic capacitor to GND. ICC max 10 µA (static)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74lvc1g125.pdf",
        "pages": 52,
        "sha256": "65afa3f9d879b37c",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "logic": {
      "family_id": "74LVC1G125",
      "logic_family": "74LVC",
      "function_code": "1G125",
      "function_class": "Buffer",
      "function_name": "1-gate variant of Quad Bus Buffer with 3-State Outputs (125)",
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "sn74lvc1g125.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74lvc1g125-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4bebf568e96321c71c2d328df863475a92a19e122de12fa192bb02fb3e36d072",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Single 3-state buffer",
      "Logic family": "LVC (CMOS)",
      "Supply voltage": "1.65 V to 5.5 V",
      "Input tolerance": "5 V tolerant",
      "Propagation delay": "4.6 ns typ at 3.3 V",
      "Operating temperature": "-40 C to 125 C"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "single gate",
    "one-gate logic",
    "glue logic",
    "board-edge logic"
  ],
  "discovery_pitch": "One non-inverting 3-state buffer in a 5-pin package to drive or isolate a single line.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
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    "sn74lvc1g125.step",
    "sn74lvc1g125.lbr",
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    "viewers/symbol.html",
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  "variants": [
    {
      "mpn": "SN74LVC1G125DBV",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DBVR",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DBVT",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DCK",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DCKR",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DCKT",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DRL",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DRLR",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DRY",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DRYR",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DSF",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DSFR",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DPW",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125DPWR",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125YZP",
      "kind": "unknown"
    },
    {
      "mpn": "SN74LVC1G125YZPR",
      "kind": "unknown"
    }
  ]
}