SN74CBT3125CDR

{
  "slug": "sn74cbt3125cdr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74cbt3125cdr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74cbt3125cdr.kicad_sym",
    "sn74cbt3125cdr.kicad_mod",
    "sn74cbt3125cdr.glb",
    "sn74cbt3125cdr.step",
    "sn74cbt3125cdr.lbr",
    "docs/hero.png",
    "docs/sn74cbt3125cdr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74cbt3125cdr-hero.glb",
    "sn74cbt3125cdr-hero.overlay.json",
    "sn74cbt3125cdr-etched.glb"
  ],
  "component": {
    "mpn": "SN74CBT3125CDR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74cbt3125c.pdf",
    "parts": {
      "symbol": "sn74cbt3125cdr.kicad_sym",
      "footprint": "sn74cbt3125cdr.kicad_mod",
      "model_3d": "sn74cbt3125cdr-hero.glb",
      "model_3d_plain": "sn74cbt3125cdr-etched.glb",
      "model_3d_step": "sn74cbt3125cdr-etched.step",
      "model_3d_step_plain": "sn74cbt3125cdr.step",
      "lbr": "sn74cbt3125cdr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2674671",
      "mouser": "595-SN74CBT3125CDR"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T17:56:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": "595-SN74CBT3125CDR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Active-low output enable for bus switch 1; the 1A-1B switch is ON when low and OFF (high-impedance) when high, and OE should be tied to VCC through a pullup resistor to keep the switch OFF during power up or power down."
      },
      {
        "number": "2",
        "name": "1A",
        "type": "bidirectional",
        "description": "A port of bus switch 1, connected to 1B when 1OE is low; undershoot protection clamps the port to −2 V minimum while the switch is OFF."
      },
      {
        "number": "3",
        "name": "1B",
        "type": "bidirectional",
        "description": "B port of bus switch 1, with typical ON-state resistance of 3 Ω and Ioff support for partial-power-down operation."
      },
      {
        "number": "4",
        "name": "2OE",
        "type": "input",
        "description": "Active-low output enable for bus switch 2; the 2A-2B switch is ON when low and OFF (high-impedance) when high."
      },
      {
        "number": "5",
        "name": "2A",
        "type": "bidirectional",
        "description": "A port of bus switch 2, connected to 2B when 2OE is low; undershoot protection clamps the port to −2 V minimum while the switch is OFF."
      },
      {
        "number": "6",
        "name": "2B",
        "type": "bidirectional",
        "description": "B port of bus switch 2, with typical ON-state resistance of 3 Ω and Ioff support for partial-power-down operation."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for all voltages; continuous current through the GND terminal is limited to ±100 mA."
      },
      {
        "number": "8",
        "name": "3B",
        "type": "bidirectional",
        "description": "B port of bus switch 3, with typical ON-state resistance of 3 Ω and Ioff support for partial-power-down operation."
      },
      {
        "number": "9",
        "name": "3A",
        "type": "bidirectional",
        "description": "A port of bus switch 3, connected to 3B when 3OE is low; undershoot protection clamps the port to −2 V minimum while the switch is OFF."
      },
      {
        "number": "10",
        "name": "3OE",
        "type": "input",
        "description": "Active-low output enable for bus switch 3; the 3A-3B switch is ON when low and OFF (high-impedance) when high."
      },
      {
        "number": "11",
        "name": "4B",
        "type": "bidirectional",
        "description": "B port of bus switch 4, with typical ON-state resistance of 3 Ω and Ioff support for partial-power-down operation."
      },
      {
        "number": "12",
        "name": "4A",
        "type": "bidirectional",
        "description": "A port of bus switch 4, connected to 4B when 4OE is low; undershoot protection clamps the port to −2 V minimum while the switch is OFF."
      },
      {
        "number": "13",
        "name": "4OE",
        "type": "input",
        "description": "Active-low output enable for bus switch 4; the 4A-4B switch is ON when low and OFF (high-impedance) when high."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended operating range 4 V to 5.5 V (absolute maximum −0.5 V to 7 V), with continuous current through the VCC terminal limited to ±100 mA."
      }
    ],
    "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 top-view drawing text for the shared D/DB/DGV/PW 14-pin outline was scrambled in extraction. The; Pin type for the A/B switch ports is set to bidirectional because data flows both ways through the s"
        ],
        "pages_sent": 25,
        "cost_usd": 0.0882,
        "at": "2026-10-17T17:54:10"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74cbt3125c.pdf",
        "pages": 25,
        "sha256": "898af39109b7c77d",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sn74cbt3125cdr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74cbt3125cdr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d24ceacd9ce0bc4bb28c6d9a84e6e323b1f4270457b901dace3875cc5c212c04",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}