SN74CB3T16211DLR

{
  "slug": "sn74cb3t16211dlr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Analog Switches, Multiplexers, SSOP-56-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "sn74cb3t16211dlr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74cb3t16211dlr.kicad_sym",
    "sn74cb3t16211dlr.kicad_mod",
    "sn74cb3t16211dlr.glb",
    "sn74cb3t16211dlr.step",
    "sn74cb3t16211dlr.lbr",
    "docs/hero.png",
    "docs/sn74cb3t16211dlr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74cb3t16211dlr-hero.glb",
    "sn74cb3t16211dlr-hero.overlay.json"
  ],
  "component": {
    "mpn": "SN74CB3T16211DLR",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-56-300mil",
    "pin_count": 56,
    "category": "Interface",
    "subcategory": "Analog Switches, Multiplexers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74cb3t16211",
    "parts": {
      "symbol": "sn74cb3t16211dlr.kicad_sym",
      "footprint": "sn74cb3t16211dlr.kicad_mod",
      "model_3d": "sn74cb3t16211dlr-hero.glb",
      "model_3d_plain": "sn74cb3t16211dlr.glb",
      "model_3d_step": "sn74cb3t16211dlr-etched.step",
      "model_3d_step_plain": "sn74cb3t16211dlr.step",
      "lbr": "sn74cb3t16211dlr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2863938",
      "digikey": "296-19149-2-ND",
      "mouser": "595-SN74CB3T16211DLR"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T02:30:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-19149-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74CB3T16211DLR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "2",
        "name": "1A1",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 1, connected to 1B1 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "3",
        "name": "1A2",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 2, connected to 1B2 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "4",
        "name": "1A3",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 3, connected to 1B3 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "5",
        "name": "1A4",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 4, connected to 1B4 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "6",
        "name": "1A5",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 5, connected to 1B5 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "7",
        "name": "1A6",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 6, connected to 1B6 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "9",
        "name": "1A7",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 7, connected to 1B7 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "10",
        "name": "1A8",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 8, connected to 1B8 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "11",
        "name": "1A9",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 9, connected to 1B9 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "12",
        "name": "1A10",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 10, connected to 1B10 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "13",
        "name": "1A11",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 11, connected to 1B11 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "14",
        "name": "1A12",
        "type": "bidirectional",
        "description": "Bus 1 A-port data I/O 12, connected to 1B12 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "15",
        "name": "2A1",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 1, connected to 2B1 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "16",
        "name": "2A2",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 2, connected to 2B2 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "17",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 2.3 V to 3.6 V operating range."
      },
      {
        "number": "18",
        "name": "2A3",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 3, connected to 2B3 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "19",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "20",
        "name": "2A4",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 4, connected to 2B4 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "21",
        "name": "2A5",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 5, connected to 2B5 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "22",
        "name": "2A6",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 6, connected to 2B6 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "23",
        "name": "2A7",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 7, connected to 2B7 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "24",
        "name": "2A8",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 8, connected to 2B8 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "25",
        "name": "2A9",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 9, connected to 2B9 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "26",
        "name": "2A10",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 10, connected to 2B10 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "27",
        "name": "2A11",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 11, connected to 2B11 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "28",
        "name": "2A12",
        "type": "bidirectional",
        "description": "Bus 2 A-port data I/O 12, connected to 2B12 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "29",
        "name": "2B12",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 12, connected to 2A12 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "30",
        "name": "2B11",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 11, connected to 2A11 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "31",
        "name": "2B10",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 10, connected to 2A10 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "32",
        "name": "2B9",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 9, connected to 2A9 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "33",
        "name": "2B8",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 8, connected to 2A8 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "34",
        "name": "2B7",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 7, connected to 2A7 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "35",
        "name": "2B6",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 6, connected to 2A6 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "36",
        "name": "2B5",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 5, connected to 2A5 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "37",
        "name": "2B4",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 4, connected to 2A4 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "38",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "39",
        "name": "2B3",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 3, connected to 2A3 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "40",
        "name": "2B2",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 2, connected to 2A2 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "41",
        "name": "2B1",
        "type": "bidirectional",
        "description": "Bus 2 B-port data I/O 1, connected to 2A1 when 2OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "42",
        "name": "1B12",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 12, connected to 1A12 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "43",
        "name": "1B11",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 11, connected to 1A11 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "44",
        "name": "1B10",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 10, connected to 1A10 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "45",
        "name": "1B9",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 9, connected to 1A9 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "46",
        "name": "1B8",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 8, connected to 1A8 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "47",
        "name": "1B7",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 7, connected to 1A7 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "48",
        "name": "1B6",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 6, connected to 1A6 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "49",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "50",
        "name": "1B5",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 5, connected to 1A5 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "51",
        "name": "1B4",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 4, connected to 1A4 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "52",
        "name": "1B3",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 3, connected to 1A3 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "53",
        "name": "1B2",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 2, connected to 1A2 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "54",
        "name": "1B1",
        "type": "bidirectional",
        "description": "Bus 1 B-port data I/O 1, connected to 1A1 when 1OE is low; supports 0 to 5.5 V signaling."
      },
      {
        "number": "55",
        "name": "2OE",
        "type": "input",
        "description": "Output enable for the second 12-bit bus switch; low turns it ON, high gives high-impedance between A and B (VIH 2 V to 5.5 V at VCC 2.7-3.6 V)."
      },
      {
        "number": "56",
        "name": "1OE",
        "type": "input",
        "description": "Output enable for the first 12-bit bus switch; low turns it ON, high gives high-impedance between A and B (VIH 2 V to 5.5 V at VCC 2.7-3.6 V)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 22,
        "cost_usd": 0.2178,
        "at": "2026-10-07T02:30:05"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74cb3t16211",
        "pages": 22,
        "sha256": "00303f785fd29976",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 56,
        "described": 56,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sn74cb3t16211dlr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.35,
          18.5,
          2.99
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "496b138c9bddb6111fccc97928b5e654846ac39b68862745293b24c720d158e5",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74cb3t16211dlr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.35,
          18.5,
          2.99
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2becf89ac0fbf2a787e8fb4c68f465ca1369c25d2ce0477f6aae3df5eb8c25fb",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}