TMUX1208

{
  "schema_version": 1,
  "type": "component",
  "slug": "tmux1208",
  "title": "TMUX1208",
  "brief": "TI 8:1 precision analog multiplexer, TSSOP-16. 1.8-5.5 V single or +/-2.75 V dual, low leakage. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "analog-mux",
    "multiplexer",
    "8-channel",
    "tssop-16",
    "texas-instruments"
  ],
  "component": {
    "mpn": "TMUX1208",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "Analog multiplexer",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tmux1208.pdf",
    "parts": {
      "symbol": "tmux1208.kicad_sym",
      "footprint": "tmux1208.kicad_mod",
      "model_3d": "tmux1208-etched.glb",
      "model_3d_plain": "tmux1208.glb",
      "model_3d_step": "tmux1208-etched.step",
      "model_3d_step_plain": "tmux1208.step",
      "lbr": "tmux1208.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "A0",
        "type": "input",
        "description": "Address line 0. Controls the switch configuration (which Sx channel connects to D) per the truth table. 1.8 V logic compatible; VIH ≥ 1.49 V, VIL ≤ 0.87 V at VDD = 5 V."
      },
      {
        "number": "2",
        "name": "EN",
        "type": "input",
        "description": "Active-high enable input. When low, all switches are turned off; when high, the A[2:0] address inputs determine which channel is on. Fail-safe logic tolerates control voltages before VDD is applied."
      },
      {
        "number": "3",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative power supply. Tie to GND for single-supply operation, or to a negative rail for bipolar signal switching."
      },
      {
        "number": "4",
        "name": "S1",
        "type": "bidirectional",
        "description": "Source pin 1. Bidirectional analog/digital switch terminal; can be input or output. Signal range: GND to VDD; RON ≈ 5 Ω typical at VDD = 5 V."
      },
      {
        "number": "5",
        "name": "S2",
        "type": "bidirectional",
        "description": "Source pin 2. Bidirectional analog/digital switch terminal; can be input or output. Signal range: GND to VDD; RON ≈ 5 Ω typical at VDD = 5 V."
      },
      {
        "number": "6",
        "name": "S3",
        "type": "bidirectional",
        "description": "Source pin 3. Bidirectional analog/digital switch terminal; can be input or output. Signal range: GND to VDD; RON ≈ 5 Ω typical at VDD = 5 V."
      },
      {
        "number": "7",
        "name": "S4",
        "type": "bidirectional",
        "description": "Source pin 4. Bidirectional analog/digital switch terminal; can be input or output. Signal range: GND to VDD; RON ≈ 5 Ω typical at VDD = 5 V."
      },
      {
        "number": "8",
        "name": "D",
        "type": "bidirectional",
        "description": "Common drain pin. Bidirectional analog/digital terminal that connects to the selected Sx source per the A[2:0]/EN inputs. Signal range: GND to VDD."
      },
      {
        "number": "9",
        "name": "S8",
        "type": "bidirectional",
        "description": "Source pin 8. Bidirectional analog/digital switch terminal; can be input or output. Signal range: GND to VDD; RON ≈ 5 Ω typical at VDD = 5 V."
      },
      {
        "number": "10",
        "name": "S7",
        "type": "bidirectional",
        "description": "Source pin 7. Bidirectional analog/digital switch terminal; can be input or output. Signal range: GND to VDD; RON ≈ 5 Ω typical at VDD = 5 V."
      },
      {
        "number": "11",
        "name": "S6",
        "type": "bidirectional",
        "description": "Source pin 6. Bidirectional analog/digital switch terminal; can be input or output. Signal range: GND to VDD; RON ≈ 5 Ω typical at VDD = 5 V."
      },
      {
        "number": "12",
        "name": "S5",
        "type": "bidirectional",
        "description": "Source pin 5. Bidirectional analog/digital switch terminal; can be input or output. Signal range: GND to VDD; RON ≈ 5 Ω typical at VDD = 5 V."
      },
      {
        "number": "13",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive power supply, 1.08 V to 5.5 V. Connect a 0.1 µF to 10 µF decoupling capacitor between VDD and GND close to the pin."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for the device."
      },
      {
        "number": "15",
        "name": "A2",
        "type": "input",
        "description": "Address line 2. Controls the switch configuration per the truth table. 1.8 V logic compatible."
      },
      {
        "number": "16",
        "name": "A1",
        "type": "input",
        "description": "Address line 1. Controls the switch configuration per the truth table. 1.8 V logic compatible."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tmux1208.pdf",
        "pages": 37,
        "sha256": "c2683e83f693c8d9",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tmux1208.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tmux1208-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "efe82a810a8c5ffe58b995628021b019b6f767d0da0f4d4c56e2536424095c40",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "8:1 analog multiplexer",
      "Channels": "8 (S1-S8) to 1 (D)",
      "Address": "3-bit (A0-A2) + EN",
      "Supply": "1.8-5.5 V single or +/-2.75 V dual",
      "Leakage": "Low (pA range)",
      "Switching": "Break-before-make",
      "Package": "TSSOP-16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tmux1208",
    "8 to 1 analog mux",
    "precision multiplexer",
    "modern cd4051 replacement"
  ],
  "discovery_pitch": "TI TMUX1208 8:1 precision analog multiplexer (TSSOP-16) 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",
    "tmux1208.kicad_sym",
    "tmux1208.kicad_mod",
    "tmux1208.glb",
    "tmux1208.step",
    "tmux1208.lbr",
    "docs/hero.png",
    "docs/tmux1208-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tmux1208-etched.step"
  ],
  "variants": [
    {
      "mpn": "TMUX1208PWR (TSSOP-16)",
      "kind": "packaging"
    },
    {
      "mpn": "TMUX1208RSVR (UQFN-16)",
      "kind": "packaging"
    }
  ]
}