# TMUX6112RTER

**Texas Instruments** · Analog Switches, Multiplexers · WQFN-16-EP(3x3)

TMUX6112RTER from Texas Instruments, in a WQFN-16-EP(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | S1 | bidirectional | Source pin 1, bidirectional analog switch terminal with voltage range VSS to VDD |
| 2 | VSS | power_in | Negative power supply for dual supply (±5V to ±17V) or reference for single supply; requires 0.1µF to 10µF decoupling capacitor between VSS and GND |
| 3 | GND | power_in | Ground reference at 0V potential |
| 4 | S4 | bidirectional | Source pin 4, bidirectional analog switch terminal with voltage range VSS to VDD |
| 5 | D4 | bidirectional | Drain pin 4, bidirectional analog switch terminal with voltage range VSS to VDD |
| 6 | SEL4 | input | Logic control input 4 with TTL-compatible threshold (VIL 0.8V, VIH 2V) |
| 7 | SEL3 | input | Logic control input 3 with TTL-compatible threshold (VIL 0.8V, VIH 2V) |
| 8 | D3 | bidirectional | Drain pin 3, bidirectional analog switch terminal with voltage range VSS to VDD |
| 9 | S3 | bidirectional | Source pin 3, bidirectional analog switch terminal with voltage range VSS to VDD |
| 10 | NC | unconnected | No internal connection |
| 11 | VDD | power_in | Positive power supply for dual supply (±5V to ±17V) or single supply (10V to 17V); requires 0.1µF to 10µF decoupling capacitor between VDD and GND |
| 12 | S2 | bidirectional | Source pin 2, bidirectional analog switch terminal with voltage range VSS to VDD |
| 13 | D2 | bidirectional | Drain pin 2, bidirectional analog switch terminal with voltage range VSS to VDD |
| 14 | SEL2 | input | Logic control input 2 with TTL-compatible threshold (VIL 0.8V, VIH 2V) |
| 15 | SEL1 | input | Logic control input 1 with TTL-compatible threshold (VIL 0.8V, VIH 2V) |
| 16 | D1 | bidirectional | Drain pin 1, bidirectional analog switch terminal with voltage range VSS to VDD |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-16-EP(3x3) |
| Category | Interface |
| Pins | 17 |

## CAD (KiCad official)

- Symbol: `TMUX6112RTER`
- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`
- 3D model: WQFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files: `tmux6112rter-etched.step` / `tmux6112rter-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmux6112rter.step` / `tmux6112rter.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tmux6112) (36 pp, sha256 `b99dfe5e24b63a1b`, retrieved 2026-10-01, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/tmux6112rter-datasheet.pdf)