# TMUX6201RQXR

**Texas Instruments** · Analog Switches, Multiplexers · WSON-8(2x3)

TMUX6201RQXR from Texas Instruments, in a WSON-8(2x3). 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 | S | bidirectional | Source pin supporting bidirectional signal switching between VSS and VDD. |
| 2 | NC | unconnected | No connection. |
| 3 | GND | power_in | Ground (0 V) reference. |
| 4 | VDD | power_in | Positive power supply (most positive potential); requires 0.1 µF to 10 µF decoupling capacitor between VDD and GND. |
| 5 | NC | unconnected | No connection. |
| 6 | SEL | input | Logic control input with internal 4 MΩ pull-down resistor; compatible with 1.8 V to VDD logic levels. |
| 7 | VSS | power_in | Negative power supply (most negative potential); requires 0.1 µF to 10 µF decoupling capacitor between VSS and GND. |
| 8 | D | bidirectional | Drain pin supporting bidirectional signal switching between VSS and VDD. |
| 9 | Thermal Pad | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-8(2x3) |
| Category | Interface |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `TMUX6201RQXR`
- Footprint: `Package_SON:SON-8-1EP_3x2mm_P0.5mm_EP1.4x1.6mm`
- 3D model: WSON-8(2x3), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal QFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `tmux6201rqxr-etched.step` / `tmux6201rqxr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmux6201rqxr.step` / `tmux6201rqxr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603016892336922624) (41 pp, sha256 `3ac25843b02c520a`, retrieved 2026-10-01, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, 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/tmux6201rqxr-datasheet.pdf)