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Contents

README

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TMUX7219RQXR

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

TMUX7219RQXR 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 D bidirectional Drain pin that can be an input or output; analog and digital signals on D range from VSS to VDD, with absolute limits of VSS-0.5 V to VDD+0.5 V.
2 S1 bidirectional Source pin 1 that can be an input or output; signals range from VSS to VDD, and the path S1 to D is selected through SEL when EN is high.
3 GND power_in Ground (0 V) reference for the device.
4 VDD power_in Most positive power-supply pin; connect a decoupling capacitor of 0.1 µF to 10 µF between VDD and GND for reliable operation.
5 EN input Active-high logic enable with an internal pull-up resistor; when low, all switches are off, and when high, SEL determines which switch is on.
6 SEL input Logic control input with an internal pull-down resistor that selects the switch connection as described in Section 8.5.
7 VSS power_in Most negative power-supply pin; may be tied to ground in single-supply use, with a 0.1 µF to 10 µF decoupling capacitor between VSS and GND for reliable operation.
8 S2 bidirectional Source pin 2 that can be an input or output; signals range from VSS to VDD, and the path S2 to D is selected through SEL when EN is high.
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: TMUX7219RQXR
  • 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: tmux7219rqxr-etched.step / tmux7219rqxr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tmux7219rqxr.step / tmux7219rqxr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (46 pp, sha256 cab403063383a7a7, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (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