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Contents

README

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MUX509IDR

Texas Instruments · Analog Switches, Multiplexers · SOIC-16

MUX509IDR from Texas Instruments, in a SOIC-16. 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 A0 input Address line 0
2 EN input Active high digital input. When this pin is low, all switches are turned off. When this pin is high, the A[1:0] logic inputs determine which pair of switches is turned on.
3 VSS power_in Negative power supply. This pin is the most negative power supply potential. In single-supply applications, this pin can be connected to ground. For reliable operation, connect a decoupling capacitor ranging from 0.1 µF to 10 µF between VSS and GND.
4 S1A bidirectional Source pin 1A. Can be an input or output.
5 S2A bidirectional Source pin 2A. Can be an input or output.
6 S3A bidirectional Source pin 3A. Can be an input or output.
7 S4A bidirectional Source pin 4A. Can be an input or output.
8 DA bidirectional Drain pin A. Can be an input or output.
9 DB bidirectional Drain pin B. Can be an input or output.
10 S4B bidirectional Source pin 4B. Can be an input or output.
11 S3B bidirectional Source pin 3B. Can be an input or output.
12 S2B bidirectional Source pin 2B. Can be an input or output.
13 S1B bidirectional Source pin 1B. Can be an input or output.
14 VDD power_in Positive power supply. This pin is the most positive power supply potential. For reliable operation, connect a decoupling capacitor ranging from 0.1 µF to 10 µF between VDD and GND.
15 GND power_in Ground (0 V) reference
16 A1 input Address line 1

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-16
Category Interface
Pins 16

CAD (KiCad official)

  • Symbol: MUX509IDR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: mux509idr-etched.step / mux509idr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mux509idr.step / mux509idr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (42 pp, sha256 ec27637b7cd07b6a, retrieved 2026-09-27, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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