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PCA9546ADR

Public Made by Adom

by adom

Texas Instruments Interface - Specialized, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 17h ago
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pca9546adr-etched.glb pca9546adr: factory component page (tier=mfr) · Ray 17h ago
pca9546adr-etched.step pca9546adr: factory component page (tier=mfr) · Ray 17h ago
pca9546adr-hero.glb pca9546adr: hero GLB from the etched model (keeps the MPN mark) · Ray 17h ago
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README.md Initial commit: component/pca9546adr · Ray 17h ago

PCA9546ADR

Texas Instruments · Interface - Specialized · SOIC-16

PCA9546ADR 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 input 0; connect directly to VCC or ground.
2 A1 input Address input 1; connect directly to VCC or ground.
3 RESET input Active-low reset input that resets the I2C state machine and deselects all channels; connect to VDPUM through a pull-up resistor if not used.
4 SD0 bidirectional Serial data for channel 0; connect to VDPU0 through a pull-up resistor.
5 SC0 bidirectional Serial clock for channel 0; connect to VDPU0 through a pull-up resistor.
6 SD1 bidirectional Serial data for channel 1; connect to VDPU1 through a pull-up resistor.
7 SC1 bidirectional Serial clock for channel 1; connect to VDPU1 through a pull-up resistor.
8 GND power_in Ground.
9 SD2 bidirectional Serial data for channel 2; connect to VDPU2 through a pull-up resistor.
10 SC2 bidirectional Serial clock for channel 2; connect to VDPU2 through a pull-up resistor.
11 SD3 bidirectional Serial data for channel 3; connect to VDPU3 through a pull-up resistor.
12 SC3 bidirectional Serial clock for channel 3; connect to VDPU3 through a pull-up resistor.
13 A2 input Address input 2; connect directly to VCC or ground.
14 SCL bidirectional Serial clock line for the upstream master I2C bus; connect to VDPUM through a pull-up resistor.
15 SDA bidirectional Serial data line for the upstream master I2C bus; connect to VDPUM through a pull-up resistor.
16 VCC power_in Supply power; operating supply range is 2.3 V to 5.5 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: PCA9546ADR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: pca9546adr-etched.step / pca9546adr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pca9546adr.step / pca9546adr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (43 pp, sha256 fd5fad659b8c8ffd, retrieved 2026-10-08, tier: manufacturer)
  • 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