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PCA9544ARGYR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

PCA9544ARGYR product

PCA9544ARGYR

Specialized

I2C multiplexerSMBus4-channelinterrupt logicVQFN-20400 kHz

PCA9544ARGYR is a 4-channel I2C/SMBus multiplexer for isolating same-address slave devices or dividing bus capacitance. It supports up to 400 kHz I2C operation in a compact 20-pin VQFN package.

Best for

  • Systems with identical I2C slaves sharing an address
  • I2C bus segmentation
  • Applications requiring per-channel interrupt indication

Avoid if

  • Multiple downstream I2C channels must be active simultaneously
  • I2C operation above 400 kHz is required

Check before use

  • External pull-up resistor values and pull-up voltages
  • VCC pass-gate voltage limitations for voltage translation
  • 20-pin RGY VQFN PCB footprint and exposed-pad implementation

Key specifications

I2C channels
4
I2C speed
Up to 400 kHz
Supply voltage
2.3 V to 5.5 V
Package
20-pin RGY VQFN, 4.5 mm × 3.5 mm × 1.0 mm max

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level-2-260C-1 YEAR
ECCN
-
HTSUS
-

Application

I2C address-conflict isolationServer and routing equipmentIndustrial automation

Datasheet

Texas-Instruments-company-64.pdf

800 KB

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CAD Models

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3D Model
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Where to Buy

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

PCA9544ARGYR is the Texas Instruments PCA9544A in the RGY 20-pin VQFN package. It is a 4-channel bidirectional I2C and SMBus multiplexer with interrupt logic.