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TCA9554A: What's difference between TCA9554A and TCA9534A?

Part Number: TCA9554A
Other Parts Discussed in Thread: TCA9534A

Hi team,

My customer would like to know what's different between TCA9554A and TCA9534A?

From simple comparison table, I can't judge their difference, so please advise.


  • Paul,

    Thanks for reaching out! Per the TCA9554A data sheet, you will find the line:

    "The TCA9554A is identical to the TCA9534A except for the addition of the internal I/O pull-up resistors, which keeps P-ports from floating when configured as inputs."

    Please let me know if I can help clarify further!