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Linux/TCA6424A: Too many interrupts in INT pin using TCA6424A

Part Number: TCA6424A
Other Parts Discussed in Thread: TCA6424

Tool/software: Linux

Hi everyone,

I'm using the TCA6424 IO Expander on Linux platform and everything is working fine but the INT pin generates too many interrupts. It's known that the INT interrupt has to change when any input change. I'm using a switch to generate changes in my PCB but I usually get this type of waveform:

So my Linux platform gets 5 interrupts, Is there anyway to avoid this issue? Is it normal that the PCA9454A works in this way?

Best regards.