PCA9545A: Seek for 6/8 channel I2C switch with interrupt function

Andy Liu3

Intellectual 2500 points

Part Number: PCA9545A

Hi team,

My customer wants to find a 6/8 channel I2C switch with interrupt function like PCA9545A 4 channel output.

Do we have these device? Please help me check, and I don't find a proper device at ti.com.

Best regards,

Andy Liu

over 4 years ago

+1 Clemens Ladisch over 4 years ago

Guru 320660 points

There are no large I²C switches with interrupt; probably because that would need too many interrupt pins.

It might be possible to combine two switches, or to use an 8-channel switch and combine the interrupt lines with AND gates (then you would not be able to quickly determine the interrupt source).

0 Andy Liu3 over 4 years ago in reply to Clemens Ladisch

TI__Intellectual 2500 points

Hi Ladisch,

Thanks for your reply, I will recommend customer to combine two switches for this.

Best regards,

Andy Liu

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PCA9545A: Seek for 6/8 channel I2C switch with interrupt function