TCA9554A: I2C Clock Stretching?

Hi Greg,

I think I may be missing something.  Normally clock stretching would occur if a slave device isn't able to process data from a master device fast enough, so it delays SCK transitions accordingly.  This generally isn't an issue for an IO expander like TCA9554A - as long as you keep SCL below the upper limit recommended by the datasheet, the I2C read/write operations will work.  Why would you want clock stretching in this case?  If the concern is how the device might respond if other slaves perform clock stretching, then I can at least confirm that this will have no adverse effect on TCA9554A.

Max