Hello,
currently I'm looking for an PCA9522 replacement. There is a master slave environment where master and slave controller uses the same controller PCB and Backplane connection. And stacking i2c bus repeater/buffer offten leads to problems if it's done in the wrong way. So I would need a bus buffer working in this configuration propperly:
Master uC -> Port-A-Buffer- Port-B -> Backplane -> PortB-Buffer-Port-A -> Slave uCs
There are 4 to 8 slaves connected to the backplane, so some bus isolation would be highly recomended. And we need the option to disconnect a slave from the bus. Thanks for support!
Best regards
Martin Liese