We need to add a multiplexer for the QSPI Lines on our board. We are looking for something which is automotive grade and can handle 80MHz data rate for QSPI Signals. We need 5 channels (4 IO and 1 Clock). Having 6 would be OK too , we can add CS line as well but if not 5 will work since CS is low speed. Do you have any part that we can use which has low input capacitance and low propagation delay which can handle QSPI Signals? Our QSPI lines are 1.8V .
We have our QSPI lines shared between MCU and EQ4 and we need to add some isolation in between so that when one IC is reading the flash over QSPI, the other IC doesnt interfere with it.
Any suggestions on this would be great.