In the Application Brief Enabling SPI-Based Flash Memory Expansion by Using Multiplexers in Figure 1, a MUX configuration is shown, where two external controller can be multiplexed to get access to the same SPI Flash device.
However, as of now I could not identify any specific component, which could be used for this Use Case. For example I found this component TS3A27518E-Q1 but based on the typical application shown I would not be sure where the same component could be also used for the use case previously mentioned.
So which would be recommenable components for this use case to be able to access the same SPI Flash with two different external controllers?