Please kindly refer to this KBA for flash selection:
You can also refer to AN76405 https://www.cypress.com/file/201991/download for the selection of EEPROM and flash.
Hi, thanks so much.
I guess it is not necessary to add both memories on the PCB. I mean, why is it necessary to have two non-volatile memories to store the CX3 image?
Or is it completely necessary to have both in order to get a good behaviour of the CX3?
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Either one of them is applicable. You just need one place to store your firmware.