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Per the datasheet for the S25FL128S/S25FL256S family of devices, it appears that using a VIO of 3.3V results in better performance (higher throughput) than using a VIO of 1.8V. This sounds counterintuitive but I wanted to make sure this was correct before committing to a specific implementation in my design. Is there some internal circuitry that operations more effectively on 3.3V allowing the higher throughput (i.e. PLLs)?
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Hello,
Thank you for contacting Cypress Community Forum. If your requirement is for better performance then use Same Core and I/O Voltage (VIO = VCC = 2.7V to 3.6V). For better power consumption use Lower I/O Voltage (VIO = 1.65V to 2.7V, VCC = 2.7V to 3.6V)
Have a wonderful day
Regards,
Bushra