on the PSoC 5LP, can VDDIO be above VDDD/VCCC?

[duno_297731]

I looked through the 5LP datasheet and didn't see any such restriction, but I wanted to double check in case I missed something. lets say I'm running my part off of 3.3v, but I want one of my I/O banks to be at 5v, is that acceptable?

[Len_CONSULTRON]

duno,

Look up these links:

GPIO (Vddio) operating at voltage higher than Vddd and Vdda in PSoC3/5

Power Sequence for PSoC® 3 and PSoC 5LP - KBA213235

Design and Programming Checklist for for PSoC® 3/ PSoC 5LP – KBA208166

https://www.cypress.com/documentation/application-notes/an61290-psoc-3-and-psoc-5lp-hardware-design-...

Len

[duno_297731 · Accepted solution]

I found the answer:

"Relative Voltages of VDDA, VDDD, and VDDIO

VDDA must be at the highest voltage present on the PSoC 3 or PSoC 5LP device. All other power supply pins must be less than or equal to VDDA. The VDDD and VDDIO pins may be less than, greater than, or equal to each other."

https://www.cypress.com/file/45381/download