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PSoC 6 MCU

SergioUno
New Contributor

Hi, 

I have CY8C6347FMI system and I need to communicate with ICs in both 3.3V and 1.8V domains. Can I do it without level shifters, just by providing diffenet  voltages to two different IO domains?

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RodolfoGL
Employee

Yes, you don't need external level shifters. You can leverage the power domains the PSoC 6 provides. 

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SergioUno
New Contributor

There are several power domains in PSo6, if I for example connect VDDIO1  to an external 1.8V LDO and the other pins will be connected to 3.3V, will I have 1.8V levels on I/O ports P5, P6, P7, P8 and 3.3V on the others? Sorry, I don't have a hardware to check it for now. SergioUno_0-1618177278749.png

 

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RodolfoGL
Employee

Yes, you don't need external level shifters. You can leverage the power domains the PSoC 6 provides. 

View solution in original post

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