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Unlike CCG3, the CCG3PA doesn't have an assigned pin to supply VDDIO. I can only find one instance of "VDDIO" in the CCG3PA datasheet and it didn't specify. My questions are:
1. What determines or what is the VDDIO voltage? My input power comes from either VBUS_IN=20V or VDDD=5V.
2. For my GPIOs configured as outputs, is the high-level voltage same as VDDIO? If not, what is it?
Thanks,
Jonathan
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Hi Jonathan,
1) The VDDIO supply is internally connected to VDDD. Thus if your input power is VDDD = 5V, VDDIO = 5V. If your input power is VBUS_IN, VDDIO = 3.3V; See page 6 of CCG3PA datasheet.
2) Yes, GPIO output high state will be at voltage level of VDDIO.
Regards,
Rajath
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Hi Jonathan,
1) The VDDIO supply is internally connected to VDDD. Thus if your input power is VDDD = 5V, VDDIO = 5V. If your input power is VBUS_IN, VDDIO = 3.3V; See page 6 of CCG3PA datasheet.
2) Yes, GPIO output high state will be at voltage level of VDDIO.
Regards,
Rajath