7.2 Power Domain Constraints

The PIC32CZ CA power domains are not independent of each other:

• VDDCORE, VDDIO and VDDREG share GND, whereas AVDD has its own ground, AVSS.
• AVDD and VDDIO must share the main supply, VDD.
• VDD_BU, VDDREG, VDDCORE_PLL, VDDCORE_BU, VDDCORE_RAM, VDDCORE_SW, AVDD, VDDIO, VDDCORE_USB0, VDDCORE_USB1, VDDUSB0, VDDUSB1, and VDDFLASH are internal power domains.

The maximum rise rates of the different power supplies must not exceed the values described in the Power Supply Characteristics section of the Electrical Characteristics chapter.