6.2.1 Power Supplies PIC32CM MC

The PIC32CM MC has the following power supply pins:

  • VDDIO: Powers I/O lines and XOSC
  • VDDIN: Powers I/O lines and the OSC48M, TOSC and internal regulator
  • VDDANA: Powers I/O lines and the ADC, AC, DAC, OSCULP32K, OSC32K, and XOSC32K
  • VDDCORE: Internal regulated voltage output. Powers the core, memories, peripherals, and FDPLL96M

The same voltage must be applied to both the VDDIN and VDDANA pins. This common voltage is referred to as VDD in the data sheet. VDDIO must always be less than or equal to VDDIN.

The ground pins, GND, are common to VDDCORE, VDDIO and VDDIN. The ground pin for VDDANA is GNDANA.

For decoupling recommendations for the different power supplies, refer to the 43 Electrical Characteristics 85℃.