7 Power Supplies and Startup Considerations
| Name | Associated Ground | Powers |
|---|---|---|
| VDDREG | GND | Voltage regulators for RAM, PLL, Core,
Peripherals, USB Ports (Nominal range: 1.71V-3.63V, Recommended: 3.3V) |
| VDDIO | GND | I/O Lines, XOSC, DFLL48 Flash Panels (by
double bonds to VDD Flash pins) Charge Pumps for ADC, AC, and PTC (Nominal range: 1.71V-3.63V, Recommended: 3.3 V) |
| AVDD | AVSS | Analog Peripherals ADC, AC, and PTC POR and
BORs, BGAP (Band Gap Voltage Reference) Backup Power Domain (XOSC32K, FRC32K) VDDCORE Backup Power Domain (RTC, OSC32KCTRL, TRAM, SUPC, PM, RSTC, HSM RTC, and Tamper) (Nominal range: 1.71V-3.63 V, Recommended: 3.3 V) |