7 Power Supplies and Startup Considerations

Table 7-1. External Power Supply Pins
NameAssociated GroundPowers
AVDDAVSSSupplies power to the pSWITCH (in the DS SMOR), SMOR, ADCCOREn, ACDACn, OPAMPCOREn, ACCOREn, PLL0, PLL1, XOSC, DFLL48M and analog I/Os.

(Nominal range: 1.71V - 3.63V, must be within 300mv of VDDIO.)

VDDIOVSSIOPowers I/Os.

(Nominal range: 1.71 V - 3.63V, wrt VSSIO.)

VDDREGVSSCOREPowers all internal regulators except for the LPVREGC.

(Nominal range: 1.71V - 3.63V, cannot exceed VDDIO).

VDDFVSSFSupplies power to the Flash panel.

This pin can be tied to VDDIO outside of the device (on-board).

(Nominal range: 1.71V - 3.63V, cannot exceed VDDIO).