Datasheet

Table Of Contents
Figure 7-3. Power Supply Connection for Switching/Linear Mode
VDDANA
VDDIO
VDDCORE
GND
GNDANA
VSW
(1.71V — 3.63V)
Main Supply
VBAT (PB03)
DEVICE
Figure 7-4. Power Supply Connection for Battery Backup
VDDANA
VDDIO
VDDCORE
GND
GNDANA
VSW
(1.71V — 3.63V)
Main Supply
VBAT (PB03)
DEVICE
7.2.4 Power-Up Sequence
7.2.4.1 Supply Order
VDDIO and VDDANA must have the same supply sequence, and must be connected together.
Note that VDDIO supplies the XOSCn, so VDDIO must be present before the applicaion uses the XOSC
feature. This is also applicable to all digital features present on pins supplied by VDDIO. VDDIOB must
be present before the application uses features present on pins supplied by VDDIOB.
7.2.4.2 Minimum Rise Rate
One integrated power-on reset (POR) circuits monitoring VDDANA requires a minimum rise rate.
7.2.4.3 Maximum Rise Rate
The rise rate of the power supplies must not exceed the values described in Electrical Characteristics.
7.3 Power-Up
This section summarizes the power-up sequence of the SAM D5x/E5x. The behavior after power-up is
controlled by the Power Manager.
Related Links
SAM D5x/E5x Family Data Sheet
Power Supply and Start-Up ...
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 49