8.4 Power Configurations

Two different configurations, depending on customer use, are available.
  • Single supply—The SAMA7G54 SOM Series can be supplied by only one input supply (for example, a 5V AC/DC wall adapter), and other input supplies can be connected to the internal 3.3V regulator VDD_3V3. All the PIO lines are supplied at 3.3V.
  • Multiple supplies—The SAMA7G54 SOM Series can be supplied by a 5V supply and a backup battery. Some PIO lines, such as VDDQSPI0, VDDIOP0, VDDSDMMC0 and VDDSDMMC1, are supplied by different LDOs for specific applications.
Figure 8-4. SAMA7G54 SOM Series Single Supply Connection Example
Figure 8-5. SAMA7G54 SOM Series Multiple Supplies Connection Example