5. Power Considerations
5.1 Power Supplies
The SAM9G25 has several types of power supply pins.
Table 5-1. SAM9G25 Power Supplies
Name
Voltage Range, nominal
VDDCORE
0.9-1.1V, 1.0V
VDDIOM
VDDNF
VDDIOP0
VDDIOP1
1.65-1.95V, 1.8V
3.0-3.6V, 3.3V
1.65-1.95V, 1.8V
3.0-3.6V, 3.3V
1.65-3.6V
1.65-3.6V
VDDBU
1.65-3.6V
VDDUTMIC
0.9-1.1V, 1.0V
VDDUTMII
3.0-3.6V, 3.3V
VDDPLLA
0.9-1.1V, 1.0V
VDDOSC
1.65-3.6V
VDDANA
3.0-3.6V, 3.3V
Note: 1. Refer to Table 4-2 for more details.
Powers
ARM core, internal memories, internal peripherals and
part of the system controller.
Associated
Ground
GNDCORE
External Memory Interface I/O lines
GNDIOM
NAND Flash I/O and control, D16-D32 and multiplexed
SMC lines
A part of Peripheral I/O lines(1)
A part of Peripheral I/O lines (1)
The Slow Clock oscillator, the internal 32 kHz RC
oscillator and backup part of the System Controller
The USB transceiver core logic
The USB transceiver interface
The PLLA and PLLUTMI cells
The Main Oscillator cells
The Analog to Digital Converter
GNDIOM
GNDIOP
GNDIOP
GNDBU
GNDUTMI
GNDUTMI
GNDOSC
GNDOSC
GNDANA
SAM9G25 [DATASHEET] 26
11032C–ATARM–25-Jan-13