Datasheet

18
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
5. Power Considerations
5.1 Power Supplies
The SAM9X25 has several types of power supply pins.
Note: 1. Refer to Table 4-2 for more details.
Table 5-1. SAM9X25 Power Supplies
Name Voltage Range, nominal Powers
Associated
Ground
VDDCORE 0.9–1.1V, 1.0V
ARM core, internal memories, internal peripherals and part of the
system controller.
GNDCORE
VDDIOM
1.65–1.95V, 1.8V
3.0–3.6V, 3.3V
External Memory Interface I/O lines GNDIOM
VDDNF
1.65–1.95V, 1.8V
3.0–3.6V, 3.3V
NAND Flash I/O and control, D16–D31 and multiplexed SMC lines GNDIOM
VDDIOP0 1.65–3.6V Part of Peripheral I/O lines
(1)
GNDIOP
VDDIOP1 1.65–3.6V Part of Peripheral I/O lines
(1)
GNDIOP
VDDBU 1.65–3.6V
Slow Clock oscillator, the internal 32 kHz RC oscillator and backup
part of the System Controller
GNDBU
VDDUTMIC 0.9–1.1V, 1.0V USB transceiver core logic GNDUTMI
VDDUTMII 3.0–3.6V, 3.3V USB transceiver interface GNDUTMI
VDDPLLA 0.9–1.1V, 1.0V PLLA and PLLUTMI cells GNDOSC
VDDOSC 1.65–3.6V Main Oscillator cells GNDOSC
VDDANA 3.0–3.6V, 3.3V Analog-to-Digital Converter GNDANA