Datasheet

SAM9263 [DATASHEET]
Atmel-6249N-ATARM-SAM9263-Datasheet_14-Mar-16
14
4. Power Considerations
4.1 Power Supplies
The SAM9263 device has several types of power supply pins. Some supply pins share common ground (GND)
pins whereas others have separate grounds. See Table 4-1.
Note: 1. Desired voltage range selectable by software
The power supplies VDDIOM0, VDDIOM1 and VDDIOP0, VDDIOP1 are identified in the pinout table and the
multiplexing tables. These supplies enable the user to power the device differently for interfacing with memories
and for interfacing with peripherals.
4.2 Power Sequence Requirements
The SAM9260 board design must comply with the guidelines described in Section 4.2.1 “Power-up Sequence” and
Section 4.2.2 “Power-down Sequence” to guarantee reliable operation of the device. Any deviation from these
sequences may lead to preventing the device from booting.
Table 4-1. SAM9263 Power Supply Pins
Pin(s) Item(s) powered Range Typical Ground
VDDCORE
Core, including the processor
Embedded memories
Peripherals
1.08–1.32 V 1.2V
GND
VDDIOM0 External Bus Interface 0 I/O lines
1.65–1.95 V
(1)
1.8V
3.0–3.6 V
(1)
3.3V
VDDIOM1 External Bus Interface 1 I/O lines
1.65–1.95 V
(1)
1.8V
3.0–3.6 V
(1)
3.3V
VDDIOP0
Peripheral I/O lines
USB transceivers
2.7–3.6 V 3.3V
VDDIOP1 Peripherals I/O lines involving the Image Sensor Interface 1.65–3.6 V
1.8V
2.5V
3.0V
3.3V
VDDOSC Main oscillator 3.0–3.6 V 3.3V
VDDBU
Slow Clock oscillator
Part of the System Controller
1.08–1.32 V 1.2V GNDBU
VDDPLL PLL cells 3.0–3.6 V 3.3V GNDPLL