at91sam9g45 ATMEL Corporation, at91sam9g45 Datasheet - Page 14

• Manufacturer Part Number: at91sam9g45
• Description: At91 Arm Thumb-based Microcontrollers
• Manufacturer: ATMEL Corporation

5. Power Considerations
5.1
14
Power Supplies
AT91SAM9G45
The AT91SAM9G45 has several types of power supply pins:
Ground pins GND are common to VDDIOM0, VDDIOM1, VDDIOP0, VDDIOP1 and VDDIOP2
power supplies. Separated ground pins are provided for VDDUTMIC, VDDUTMII, VDDBU,
VDDOSC, VDDPLLA, VDDPLLUTMI and VDDANA. These ground pins are respectively
GNDUTMIC, GNDUTMII, GNDBU, GNDOSC, GNDPLLA, GNDPLLUTMI and GNDANA.
• VDDCORE pins: Power the core, including the processor, the embedded memories and the
• VDDIOM0 pins: Power the DDR2/LPDDR I/O lines; voltage ranges between 1.65V and 1.95V
• VDDIOM1 pins: Power the External Bus Interface 1 I/O lines; voltage ranges between 1.65V
• VDDIOP0, VDDIOP1, VDDIOP2 pins: Power the Peripherals I/O lines; voltage ranges from
• VDDBU pin: Powers the Slow Clock oscillator, the internal RC oscillator and a part of the
• VDDPLLUTMI Powers the PLLUTMI cell; voltage range from 0.9V to 1.1V.
• VDDUTMIC pin: Powers the USB device and host UTMI+ core; voltage range from 0.9V to
• VDDUTMII pin: Powers the USB device and host UTMI+ interface; voltage range from 3.0V to
• VDDPLLA pin: Powers the PLLA cell; voltage ranges from 0.9V to 1.1V.
• VDDOSC pin: Powers the Main Oscillator cells; voltage ranges from 1.65V to 3.6V
• VDDANA pin: Powers the Analog to Digital Converter; voltage ranges from 3.0V to 3.6V, 3.3V
peripherals; voltage ranges from 0.9V to 1.1V, 1.0V nominal.
(1.8V typical).
and 1.95V (1.8V typical) or between 3.0V and 3.6V (3.3V nominal).
1.65V to 3.6V.
System Controller; voltage ranges from 1.8V to 3.6V.
1.1V, 1.0V nominal.
3.6V, 3.3V nominal.
nominal.
6438CS–ATARM–13-Oct-09