Datasheet

1159
SAM9G45 [DATASHEET]
Atmel-6438O-ATARM-SAM9G45-Datasheet_08-Dec-15
45.3 Power Consumption
 Typical power consumption of PLLs, Slow Clock and Main Oscillator
 Power consumption of power supply in four different modes: Active, Idle, Ultra Low-power and Backup
 Power consumption by peripheral: calculated as the difference in current measurement after having enabled
then disabled the corresponding clock
45.3.1 Power Consumption versus Modes
The values in Table 45-3 and Table 45-4 on page 1160 are estimated values of the power consumption with
operating conditions as follows:
 V
DDIOM0
= 1.8V
 V
DDIOP0 and 1
= 3.3V
 V
DDPLLA
= 1.0V
 V
DDCORE
= 1.0V
 V
DDBU
= 3.3V
 T
A
= 25°C
 There is no consumption on the I/Os of the device.
Figure 45-1. Measures Schematics
These figures represent the power consumption estimated on the power supplies.
Table 45-3. Power Consumption for Different Modes
Mode Conditions Consumption Unit
Active
ARM Core clock is 400 MHz.
MCK is 133 MHz.
All peripheral clocks activated.
onto AMP2
130 mA
Idle
Idle state, waiting an interrupt.
All peripheral clocks de-activated.
onto AMP2
55 mA
Ultra low
power
ARM Core clock is 500 Hz.
All peripheral clocks de-activated.
onto AMP2
30 mA
Backup
Device only V
DDBU
powered
onto AMP1 8
µA
VDDCORE
VDDBU
AMP2
AMP1