Manual

960
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
47.3 Power Consumption
This section contains:
• The typical power consumption of PLLs, Slow Clock and Main Oscillator.
• The power consumption of power supply in three different modes: Active, Ultra Low-power
and Backup.
• The power consumption by peripheral: calculated as the difference in current measurement
after having enabled then disabled the corresponding clock.
47.3.1 Power Consumption versus Modes
The values in Table 47-3 and Table 47-4 on page 961 are estimated values of the power con-
sumption with operating conditions as follows:
•V
VDDIOM
= V
DDIOP0
= V
DDIOP1
= V
DDIOMPA
= V
DDIOMPB
= V
DDANA
=3.3 V
•V
DDPLL
= V
DDUPLL
= V
DDUTMII
= 3.3V
•V
DDCORE
= V
DDBU
= V
DDUTMIC
= 1.2V
•T
A = 25°C
• There is no consumption on the I/Os of the device
Figure 47-1. Measures Schematics
These figures represent the power consumption estimated on the power supplies.
V
IH
Input High-level Voltage V
VDDIO
= V
VDDIOM
or V
VDDIOP
2V
VDDIO
+0.3 V
V
OL
Output Low-level Voltage 0.4 V
V
OH
Output High-level Voltage V
VDDIO
= V
VDDIOM
or V
VDDIOP
V
VDDIO
-0.4 V
R
PULLUP
Pull-up Resistance PA0-PA31, PB0-PB31, PC0-PC31, PD0-PD31 70 100 175 kOhm
I
O
Output Current PA0-PA31, PB0-PB31, PC0-PC31, PD0-PD31 8 mA
I
SC
Static Current
On V
VDDCORE
= 1.2V,
MCK = 0 Hz, excluding POR
T
A
=25°C TBD TBD
µA
All inputs driven
TMS, TDI, TCK, NRST = 1
T
A
=85°C TBD TBD
On V
VDDBU
= 1.2V,
Logic cells consumption,
excluding POR
T
A
=25°C TBD TBD
nA
All inputs driven WKUP = 0 T
A
=85°C TBD TBD
Table 47-2. DC Characteristics
VDDUTMIC
VDDUTMII
AMP4
AMP3
VDDCORE
VDDBU
AMP2
AMP1