ATmega640/1280/1281/2560/2561
Oscillator is kept running. From Extended Standby mode, the device wakes up in six clock
cycles.Power Reduction Register” on page 54 for details.
Table 32-1.
Additional Current Consumption for the different I/O modules (absolute values)
PRR bit
Typical numbers
VCC = 2V, F = 1MHz
VCC = 3V, F = 4MHz
VCC = 5V, F = 8MHz
220 uA
PRUSART3
PRUSART2
PRUSART1
PRUSART0
PRTWI
8.0 uA
8.0 uA
8.0 uA
8.0 uA
12 uA
6.0 uA
6.0 uA
6.0 uA
11 uA
6.0 uA
4.0 uA
15 uA
12 uA
51 uA
51 uA
51 uA
51 uA
75 uA
39 uA
39 uA
39 uA
72 uA
39 uA
24 uA
95 uA
75 uA
220 uA
220 uA
220 uA
315 uA
150 uA
150 uA
150 uA
300 uA
150 uA
100 uA
400 uA
315 uA
PRTIM5
PRTIM4
PRTIM3
PRTIM2
PRTIM1
PRTIM0
PRSPI
PRADC
Table 32-2.
Additional Current Consumption (percentage) in Active and Idle mode
Additional Current consumption
compared to Active with external
clock
Additional Current consumption
compared to Idle with external clock
PRR bit
PRUSART3
PRUSART2
PRUSART1
PRUSART0
PRTWI
3.0%
3.0%
3.0%
3.0%
4.4%
1.8%
1.8%
1.8%
4.3%
1.8%
1.5%
3.3%
4.5%
17%
17%
17%
17%
24%
10%
10%
10%
23%
10%
8.0%
18%
24%
PRTIM5
PRTIM4
PRTIM3
PRTIM2
PRTIM1
PRTIM0
PRSPI
PRADC
It is possible to calculate the typical current consumption based on the numbers from Table 32-1
for other VCC and frequency settings than listed in Table 32-2.
393
2549L–AVR–08/07
ATMEL [ ATMEL ]
