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183
8183F–AVR–06/12
ATtiny24A/44A/84A
21.1.1
Example
Calculate the expected current consumption in idle mode with USI, TIMER0, and ADC enabled
at V
to add 5% for the USI, 10% for TIMER0, and 20% for the ADC. Reading from
Figure 21-61 onpage 213, we find that current consumption in idle mode at 2V and 1 MHz is about 0.04 mA. The
total current consumption in idle mode with USI, TIMER0, and ADC enabled is therefore:
21.2
ATtiny24A
21.2.1
Current Consumption in Active Mode
Figure 21-1.
Active Supply Current vs. Low Frequency
0.1 - 1.0 MHz, PRR = 0xFF
Table 21-2.
Additional Current Consumption (percentage) in Active and Idle mode
PRR bit
Current consumption additional to
active mode with external clock
Current consumption additional to
idle mode with external clock
PRTIM1
1 %
5 %
PRTIM0
3 %
10 %
PRUSI
1 %
5 %
PRADC
5 %
20 %
ICCTOT
0,05mA
10,050,10
0,20
+++
()
×
0,06mA
≈≈
5.5 V
5.0 V
4.5 V
4.0 V
3.3 V
2.7 V
1.8 V
0
0,2
0,4
0,6
0,8
1
0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
1
Frequency (MHz)
I CC
(mA)