Datasheet

365
8284D–AVR–6/11
ATmega169A/PA/329A/PA/3290A/PA/649A/P/6490A/P
30.1.3.1 Example 1
Calculate the expected current consumption in idle mode with USART0, TIMER1, and SPI
enabled at V
CC
= 3.0V and F = 1MHz. From Table 30-2, second column, we see that we need to
add 13.1% for the USART0, 13.0% for the SPI, and 13.2% for the TIMER1 module. Reading
from Figure 30-6, we find that the idle current consumption is ~0.09 mA at V
CC
=3.0V and
F = 1MHz. The total current consumption in idle mode with USART0, TIMER1, and SPI enabled,
gives:
30.1.4 Power-down Supply Current
Figure 30-11. ATmega169A: Power-down Supply Current vs. V
CC
(Watchdog Timer Disabled)
ICCtotal 0.09mA 1 0.131 0.13 0.132+++()• 0.13mA≈≈
85 °C
25 °C
-45 °C
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
I
CC
(uA)