316
4317I–AVR–01/08
AT90PWM2/3/2B/3B
= 3.0V and F = 1MHz. The total current consumption in idle mode with USART, TIMER1, and
SPI enabled, gives:
27.2.1.3
Example 3
All I/O modules should be enabled. Calculate the expected current consumption in active mode
at V
CC
= 3.6V and F = 10MHz. We find the active current consumption without the I/O modules
). Then, by using the numbers from
- second column,
we find the total current consumption:
27.3
Power-Down Supply Current
Figure 27-9. Power-Down Supply Current vs. V
CC
(Watchdog Timer Disabled)
I
CC
total
0.6
mA
1
0.156
0.085
0.053
+
+
+
(
)
•
0.77
mA
≈
≈
I
CC
total
7.0
mA
1
0.1
0.1
0.1
0.085
0.043
0.053
0.156
0.105
+
+
+
+
+
+
+
+
(
)
•
12.2
mA
≈
≈
POWER-DOWN SUPPLY CURRENT vs. V
CC
WATCHDOG TIMER DISABLED
105 °C
85 °C
25 °C
-40 °C
0
1
2
3
4
5
6
7
2
2,5
3
3,5
4
4,5
5
5,5
V
CC
(V)
I
CC
(u
A
)
