atmega3250v-8auatmega325v-8ai ATMEL Corporation, atmega3250v-8auatmega325v-8ai Datasheet - Page 311

• Manufacturer Part Number: atmega3250v-8auatmega325v-8ai
• Description: Atmega3250 8-bit Microcontroller With In-system Programmable Flash
• Manufacturer: ATMEL Corporation

29.3.0.1
29.4
2570L–AVR–08/07
Power-down Supply Current
Example
Calculate the expected current consumption in idle mode with USART0, TIMER1, and SPI
enabled at V
USART0, 9% for the SPI, and 4.8% for the TIMER1 module. From
idle current consumption is ~0.16mA at V
tion in idle mode with USART0, TIMER1, and SPI enabled, gives:
Figure 29-11. Power-down Supply Current vs. V
I
CC
total
3.5
2.5
1.5
0.5
≈
4
3
2
1
0
0,16mA
1.5
CC
•
= 3.0V and F = 1MHz.
(
2
1
+
0,085
POWER-DOWN SUPPLY CURRENT vs. V
2.5
+
0,09
+
WATCHDOG TIMER DISABLED
0,048
3
)
Table 29-2
≈
V
CC
CC
3.5
0,20mA
(V)
ATmega325/3250/645/6450
= 3.0V and F = 1MHz. The total current consump-
CC
(Watchdog Timer Disabled)
4
shows that we need to add 8.5% for the
4.5
CC
Figure
5
29-6, we find that the
5.5
-40 ˚C
85 ˚C
25 ˚C
311