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ATmega169P датащи(PDF) 342 Page - ATMEL Corporation

номер детали ATmega169P
подробное описание детали  8-bit Microcontroller with 16K Bytes In-System Programmable Flash
PDF  393 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega169P датащи(HTML) 342 Page - ATMEL Corporation

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342
8018N–AVR–08/09
ATmega169P
It is possible to calculate the typical current consumption based on the numbers from Table 29-2
for other V
CC and frequency settings than listed in Table 29-1.
29.3.0.1
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 29-2, second column, we see that we need to
add 12.4% for the USART0, 10.8% for the SPI, and 18.6% for the TIMER1 module. Reading
from Figure 29-6, we find that the idle current consumption is ~0.18mA at V
CC = 3.0V and F =
1MHz. The total current consumption in idle mode with USART0, TIMER1, and SPI enabled,
gives:
29.4
Power-down Supply Current
Figure 29-11. Power-down Supply Current vs. V
CC (Watchdog Timer Disabled)
PRSPI
3.2%
10.8%
PRTIM1
5.6%
18.6%
PRLCD
12.5%
41.7%
Table 29-2.
Additional Current Consumption (percentage) in Active and Idle mode
PRR bit
Additional Current consumption
compared to Active with external clock
(see Figure 29-1 and Figure 29-2)
Additional Current consumption
compared to Idle with external clock
(see Figure 29-6 and Figure 29-7)
ICCtotal
0.18
mA
1
0.124
0.108
0.186
+++
()
•
0.26
mA
≈≈
85˚C
-40˚C
25˚C
POWER-DOWN SUPPLY CURRENT vs. VCC
WATCHDOG TIMER DISABLED
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VCC (V)



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