AT90PWM2B-16SE ATMEL [ATMEL Corporation], AT90PWM2B-16SE Datasheet - Page 314
AT90PWM2B-16SE
Manufacturer Part Number
AT90PWM2B-16SE
Description
8-bit Microcontroller with 8K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT90PWM2B-16SE.pdf
(361 pages)
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27.2.1.1
27.2.1.2
314
AT90PWM2/3/2B/3B
Example 1
Example 2
are controlled by the Power Reduction Register. See
details.
Table 27-1.
Table 27-2.
It is possible to calculate the typical current consumption based on the numbers from
for other V
Calculate the expected current consumption in idle mode with USART, TIMER1, and SPI
enabled at V
add 18% for the USART, 26% for the SPI, and 11% for the TIMER1 module. Reading from
ure 27-5
total current consumption in idle mode with USART0, TIMER1, and SPI enabled, gives:
Same conditions as in example 1, but in active mode instead. From
we see that we need to add 3.3% for the USART, 4.8% for the SPI, and 2.0% for the TIMER1
module. Reading from
PRR bit
PRPSC2
PRPSC1
PRPSC0
PRTIM1
PRTIM0
PRSPI
PRUSART
PRADC
PRR bit
PRPSC2
PRPSC1
PRPSC0
PRTIM1
PRTIM0
PRSPI
PRUSART
PRADC
I
CC
total
≈
, we find that the idle current consumption is ~0,17mA at V
0.17mA
CC
CC
and frequency settings than listed in
Additional Current Consumption for the different I/O modules (absolute values)
Additional Current Consumption (percentage) in Active and Idle mode
= 3.0V and F = 1MHz. From
•
(
1
Additional Current consumption
compared to Active with external
clock
(see
10%
10%
10%
8.5%
4.3%
5.3%
15.6
10.5%
+
Typical numbers
350 uA
350 uA
350 uA
300 uA
200 uA
250 uA
550 uA
350 uA
0.36
Figure 27-1
Figure 27-1
+
0.22
V
CC
+
= 3V, F = 8MHz
, we find that the active current consumption is ~0,6mA at V
0.14
and
)
Figure
≈
0.29mA
Table
27-2)
Table
27-2, third column, we see that we need to
“Power Reduction Register” on page 42
27-1.
Additional Current consumption
compared to Idle with external clock
(see
25%
25%
25%
22%
11%
14%
36
25%
1.3 mA
1.3 mA
1.3 mA
1.15 mA
0.75 mA
0.9 mA
2 mA
1.3 mA
Figure 27-5
CC
V
Table
CC
= 3.0V and F = 1MHz. The
= 5V, F = 16MHz
and
27-2, second column
Figure
4317J–AVR–08/10
Table 27-2
27-6)
Fig-
for
CC
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