A000003 Arduino, A000003 Datasheet - Page 321

• Manufacturer Part Number: A000003
• Description: MCU, MPU & DSP Development Tools MINI
• Manufacturer: Arduino
• Series: -r
• Type: MCUr

Specifications of A000003

• Processor To Be Evaluated: Atmega328
• Processor Series: ATmega
• Data Bus Width: 8 bit
• Interface Type: USB, RS-232
• Operating Supply Voltage: 7 V to 9 V
• Contents: Board
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: ATmega168

29.3.0.1
29.3.0.2
29.3.0.3
2545S–AVR–07/10
Example 1
Example 2
Example 3
Table 29-2.
It is possible to calculate the typical current consumption based on the numbers from Table 2 for
other V
Calculate the expected current consumption in idle mode with USART0, TIMER1, and TWI
enabled at V
18% for the USART0, 26% for the TWI, and 11% for the TIMER1 module. Reading from Figure
3, we find that the idle current consumption is ~0,075 mA at V
current consumption in idle mode with USART0, TIMER1, and TWI enabled, gives:
Same conditions as in example 1, but in active mode instead. From Table 2, second column we
see that we need to add 3.3% for the USART0, 4.8% for the TWI, and 2.0% for the TIMER1
module. Reading from Figure 1, we find that the active current consumption is ~0,42 mA at V
= 3.0V and F = 1 MHz. The total current consumption in idle mode with USART0, TIMER1, and
TWI enabled, gives:
All I/O modules should be enabled. Calculate the expected current consumption in active mode
at V
to be ~ 4.0 mA (from Figure 2). Then, by using the numbers from Table 2 - second column, we
find the total current consumption:
I
I
I
CC
CC
CC
PRR bit
PRTIM1
PRTIM0
PRSPI
PRADC
total
total
total
CC
≈
≈
≈
= 3.6V and F = 10 MHz. We find the active current consumption without the I/O modules
CC
0.075mA
0.42mA
4.0mA
and frequency settings than listed in Table 1.
CC
•
Additional Current Consumption (percentage) in Active and Idle mode
•
(
= 3.0V and F = 1 MHz. From Table 2, third column, we see that we need to add
•
1
(
1
(
+
1
+
Additional Current consumption
compared to Active with external
clock
(see
2.0%
1.6%
6.1%
4.9%
0.033
+
0.033
0.18
Figure 29-1
+
+
+
0.048
0.26
0.048
+
+
+
0.11
0.047
and
0.02
)
)
Figure
≈
+
≈
0.116mA
0.02
0.46mA
+
29-2)
0.016
+
0.061
Additional Current consumption
compared to Idle with external clock
(see
11%
8.5%
33%
26%
+
CC
ATmega48/88/168
0.049
Figure 29-7
= 3.0V and F = 1 MHz. The total
)
≈
5.1mA
and
Figure
29-8)
321
CC