Atmel ATmega328P Xplained Mini MEGA328P-XMINI MEGA328P-XMINI Data Sheet

Product codes

MEGA328P-XMINI

503

ATmega48A/PA/88A/PA/168A/PA/328/P [DATASHEET]

Atmel-8271H-AVR- ATmega-Datasheet_08/2014

It is possible to calculate the typical current consumption based on the numbers from

Table 31-15

for other V

and frequency settings than listed in

Table 31-16

31.8.3.1 Example

Calculate the expected current consumption in idle mode with TIMER1, ADC, and SPI enabled at V

= 2.0V

and F = 1MHz. From

Table 31-16

, third column, we see that we need to add 14.5% for the TIMER1, 22.1% for

the ADC, and 15.7% for the SPI module. Reading from

Figure 31-338 on page 500

, we find that the idle current

consumption is ~0.055 mA at V

= 2.0V and F = 1MHz. The total current consumption in idle mode with

TIMER1, ADC, and SPI enabled, gives:

31.8.4 Power-down Supply Current

Figure 31-342. ATmega328P: Power-Down Supply Current vs. V

(Watchdog Timer Disabled)

PRTIM0

0.9%

4.8%

PRSPI

2.9%

15.7%

PRADC

4.1%

22.1%

Table 31-16.

ATmega328P: Additional Current Consumption (percentage) in Active and Idle mode (Continued)

PRR bit

Additional Current consumption
compared to Active with external
clock (see

Figure 31-332 on page

497

and

Figure 31-333 on page

498

)

Additional Current consumption
compared to Idle with external
clock (see

Figure 31-337 on page

500

and

Figure 31-338 on page

500

)

total

0.045 mA (1 + 0.145 + 0.221 + 0.157)



0.069 mA



105°C

85°C

25°C

-40°C

0.5

1.5

2.5

1.5

2.5

3.5

4.5

5.5

(V)

(µ

)