Atmel ATmega328P Xplained Mini MEGA328P-XMINI MEGA328P-XMINI Data Sheet
Product codes
MEGA328P-XMINI
522
ATmega48A/PA/88A/PA/168A/PA/328/P [DATASHEET]
Atmel-8271H-AVR- ATmega-Datasheet_08/2014
32.
ATmega48PA Typical Characteristics – (T
A
= -40°C to 105°C)
The following charts show typical behavior. These figures are not tested during manufacturing. All current
consumption measurements are performed with all I/O pins configured as inputs and with internal pull-ups enabled. A
square wave generator with rail-to-rail output is used as clock source.
consumption measurements are performed with all I/O pins configured as inputs and with internal pull-ups enabled. A
square wave generator with rail-to-rail output is used as clock source.
All Active- and Idle current consumption measurements are done with all bits in the PRR register set and thus, the
corresponding I/O modules are turned off. Also the Analog Comparator is disabled during these measurements.
corresponding I/O modules are turned off. Also the Analog Comparator is disabled during these measurements.
The power consumption in Power-down mode is independent of clock selection.
The current consumption is a function of several factors such as: operating voltage, operating frequency, loading of
I/O pins, switching rate of I/O pins, code executed and ambient temperature. The dominating factors are operating
voltage and frequency.
I/O pins, switching rate of I/O pins, code executed and ambient temperature. The dominating factors are operating
voltage and frequency.
The current drawn from capacitive loaded pins may be estimated (for one pin) as C
L
*
V
CC
*f where C
L
= load
capacitance, V
CC
= operating voltage and f = average switching frequency of I/O pin.
The parts are characterized at frequencies higher than test limits. Parts are not guaranteed to function properly at
frequencies higher than the ordering code indicates.
frequencies higher than the ordering code indicates.
The difference between current consumption in Power-down mode with Watchdog Timer enabled and Power-
down mode with Watchdog Timer disabled represents the differential current drawn by the Watchdog Timer.
down mode with Watchdog Timer disabled represents the differential current drawn by the Watchdog Timer.
32.1
Active Supply Current
Figure 32-1. ATmega48PA: Active Supply Current vs. Low Frequency (0.1MHz -1.0MHz)
5.5V
5.0V
4.5V
4.0V
3.6V
3.3V
3.3V
2.7V
1.8V
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Frequency (MHz)
I
CC
(m
A
)