Atmel ATmega328P Xplained Mini MEGA328P-XMINI MEGA328P-XMINI 数据表
产品代码
MEGA328P-XMINI
322
ATmega48A/PA/88A/PA/168A/PA/328/P [DATASHEET]
Atmel-8271H-AVR- ATmega-Datasheet_08/2014
31.
Typical Characteristics – (T
A
= -40°C to 85°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. The
the corresponding I/O modules are turned off. Also the Analog Comparator is disabled during these
measurements. The
and
shows the
additional current consumption compared to I
CC
Active and I
CC
Idle for every I/O module controlled by the Power
Reduction Register. See
for details.
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.
loading of 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.
at 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.