ATmega2561R212 Atmel Corporation, ATmega2561R212 Datasheet - Page 385
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ATmega2561R212
Manufacturer Part Number
ATmega2561R212
Description
Manufacturer
Atmel Corporation
Specifications of ATmega2561R212
Flash (kbytes)
256 Kbytes
Max. Operating Frequency
16 MHz
Max I/o Pins
54
Spi
3
Twi (i2c)
1
Uart
2
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Crypto Engine
AES
Sram (kbytes)
8
Eeprom (bytes)
4096
Operating Voltage (vcc)
1.8 to 3.6
Timers
6
Frequency Band
700/800/900MHz
Max Data Rate (mb/s)
1
Antenna Diversity
No
External Pa Control
Yes
Power Output (dbm)
10
Receiver Sensitivity (dbm)
-110
Receive Current Consumption (ma)
9.0
Transmit Current Consumption (ma)
18 at 5dBm
Link Budget (dbm)
120
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32. Typical Characteristics
32.1
2549N–AVR–05/11
Active Supply Current
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 sine 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 regis-
ters set and thus, the corresponding I/O modules are turned off. Also the Analog Comparator is
disabled during these measurements.
show the additional current consumption compared to I
ule controlled by the Power Reduction Register. See
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 tempera-
ture. The dominating factors are operating voltage and frequency.
The current drawn from capacitive loaded pins may be estimated (for one pin) as C
where C
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.
The difference between current consumption in Power-down mode with Watchdog Timer
enabled and Power-down mode with Watchdog Timer disabled represents the differential cur-
rent drawn by the Watchdog Timer.
Figure 32-1. Active Supply Current vs. frequency (0.1MHz - 1.0MHz)
2.5
1.5
0.5
L
2
1
0
= load capacitance, V
0
0.1
0.2
0.3
CC
ATmega640/1280/1281/2560/2561
= operating voltage and f = average switching frequency of I/O
0.4
Frequency (MHz)
Table 32-1 on page 390
0.5
0.6
“Power Reduction Register” on page 54
CC
0.7
Active and I
0.8
and
0.9
CC
Table 32-2 on page 391
Idle for every I/O mod-
1
5.5V
5.0V
4.5V
4.0V
3.3V
2.7V
1.8V
L
×
V
CC
385
× f
for
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