ATmega2561R212 Atmel Corporation, ATmega2561R212 Datasheet - Page 157
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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2549N–AVR–05/11
Figure 17-12
frequency correct PWM mode the OCRnx Register is updated at BOTTOM. The timing diagrams
will be the same, but TOP should be replaced by BOTTOM, TOP-1 by BOTTOM+1 and so on.
The same renaming applies for modes that set the TOVn Flag at BOTTOM.
Figure 17-12. Timer/Counter Timing Diagram, no Prescaling
Figure 17-13
Figure 17-13. Timer/Counter Timing Diagram, with Prescaler (f
(PC and PFC PWM)
and ICF n
and ICFn
(CTC and FPWM)
TOVn
(Update at TOP)
(PC and PFC PWM)
TOVn
(CTC and FPWM)
(Update at TOP)
TCNTn
TCNTn
OCRnx
as TOP)
(clk
TCNTn
TCNTn
OCRnx
(clk
as TOP)
clk
clk
clk
clk
I/O
I/O
shows the count sequence close to TOP in various modes. When using phase and
shows the same timing data, but with the prescaler enabled.
(FPWM)
(FPWM)
I/O
Tn
I/O
Tn
/8)
/1)
(if used
(if used
TOP - 1
TOP - 1
TOP - 1
TOP - 1
Old OCRnx Value
ATmega640/1280/1281/2560/2561
Old OCRnx Value
TOP
TOP
TOP
TOP
BOTTOM
BOTTOM
TOP - 1
TOP - 1
clk_I/O
New OCRnx Value
New OCRnx Value
/8)
BOTTOM + 1
BOTTOM + 1
TOP - 2
TOP - 2
157
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