ATmega1281R231 Atmel Corporation, ATmega1281R231 Datasheet - Page 390

• Manufacturer Part Number: ATmega1281R231
• Manufacturer: Atmel Corporation

Specifications of ATmega1281R231

• Flash (kbytes): 128 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: 2.4 GHz
• Max Data Rate (mb/s): 2
• Antenna Diversity: Yes
• External Pa Control: Yes
• Power Output (dbm): 3
• Receiver Sensitivity (dbm): -101
• Receive Current Consumption (ma): 13.2
• Transmit Current Consumption (ma): 14.4
• Link Budget (dbm): 104

32.2.1
2549N–AVR–05/11
Supply Current of IO modules
Figure 32-10. Idle Supply Current vs. V
The tables and formulas below can be used to calculate the additional current consumption for
the different I/O modules in Active and Idle mode. The enabling or disabling of the I/O modules
are controlled by the Power Reduction Register. See
details.
Table 32-1.
PRR bit
PRUSART3
PRUSART2
PRUSART1
PRUSART0
PRTWI
PRTIM5
PRTIM4
PRTIM3
PRTIM2
PRTIM1
PRTIM0
PRSPI
PRADC
0.25
0.15
0.05
0.3
0.2
0.1
0
1.5
Additional Current Consumption for the different I/O modules (absolute values)
8.0µA
8.0µA
8.0µA
8.0µA
12µA
6.0µA
6.0µA
6.0µA
11µA
6.0µA
4.0µA
15µA
12µA
V
2
CC
= 2V, F = 1MHz
2.5
ATmega640/1280/1281/2560/2561
3
CC
(Internal RC Oscillator, 128kHz)I
V
51µA
51µA
51µA
51µA
75µA
39µA
39µA
39µA
72µA
39µA
24µA
95µA
75µA
CC
3.5
(V)
V
Typical numbers
CC
= 3V, F = 4MHz
“Power Reduction Register” on page 54
4
4.5
220µA
220µA
220µA
220µA
315µA
150µA
150µA
150µA
300µA
150µA
100µA
400µA
315µA
5
V
CC
= 5V, F = 8MHz
5.5
-40°C
25°C
85°C
390
for