ATmega644R212 Atmel Corporation, ATmega644R212 Datasheet - Page 343

• Manufacturer Part Number: ATmega644R212
• Manufacturer: Atmel Corporation

Specifications of ATmega644R212

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Max I/o Pins: 32
• Spi: 3
• Twi (i2c): 1
• Uart: 1
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Crypto Engine: AES
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• Operating Voltage (vcc): 1.8 to 3.6
• Timers: 3
• 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

26.1.3
8011O–AVR–07/10
Supply Current of IO modules
Figure 26-10. 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
page 48
Table 26-1.
PRR bit
PRUSART1
PRUSART0
PRTWI
PRTIM2
PRTIM1
PRTIM0
PRADC
PRSPI
for details.
0.12
0.08
0.06
0.04
0.02
0.1
0
1.5
Additional Current Consumption for the different I/O modules (absolute values)
Typical numbers
6.0 µA
7.9 µA
16.9 µA
14.4 µA
9.0 µA
5.1 µA
18.1 µA
11.1 µA
V
CC
2
= 2V, F = 1 MHz
2.5
3
CC
38.5 µA
50.3 µA
95.8 µA
57.3 µA
33.3 µA
86.3 µA
70.5 µA
(Internal RC Oscillator, 128 kHz).
116.2 µA
V
CC
V
CC
3.5
= 3V, F = 4 MHz
(V)
ATmega164P/324P/644P
4
”PRR – Power Reduction Register” on
4.5
150.0 µA
197.0 µA
489.3 µA
393.2 µA
234.8 µA
132.5 µA
335.3 µA
285.0 µA
V
CC
= 5V, F = 8 MHz
5
5.5
-40°C
25°C
85°C
343