ATmega644R212 Atmel Corporation, ATmega644R212 Datasheet - Page 388

• 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

26.3
26.3.1
8011O–AVR–07/10
ATmega644P Typical Characteristic
Active Supply Current
Figure 26-95. Active Supply Current vs. Low Frequency (0.1 MHz - 1.0 MHz).
Figure 26-96. Active Supply Current vs. Frequency (1 MHz - 20 MHz).
1.6
1.4
1.2
0.8
0.6
0.4
0.2
25
20
15
10
1
0
5
0
0
0
0.1
2
0.2
4
1.8V
0.3
6
0.4
8
Frequency (MHz)
Frequency (MHz)
0.5
10
ATmega164P/324P/644P
2.7V
0.6
12
3.3V
0.7
14
0.8
16
4.0V
0.9
18
20
1
5.5V
5.0V
4.5V
5.5V
5.0V
4.5V
4.0V
3.3V
2.7V
1.8V
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