ATmega644PR231 Atmel Corporation, ATmega644PR231 Datasheet - Page 379

• Manufacturer Part Number: ATmega644PR231
• Manufacturer: Atmel Corporation

Specifications of ATmega644PR231

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Max I/o Pins: 32
• 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): 4
• Eeprom (bytes): 2048
• Operating Voltage (vcc): 1.8 to 3.6
• Timers: 3
• 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

26.2.10
8011O–AVR–07/10
BOD Threshold
Figure 26-78. BOD Threshold vs. Temperature (V
Figure 26-79. BOD Threshold vs. Temperature (V
4.35
4.25
2.75
2.65
4.4
4.3
4.2
2.8
2.7
2.6
-60
-60
-40
-40
-20
-20
0
0
Temperature (°C)
Temperature (°C)
20
20
ATmega164P/324P/644P
CC
CC
= 4.3V)
= 2.7V)
40
40
Falling V
Falling V
Rising V
Rising V
60
60
CC
CC
CC
CC
80
80
100
100
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