ATmega644R212 Atmel Corporation, ATmega644R212 Datasheet - Page 146

• 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

8111C–MCU Wireless–09/09
Table 11-14. Antenna Diversity Switch Control
Note:
ANT_CTRL
Register values 1 and 2 are valid for ANT_EXT_SW_EN = 1.
0
1
2
3
Reserved
Antenna 1
DIG1 = L
DIG2 = H
Antenna 0
DIG1 = H
DIG2 = L
Default value for ANT_EXT_SW_EN = 0.
Mandatory setting for applications not using Antenna Diversity.
AT86RF231
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