ATmega644R212 Atmel Corporation, ATmega644R212 Datasheet - Page 336

• 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

Table 25-12. ADC Characteristics, Differential Channels
8011O–AVR–07/10
Symbol
Parameter
Resolution
Absolute Accuracy (Including INL,
DNL Quantization Error and Offset
Error)
Integral Non-linearity (INL)
Differential Non-linearity (DNL)
Condition
Gain = 1×
Gain = 10×
Gain = 200×
Gain = 1×
V
ADC clock = 200 kHz
Gain = 10×
V
ADC clock = 200 kHz
Gain = 200×
V
ADC clock = 200 kHz
Gain = 1×
V
ADC clock = 200 kHz
Gain = 10×
V
ADC clock = 200 kHz
Gain = 200×
V
ADC clock = 200 kHz
Gain = 1×
V
ADC clock = 200 kHz
Gain = 10×
V
ADC clock = 200 kHz
Gain = 200×
V
ADC clock = 200 kHz
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 5V, V
= 5 V, V
= 5V, V
= 5V, V
= 5V, V
= 5V, V
= 5V, V
= 5V, V
= 5V, V
REF
REF
REF
REF
REF
REF
REF
REF
REF
= 4V
= 4V
= 4V
= 4V
= 4V
= 4V
= 4V
= 4V
= 4V
ATmega164P/324P/644P
Min
(1)
Typ
19.5
20.5
2.25
4.25
11.5
0.75
0.75
8.5
9.5
10
10
7
(1)
Max
(1)
Units
LSB
Bits
336