ATmega1281R231 Atmel Corporation, ATmega1281R231 Datasheet - Page 378

• Manufacturer Part Number: ATmega1281R231
• Manufacturer: Atmel Corporation

Specifications of ATmega1281R231

• Flash (kbytes): 128 Kbytes
• Max. Operating Frequency: 16 MHz
• Max I/o Pins: 54
• 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): 8
• Eeprom (bytes): 4096
• Operating Voltage (vcc): 1.8 to 3.6
• Timers: 6
• 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

Table 31-10. ADC Characteristics, Differential Channels
2549N–AVR–05/11
Symbol
Parameter
Quantization Error, Gain and Offset Error)
Absolute Accuracy(Including INL, DNL,
Differential Non-Linearity (DNL)
Integral Non-Linearity (INL)
Clock Frequency
Conversion Time
Offset Error
Resolution
Gain Error
Gain = 1×
V
CLK
Gain = 10×
V
CLK
Gain = 200×
V
CLK
Gain = 1×
V
CLK
Gain = 10×
V
CLK
Gain = 200×
V
CLK
Gain = 1×
V
CLK
Gain = 10×
V
CLK
Gain = 200×
V
CLK
Gain =
Gain = 10×
Gain = 200×
Gain = 1×
V
CLK
Gain = 10×
V
CLK
Gain = 200×
V
CLK
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ATmega640/1280/1281/2560/2561
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
Gain = 10×
Gain = 200×
Gain =
Condition
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
1×
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
1×
Min
50
65
(1)
Typ
0.75
2.5
1.5
1.7
1.7
0.5
18
17
10
8
8
7
9
5
9
2
2
3
(1)
Max
200
260
(1)
Units
LSB
LSB
Bits
kHz
µs
%
378