ATmega1281R231 Atmel Corporation, ATmega1281R231 Datasheet - Page 399

• 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

32.8
2549N–AVR–05/11
Pin Threshold and Hysteresis
Figure 32-25. I/O Pin Output Voltage vs. Source Current (V
Figure 32-26. I/O Pin Input Threshold Voltage vs. V
3.5
2.5
1.5
0.5
5.1
4.9
4.8
4.7
4.6
4.5
4.4
4.3
5
3
2
1
0
1.5
0
2
5
2.5
ATmega640/1280/1281/2560/2561
3
10
I
V
OH
CC
3.5
(mA)
(V)
CC
15
(V
4
IH
, IO Pin Read as “1“)
CC
= 5V)
4.5
20
-40°C
25°C
85°C
5
5.5
25
-40°C
25°C
85°C
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