ATmega1281R231 Atmel Corporation, ATmega1281R231 Datasheet - Page 128

• 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

2549N–AVR–05/11
Figure 16-9. Timer/Counter Timing Diagram, with Prescaler (f
Figure 16-10
mode and PWM mode, where OCR0A is TOP.
Figure 16-10. Timer/Counter Timing Diagram, Setting of OCF0x, with Prescaler (f
Figure 16-11
PWM mode where OCR0A is TOP.
Figure 16-11. Timer/Counter Timing Diagram, Clear Timer on Compare Match mode, with Pres-
TCNTn
TCNTn
TCNTn
(clk
(clk
(clk
(CTC)
OCRnx
OCRnx
OCFnx
OCFnx
TOVn
clk
clk
clk
clk
clk
clk
I/O
I/O
I/O
I/O
I/O
I/O
Tn
Tn
Tn
/8)
/8)
/8)
shows the setting of OCF0B in all modes and OCF0A in all modes except CTC
shows the setting of OCF0A and the clearing of TCNT0 in CTC mode and fast
caler (f
clk_I/O
OCRnx - 1
MAX - 1
TOP - 1
/8)
ATmega640/1280/1281/2560/2561
OCRnx
MAX
TOP
OCRnx Value
TOP
OCRnx + 1
BOTTOM
BOTTOM
clk_I/O
/8)
BOTTOM + 1
BOTTOM + 1
OCRnx + 2
clk_I/O
/8)
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