ATmega1281R231 Atmel Corporation, ATmega1281R231 Datasheet - Page 164
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ATmega1281R231
Manufacturer Part Number
ATmega1281R231
Description
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
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17.11.20 OCR3AH and OCR3AL – Output Compare Register 3 A
17.11.21 OCR3BH and OCR3BL – Output Compare Register 3 B
17.11.22 OCR3CH and OCR3CL – Output Compare Register 3 C
17.11.23 OCR4AH and OCR4AL – Output Compare Register 4 A
17.11.24 OCR4BH and OCR4BL – Output Compare Register 4 B
17.11.25 OCR4CH and OCR4CL –Output Compare Register 4 C
17.11.26 OCR5AH and OCR5AL – Output Compare Register 5 A
2549N–AVR–05/11
Bit
(0x99)
(0x98)
Read/Write
Initial Value
Bit
(0x9B)
(0x9A)
Read/Write
Initial Value
Bit
(0x9D)
(0x9C)
Read/Write
Initial Value
Bit
(0xA9)
(0xA8)
Read/Write
Initial Value
Bit
(0xAA)
(0xAB)
Read/Write
Initial Value
Bit
(0xAD)
(0xAC)
Read/Write
Initial Value
Bit
(0x129)
(0x128)
Read/Write
Initial Value
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7
0
7
0
7
0
7
0
7
0
7
0
7
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
6
0
6
0
6
0
6
0
6
0
6
0
6
0
ATmega640/1280/1281/2560/2561
R/W
R/W
R/W
R/W
R/W
R/W
R/W
5
0
5
0
5
0
5
0
5
0
5
0
5
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
4
0
4
0
4
0
4
0
4
0
4
0
4
0
OCR3A[15:8]
OCR3B[15:8]
OCR3C[15:8]
OCR4A[15:8]
OCR4B[15:8]
OCR4C[15:8]
OCR5A[15:8]
OCR3A[7:0]
OCR3B[7:0]
OCR3C[7:0]
OCR4A[7:0]
OCR4B[7:0]
OCR4C[7:0]
OCR5A[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
3
0
3
0
3
0
3
0
3
0
3
0
3
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
2
0
2
0
2
0
2
0
2
0
2
0
2
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
0
1
0
1
0
1
0
1
0
1
0
1
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
0
0
0
0
0
0
OCR3AH
OCR3BH
OCR3CH
OCR4AH
OCR4BH
OCR4CH
OCR5AH
OCR3AL
OCR3BL
OCR3CL
OCR4AL
OCR4BL
OCR4CL
OCR5AL
164
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