ATmega1281R231 Atmel Corporation, ATmega1281R231 Datasheet - Page 438
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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38.12 Rev. 2549C-09/05
38.13 Rev. 2549B-05/05
38.14 Rev. 2549A-03/05
2549N–AVR–05/11
1.
2.
3.
4.
5.
6.
7.
8.
1.
2.
3.
4.
1.
Updated Speed Grade in section
Added
Updated
clock must be larger than 2 CPU cycles.
Updated
Updated
Updated
Updated
Updated
JTAG ID/Signature for ATmega640 updated: 0x9608.
Updated
Updated
Updated
Initial version.
“Resources” on page
“SPI – Serial Peripheral Interface” on page
“Bit Rate Generator Unit” on page
“Maximum speed vs. V
“Ordering Information” on page
“Packaging Information” on page
“Errata” on page
Table 13-7 on page
“Serial Programming Instruction set” on page
“Errata” on page
428.
428.
ATmega640/1280/1281/2560/2561
11.
81.
CC
“Features” on page
” on page
419.
424. Package 64M1 replaced by 64M2.
247.
373.
195. In Slave mode, low and high period SPI
1.
352.
438
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