ATmega1281R231 Atmel Corporation, ATmega1281R231 Datasheet - Page 285

• 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 26-9. ADC Power Connections, ATmega1281/2561.
Figure 26-10. ADC Power Connections, ATmega640/1280/2560
Ground Plane
ATmega640/1280/1281/2560/2561
Ground Plane
100nF
100nF
100nF
(ADC15/PCINT23) PK7
(ADC14/PCINT22) PK6
(ADC13/PCINT21) PK5
(ADC12/PCINT20) PK4
(ADC11/PCINT19) PK3
(ADC10/PCINT18) PK2
(ADC9/PCINT17) PK1
(ADC8/PCINT16) PK0
(ADC7) PF7
(ADC6) PF6
(ADC5) PF5
(ADC4) PF4
(ADC3) PF3
(ADC2) PF2
(ADC1) PF1
(ADC0) PF0
(ADC6/TDO) PF6
(ADC5/TMS) PF5
(ADC4/TCK) PF4
(ADC7/TDI) PF7
(ADC3) PF3
(ADC2) PF2
(ADC1) PF1
(ADC0) PF0
AVCC
AREF
GND
GND
VCC
PA0
AREF
AVCC
VCC
GND
GND
PJ7
51
52
53
54
55
56
57
58
59
60
61
61
62
62
63
63
64
64
100
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
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99
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