ATMEGA2561V-8MI Atmel, ATMEGA2561V-8MI Datasheet - Page 437

• Manufacturer Part Number: ATMEGA2561V-8MI
• Description: IC AVR MCU 256K 8MHZ 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA2561V-8MI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 256KB (128K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

2549M–AVR–09/10
10 Power Management and Sleep Modes ................................................. 52
11 System Control and Reset .................................................................... 59
12 I/O-Ports .................................................................................................. 70
13 Interrupts .............................................................................................. 105
9.3
9.4
9.5
9.6
9.7
9.8
9.9
9.10
9.11
9.12
9.13
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.10
11.1
11.2
11.3
11.4
11.5
12.1
12.2
12.3
12.4
13.1
Clock Sources .................................................................................................41
Low Power Crystal Oscillator ...........................................................................42
Full Swing Crystal Oscillator ............................................................................44
Low Frequency Crystal Oscillator ....................................................................45
Calibrated Internal RC Oscillator .....................................................................46
128 kHz Internal Oscillator ..............................................................................47
External Clock .................................................................................................48
Clock Output Buffer .........................................................................................49
Timer/Counter Oscillator ..................................................................................49
System Clock Prescaler ..................................................................................49
Register Description ........................................................................................50
Sleep Modes ....................................................................................................52
Idle Mode .........................................................................................................52
ADC Noise Reduction Mode ............................................................................53
Power-down Mode ...........................................................................................53
Power-save Mode ............................................................................................53
Standby Mode .................................................................................................54
Extended Standby Mode .................................................................................54
Power Reduction Register ...............................................................................54
Minimizing Power Consumption ......................................................................54
Register Description ........................................................................................56
Resetting the AVR ...........................................................................................59
Reset Sources .................................................................................................59
Internal Voltage Reference ..............................................................................62
Watchdog Timer ..............................................................................................63
Register Description ........................................................................................67
Introduction ......................................................................................................70
Ports as General Digital I/O .............................................................................71
Alternate Port Functions ..................................................................................75
Register Description for I/O-Ports ..................................................................100
Interrupt Vectors in ATmega640/1280/1281/2560/2561 ................................105
ATmega640/1280/1281/2560/2561
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