ATMEGA2561V-8MU Atmel, ATMEGA2561V-8MU Datasheet - Page 7

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

Specifications of ATMEGA2561V-8MU

• 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
• Processor Series: ATMEGA256x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 8 KB
• Interface Type: 2-Wire/SPI/USART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 6
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.2
Table 2-1.
2.3
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
2549MS–AVR–09/10
Device
ATmega1280
ATmega1281
ATmega2560
ATmega2561
ATmega640
Comparison Between ATmega1281/2561 and ATmega640/1280/2560
Pin Descriptions
VCC
GND
Port A (PA7..PA0)
Port B (PB7..PB0)
Port C (PC7..PC0)
Configuration Summary
128KB
128KB
256KB
256KB
Flash
64KB
Each device in the ATmega640/1280/1281/2560/2561 family differs only in memory size and
number of pins.
Digital supply voltage.
Ground.
Port A is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port A output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port A pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port A pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
P o r t A a l s o s e r v e s t h e f u n c t i o n s o f v a r i o u s s p e c i a l f e a t u r e s o f t h e
ATmega640/1280/1281/2560/2561 as listed on
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port B output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port B pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port B has better driving capabilities than the other ports.
P o r t B a l s o s e r v e s t h e f u n c t i o n s o f v a r i o u s s p e c i a l f e a t u r e s o f t h e
ATmega640/1280/1281/2560/2561 as listed on
Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port C output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port C pins that are externally pulled low will source current if the pull-up
EEPROM
4KB
4KB
4KB
4KB
4KB
Table 2-1
RAM
8KB
8KB
8KB
8KB
8KB
summarizes the different configurations for the six devices.
Purpose I/O pins
ATmega640/1280/1281/2560/2561
General
86
86
54
86
54
page
page
16 bits resolution
PWM channels
78.
79.
12
12
12
6
6
USARTs
Serial
4
4
2
4
2
Channels
ADC
16
16
16
8
8
7