ATMEGA2561-16MU

The ATmega640/1280/1281/2560/2561 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega640/1280/1281/2560/2561 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Key features

• High Performance, Low Power AVR 8- Bit Microcontroller
• Advanced RISC Architecture
• 168 Powerful Instructions - Most Single- Clock Cycle Execution
• 32×8 General Purpose Working Registers
• Fully Static Operation - Up to 16 MIPS Throughput at 16MHz
• On- Chip 2- cycle Multiplier
• High Endurance Non- volatile Memory Segments
• 64K/128K/256KBbytes of In- System Self- Programmable Flash
• 4Kbytes EEPROM
• 8Kbytes Internal SRAM
• Write/Erase Cycles:10,000 Flash/100,000 EEPROM
• Data retention:20 years at 85°C / 100 years at 25°C
• Optional Boot Code Section with Independent Lock Bits - In- System Programming
• On- chip Boot Program
• True Read- While- Write Operation
• Endurance: Up to 64kbytes
• Optional External Memory Space
• QTouch library support - Capacitive touch buttons, sliders and wheels
• QTouch and QMatrix acquisition - Up to 64 sense channels
• JTAG (IEEE std. 1149.1 compliant) Interface - Boundary- scan Capabilities According to the JTAG Standard
• Extensive On- chip Debug Support
• Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
• Peripheral Features
• Two 8- bit Timer/Counters with Separate Prescaler and Compare Mode
• Four 16- bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode
• Real Time Counter with Separate Oscillator
• Four 8- bit PWM Channels
• Six/Twelve PWM Channels with Programmable Resolution from 2 to 16 Bits (ATmega1281/2561, ATmega640/1280/2560)
• Output Compare Modulator
• 8/16- channel, 10- bit ADC (ATmega1281/2561, ATmega640/1280/2560)
• Two/Four Programmable Serial USART (ATmega1281/2561, ATmega640/1280/2560)
• Master/Slave SPI series interface
• Byte Oriented 2- Wire Serial Interface
• Programmable Watchdog Timer with Separate On- chip Oscillator
• On- chip Analog Comparator
• Interrupt and Wake- up on Pin Change
• Special Microcontroller Features
• Power- on Reset and Programmable Brown- out Detection
• Internal Calibrated Oscillator
• External and Internal interrupt Source
• Six Sleep Modes: Idle, ADC Noise Reduction, Power- save, Power- down, Standby, and Extended Standby
• I/O and Packages
• 54/86 Programmable I/O Lines (ATmega1281/2561, ATmega640/1280/2560)
• 64- pad QFN/MLF, 64- lead TQFP (ATmega1281/2561)
• 164- head TQFP, 164- lead SGS4A (ATmega640/1280/2560)
• RoHS/Fully Green
• Temperature Range: - 40°C to 85°C Industrial
• Ultra-Low Power Consumption
• Active Mode: 1MHz, 1.8V: 500uA
• Power-down Mode: 0.1uA at 1.8V
• Speed Grade:
• ATmega640V/ATmega1280V/ATmega1281V: 0 - 4MHz @ 1.8V - 5.5V, 0 - 8MHz @ 2.7V - 5.5V
• ATmega2560V/ATmega2561V: 0 - 2MHz @ 1.8V - 5.5V, 0 - 8MHz @ 2.7V - 5.5V
• ATmega2560: 0 - 2MHz @ 2.7V - 5.5V, 0 - 8MHz @ 2.7V - 5.5V
• ATmega1281: 0 - 8MHz @ 2.7V - 5.5V, 0 - 16MHz @ 4.5V - 5.5V
• ATmega640/1280/2560: 0 - 16MHz @ 4.5V - 5.5V