ATmega2560 Datasheet – 8-bit Microcontroller – Atmel

Part Number: ATmega2560, ATmega2560-16AU

Function : 8-bit Atmel Microcontroller with 16/32/64KB In-System Programmable Flash

Package: TQFP 100,  CBGA 100 Type

Manufacturer: ATmel




The ATmega2560 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 /  ATmega2560 / 2561 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

The high-performance, low-power Microchip 8-bit AVR RISC-based microcontroller combines 256 KB ISP flash memory, 8 KB SRAM, 4 KB EEPROM, 86 general purpose I/O lines, 32 general purpose working registers, real-time counter, six flexible timer/counters with compare modes, PWM, four USARTs, byte-oriented Two-Wire serial interface, 16-channel 10-bit A/D converter, and a JTAG interface for on-chip debugging.






1. High Performance, Low Power Atmel AVR® 8-Bit Microcontroller

2. Advanced RISC Architecture
– 135 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

3. High Endurance Non-volatile Memory Segments
– 64K/128K/256KBytes 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

4. In-System Programming by On-chip Boot Program

5. True Read-While-Write Operation
– Programming Lock for Software Security

6. Endurance: Up to 64Kbytes Optional External Memory Space • Atmel® QTouch® library support
– Capacitive touch buttons, sliders and wheels
– QTouch and QMatrix acquisition
– Up to 64 sense channels


Ordering Information



Reference Site:




ATmega2560 Datasheet PDF


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