This document provides an overview of the high performance, low power, high endurance features of the ATmega640/1280/2560 microcontrollers, including 135 powerful instructions, 32 x 8 general purpose working registers, up to 16MIPS throughput, 2-cycle multiplier, etc.
The ATmega2560 is a low‑power CMOS 8‑bit microcontroller based on the AVR enhanced RISC architecture. It offers up to 16 MHz operation, a rich instruction set, and multiple power‑saving modes, making it suitable for a wide range of embedded applications.
The document includes detailed pin‑out diagrams for TQFP and CBGA packages, descriptions of all I/O ports, and tables summarizing memory sizes, peripheral counts, and electrical characteristics such as operating voltage and temperature range.
| Flash Memory | 64 KB / 128 KB / 256 KB |
|---|---|
| EEPROM | 4 KB |
| SRAM | 8 KB |
| General‑purpose I/O Lines | 54 / 86 |
| ADC Resolution | 10‑bit |
| Number of USARTs | 4 |
| Operating Voltage | 1.8 V – 5.5 V |
| Active Mode Current (1 MHz, 1.8 V) | 500 pA |
| Power‑down Mode Current (1.8 V) | 0.1 pA |
The ATmega2560 provides 256 KB of In‑System Self‑Programmable Flash memory.
The device offers 86 programmable I/O lines in the 100‑pin package.
The microcontroller includes a 10‑bit analog‑to‑digital converter.