Microchip ATMEGA2560-16AU 8-Bit AVR Microcontroller MCU 16MHz 256KB Flash TQFP-100 Package

ATMEGA2560-16AU Product Overview

The ATMEGA2560-16AU is a high-performance, low-power 8-bit AVR microcontroller from Microchip Technology, housed in a 100-pin TQFP (Thin Quad Flat Package, 14×14mm) surface-mount package. Based on the AVR enhanced RISC architecture, the ATMEGA2560-16AU achieves 16 MIPS throughput at 16MHz by executing instructions in a single clock cycle. It integrates 256KB of In-System Self-Programmable Flash, 8KB SRAM, and 4KB EEPROM. As the core processor of the Arduino Mega 2560 development board, the ATMEGA2560-16AU enjoys widespread recognition and a mature development ecosystem within the global maker community. The ATMEGA2560-16AU supports a supply voltage range of 4.5V to 5.5V and an industrial temperature range of -40℃ to +85℃, with an MSL rating of 3 (168 hours)  and is RoHS compliant.

ATMEGA2560-16AU Key Features

ATMEGA2560-16AU features high‑performance low‑power 8‑bit AVR RISC core, 16MHz clock, 16 MIPS throughput

ATMEGA2560-16AU provides 256KB in‑system programmable Flash, 8KB SRAM, 4KB EEPROM memory

ATMEGA2560-16AU uses TQFP‑100 SMD package, 14×14mm dimension, 86 general‑purpose I/O pins

ATMEGA2560-16AU operating voltage:4.5‑5.5V, industrial temperature range ‑40℃ ~ +85℃

ATMEGA2560-16AU integrates 16‑channel 10‑bit ADC, multi‑channel PWM timer output

ATMEGA2560-16AU supports 4×USART, SPI, I2C interfaces, support JTAG on‑chip debugging

ATMEGA2560-16AU offers ISP in‑system programming, watchdog & brown‑out detection circuit

ATMEGA2560-16AU supports multiple low‑power sleep modes for various embedded control solutions

ATMEGA2560-16AU Application

With its large memory capacity, rich peripheral resources, and mature development ecosystem, the ATMEGA2560-16AU is widely used in the following fields:

Arduino & Open-Source Hardware: ATMEGA2560-16AU is the core processor of the Arduino Mega 2560 R3

Industrial Control & Automation: ATMEGA2560-16AU is used in PLC expansion modules, industrial instruments, motor drive and control

Embedded Systems & IoT: ATMEGA2560-16AU is applied in smart sensors, data acquisition terminals, environmental monitoring

Robotics & Drones: ATMEGA2560-16AU is found in large robots, 3D printers, CNC engraving machines

HMI & Multimedia: ATMEGA2560-16AU supports graphic displays, multimedia devices, portable devices

Education & Prototyping: ATMEGA2560-16AU is used in university electronics courses, graduation projects, research prototypes

Clock & Timing, Imaging & Vision, Sensing & Instrumentation

ATMEGA2560-16AU Advantages
ATMEGA2560-16AU TQFP‑100 SMD package perfect for SMT mass‑production. ATMEGA2560-16AU has sufficient I/O pins to connect multiple peripherals. ATMEGA2560-16AU provides large memory capacity for complex firmware. ATMEGA2560-16AU supports mature AVR open‑source resources. ATMEGA2560-16AU JTAG debug interface simplifies development. ATMEGA2560-16AU offers industrial‑grade temperature for reliable operation. ATMEGA2560-16AU has sufficient stock, great for mass‑production and advanced embedded development

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FAQs:

1. What is the ATMEGA2560-16AU chip?
   ATMEGA2560-16AU is a high-performance 8-bit AVR microcontroller from Microchip in a TQFP-100 package, commonly found on the Arduino Mega 2560 development board.

2. What is the core frequency and throughput?
   ATMEGA2560-16AU runs at a maximum frequency of 16MHz and utilizes an advanced RISC architecture where most instructions execute in a single clock cycle, achieving close to 1 MIPS per MHz.

3. What is the memory capacity?
   ATMEGA2560-16AU features 256KB of Flash, 8KB of SRAM, and 4KB of EEPROM. Endurance rates support 10,000 flash writes and 100,000 EEPROM writes.

4. What package and dimensions does it use?
   ATMEGA2560-16AU uses a 100-pin TQFP package with dimensions of 14x14 mm, a 0.5 mm lead pitch, and a height of approximately 1.05 mm.

5. What are the operating voltage and temperature ranges?
   For ATMEGA2560-16AU, the supply voltage is 4.5V to 5.5V. The industrial temperature range covers -40°C to +85°C.

6. What communication interfaces are available?
   ATMEGA2560-16AU integrates 4 UART/USART, 2 I2C buses, and 1 SPI bus, allowing multiple peripherals to connect without performance loss from software simulation.

7. What applications is it suitable for?
   ATMEGA2560-16AU is ideal for industrial automation, IoT data logging, smart robotics, and environmental monitoring where high memory and I/O count are needed.

8. What is its role in the Arduino ecosystem?
   ATMEGA2560-16AU is the core chip for the Arduino Mega 2560, offering extensive open-source library support for fast development of complex, multi-sensor projects.

9. How is its power consumption?
   ATMEGA2560-16AU supports six low-power modes including Idle, ADC Noise Reduction, Power-down, and Standby. Standby current is extremely low, making it suitable for battery-powered applications.

10. How to program or debug the chip?
    ATMEGA2560-16AU supports JTAG for real-time debugging and programming, as well as In-System Programming via a bootloader. In Arduino IDE, it is typically flashed via serial port.