ATMEGA2560-16AUR

Product Overview

The Microchip Technology ATMEGA2560-16AUR is an 8-bit AVR ATmega microcontroller for embedded control applications. It provides 256KB (128K x 16) of FLASH program memory, 8K x 8 of RAM, and 4K x 8 of EEPROM, with a 16MHz speed and an internal oscillator. The device uses a 100-TQFP (14x14) surface-mount package and offers 86 I/O pins. Connectivity includes EBI/EMI, I2C, SPI, and UART/USART interfaces, while peripherals include PWM, a watchdog timer, power-on reset, and brown-out detect/reset. The supply range is 4.5V to 5.5V, and the operating temperature range is -40°C to 85°C (TA).

Key Features

• 8-bit AVR core with 16MHz speed
• 256KB (128K x 16) FLASH program memory
• 8K x 8 RAM and 4K x 8 EEPROM
• 86 I/O pins
• EBI/EMI, I2C, SPI, and UART/USART connectivity
• PWM, watchdog timer, power-on reset, and brown-out detect/reset peripherals
• 16x10b A/D converter capability
• Internal oscillator
• 4.5V to 5.5V supply range
• 100-TQFP (14x14) surface-mount package

Applications

• Embedded control systems requiring multiple I/O pins and serial communication interfaces
• Analog measurement using the 16x10b A/D converter capability
• Motor and LED control using PWM
• Parameter storage using EEPROM and data handling using RAM
• Interface bridge functions using I2C, SPI, UART/USART, or EBI/EMI connections

Design & Procurement Notes

Designers should map the 100-TQFP package to the PCB layout and confirm that the 4.5V to 5.5V supply range matches the system rail. The 256KB FLASH, 8K x 8 RAM, and 4K x 8 EEPROM should be compared with firmware, buffer, and stored-parameter requirements before code development. The 86 I/O pins, 16x10b A/D converter capability, and EBI/EMI, I2C, SPI, and UART/USART interfaces can be allocated to sensors, actuators, and communication paths. The -40°C to 85°C operating temperature range and surface-mount package should be considered during thermal and assembly planning.