ATMEGA2560-16AU

Product Overview

The Microchip Technology ATMEGA2560-16AU is an 8-bit AVR ATmega microcontroller in a 100-TQFP (14x14) surface-mount package. It provides 256KB (128K x 16) of FLASH program memory, 8K x 8 RAM, and 4K x 8 EEPROM, with an operating speed of 16MHz and an internal oscillator. The device supports a 4.5V to 5.5V supply range and an operating temperature range of -40°C to 85°C (TA). It includes 86 I/O pins and connectivity options including EBI/EMI, I2C, SPI, and UART/USART.

Key Features

• 8-bit AVR core with 16MHz operating speed and internal oscillator
• 256KB (128K x 16) FLASH program memory, 8K x 8 RAM, and 4K x 8 EEPROM
• 86 I/O pins for digital interfacing
• EBI/EMI, I2C, SPI, and UART/USART connectivity
• 16-channel 10-bit analog-to-digital conversion
• PWM outputs, watchdog timer, power-on reset, and brown-out detect/reset
• 4.5V to 5.5V supply range and -40°C to 85°C (TA) operating temperature
• 100-TQFP (14x14) surface-mount package

Applications

• Control systems requiring 86 I/O pins and multiple serial interfaces
• Data acquisition designs using the 16-channel 10-bit analog-to-digital converter
• Control signal generation using PWM outputs
• 8-bit control designs requiring 256KB FLASH program memory

Design & Procurement Notes

When selecting the ATMEGA2560-16AU, account for its 4.5V to 5.5V supply range, 100-TQFP (14x14) surface-mount footprint, and -40°C to 85°C (TA) operating temperature. The 256KB FLASH, 8K x 8 RAM, and 4K x 8 EEPROM should be checked against firmware, runtime variable, and nonvolatile data requirements. The 86 I/O pins, EBI/EMI, I2C, SPI, and UART/USART interfaces support multiple external devices, while the 16-channel 10-bit ADC and PWM outputs support analog measurement and control-signal generation. Brown-out detect/reset, power-on reset, and watchdog timer are included as on-chip peripherals.