ATMEGA2560-16AU Microcontroller: Features, Pinout, and Datasheet

ATMEL Corporation's ATMEGA2560-16AU is an  AVR  8-bit high-performance low-power microcontroller. The ATMEGA2560-16AU delivers throughputs approaching 1 MIPS per MHz by executing strong instructions in a single clock cycle, allowing the system designer to optimize power consumption versus processing performance. The ATMEGA2560-16AU is a microcontroller with  RISC  (Reduced Instruction Set Computer) architecture and 256kB of flash memory. There are additionally 4kB of EEPROM, 8kB of internal SRAM, and 86  GPIO  lines on the microcontroller IC. Three adjustable timers/counters, serial USART,  SPI  port, 10-bit ADC, and five programmable power-saving modes are also included in the device. 1.8V to 5.5V is the operating voltage range. The suffix A indicates that the microcontroller is packaged in a  TQFP  package, while the U indicates that it has an "industrial" temperature range.

The following figure is ATMEGA2560-16AU Pinout.

Pinout

The following figures show ATMEGA2560-16AU Symbol, Footprint and 3D Model.

Symbol

Footprint

3D Model

• High Performance, Low Power AVR®  8-Bit  Microcontroller

• 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

• 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

 • In-System Programming by On-chip Boot Program

 • True Read-While-Write Operation

– Programming Lock for Software Security

 • Endurance: Up to 64Kbytes Optional External Memory Space

• QTouch® library support

– Capacitive touch buttons, sliders and wheels

– QTouch and QMatrix acquisition

– Up to 64 sense channels

• JTAG (IEEE® std. 1149.1 compliant) Interface

– Boundary-scan Capabilities According to the  JTAG  Standard

– Extensive On-chip Debug Support

– Programming of Flash, EEPROM,  Fuses , and Lock Bits through the JTAG Interface

• Peripheral Features

– Two 8-bit  Timer /Counters with Separate Prescaler and Compare Mode

– Four 16-bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode

– Real Time Counter with Separate Oscillator

– Four 8-bit PWM Channels

– Six/Twelve PWM Channels with Programmable Resolution from 2 to 16 Bits

(ATmega1281/2561, ATmega640/1280/2560)

– Output Compare Modulator

– 8/16-channel, 10-bit  ADC  (ATmega1281/2561, ATmega640/1280/2560)

– Two/Four Programmable Serial USART (ATmega1281/2561, ATmega640/1280/2560)

– Master/Slave SPI Serial Interface

– Byte Oriented 2-wire Serial Interface

– Programmable Watchdog Timer with Separate On-chip Oscillator

– On-chip Analog Comparator

– Interrupt and Wake-up on Pin Change

• Special Microcontroller Features

– Power-on Reset and Programmable Brown-out Detection

– Internal Calibrated Oscillator

– External and Internal Interrupt Sources

– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby,

and Extended Standby

• I/O and Packages

– 54/86 Programmable  I/O  Lines (ATmega1281/2561, ATmega640/1280/2560)

– 64-pad  QFN /MLF, 64-lead  TQFP  (ATmega1281/2561)

– 100-lead TQFP, 100-ball CBGA (ATmega640/1280/2560)

– RoHS/Fully Green

• Temperature Range:

– -40°C to 85°C Industrial

• Ultra-Low Power Consumption

– Active Mode: 1MHz, 1.8V: 500µA

– Power-down Mode: 0.1µA at 1.8V

• Speed Grade:

– ATmega640V/ATmega1280V/ATmega1281V:

 • 0 - 4MHz @ 1.8V - 5.5V, 0 - 8MHz @ 2.7V - 5.5V

– ATmega2560V/ATmega2561V:

 • 0 - 2MHz @ 1.8V - 5.5V, 0 - 8MHz @ 2.7V - 5.5V

– ATmega640/ATmega1280/ATmega1281:

 • 0 - 8MHz @ 2.7V - 5.5V, 0 - 16MHz @ 4.5V - 5.5V

– ATmega2560/ATmega2561:

 • 0 - 16MHz @ 4.5V - 5.5V

The following figure is ATMEGA2560-16AU Functional Block Diagram.

Functional Block Diagram

The AVR® core has 32 general-purpose working registers and a large instruction set. The Arithmetic Logic Unit (ALU) is directly coupled to all 32 registers, allowing two independent registers to be accessed in a single instruction executed in one clock cycle. The resulting architecture is more code efficient than traditional CISC microcontrollers, with throughputs up to ten times faster.

Microcontrollers are employed in a wide variety of applications and circuits. The control of  DC  motors is one of the most prevalent uses for microcontrollers. Because microcontrollers cannot provide enough power for the motors to run, H-bridges or motor driver ICs are used in conjunction with microcontrollers to control DC motors. Because the ATMEGA2560 microcontroller has PWM channels, it is possible to operate motors using  PWM . A DC motor control application circuit based on the ATMEGA2560 microcontroller is shown below.

Application Circuit

• Camera Systems

• Security Alarms

• Washing Machines

• Temperature Control Systems

• Building Automation Systems

• Motor Control Circuits

• Instrumentation Devices

• Industrial Control Systems

• Robot Systems

• IC Testing Equipment

• GPS Tracking Applications

• GSM-based Automation Systems

• RFID Based Identification Systems

• Kitchen Appliances

The following figure is ATMEGA2560-16AU Package.

Package

Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, delivering low-risk product development, reduced overall system cost, and faster time to market to thousands of customers across the world. Microchip, based in Chandler, Arizona, provides excellent technical support as well as consistent delivery and quality.