ATMega2560 Microcontroller

The ATMega2560 from Atmel is an 8-bit low-powermicrocontrollerthat is found in the popularArduino Mega development board. It is based on the 8-bit AVR RISC architecture and has 256KB flash memory, 8KB SRAM, and 4KB EEPROM. It also has a wide variety of peripherals, including timers, counters, PWM generators, a comparator, and ADCs. It can be clocked up to 16MHz with a 5V supply.

ATMega2560 Pinout Configuration

Pin Number	Pin Name	Description
10, 31, 61, 80	VCC	IC Supply pins
11, 32, 62, 81, 99	GND	IC ground reference pins
98	AREF	Reference supply for ADC
100.	AVCC	Supply pin for analog peripherals
33, 34	XTAL	晶体振荡器引脚
30		Reset pin, active low
2 - 9	PE0 – PE7	GPIO Port E pins
12 – 18, 27	PH0 – PH6, PH7	GPIO Port H pins
19 - 26	PB0 – PB7	GPIO Port B pins
28 – 29, 51 – 52, 70	PG3 – PG4, PG0 – PG1, PG2	GPIO Port G pins
35 - 42	PL0 – PL7	GPIO Port L pins
43 - 50	PD0 – PD7	GPIO Port D pins
53 - 60	PC0 – PC7	GPIO Port C pins
63 – 69, 79	PJ0 – PJ6, PJ7	GPIO Port J pins
71 - 78	PA7 – PA0	GPIO Port A pins
82 - 89	PK7 – PK0	GPIO Port K pins
90 - 97	PF7 – PF0	GPIO Port F pins

Features and Specifications

• 86 programmable IO lines
• Two 8-bit timer/counters, four 16-bit timer/counters
• 16-channel 10-bit ADC
• Four USART
• SPI serial interface
• On-chip analog comparator

Note:Complete technical details can be found in theATMega2560 datasheetgiven at the end of this page.

ATMega2560 Equivalents

ATMega640, ATMega1280

其他微控制器

ATMega328P

How To Use ATMega2560?

The ATMega2560 is an 8-bit AVR microcontroller that comes with 86 programmable GPIO pins, PWM, ADC, and timer peripherals. It can be programmed using Atmel Studio and a dedicated programmer, or using another ATMega microcontroller and using the Arduino development environment. The easiest to use is the Arduino Mega board, which contains the ATMega3560, and can be programmed over USB from the Arduino software.The GPIO pins are also mapped internally to the peripherals like SPI, USART, and SPI.The ATMega2560 uses 5V logic levels, so it might not be compatible with 3.3V sensors and other peripherals. This is not a major limitation, it can be overcome using level shifting circuits.由于其大量GPIO引脚，ATMEGA2560克服了较小的微控制器如Atmega328P的局限性，并允许它与更多的传感器和外围设备进行通信，同时还留下了其他任务的大量GPIO引脚。

Applications

• Embedded electronics control
• Robotics, HID
• Mixed-signal electronics

2D Model and Dimensions

If you are designing a PCB or Perf board with this component then the following picture from the Datasheet will be useful to know its package type and dimensions.