Arduino MEGA 2560 Product Reference Manual

Arduino® MEGA 2560 Rev3
2 / 18 Arduino® MEGA 2560 Rev3 Modified: 15/12/2021
Features
ATmega2560 Processor
Up to 16 MIPS Throughput at 16MHz
256k bytes (of which 8k is used for the bootloader)
4k bytes EEPROM
8k bytes Internal SRAM
32 × 8 General Purpose Working Registers
Real Time Counter with Separate Oscillator
Four 8-bit PWM Channels
Four Programmable Serial USART
Controller/Peripheral SPI Serial Interface
ATmega16U2
Up to 16 MIPS Throughput at 16 MHz
16k bytes ISP Flash Memory
512 bytes EEPROM
512 bytes SRAM
USART with SPI master only mode and hardware flow control (RTS/CTS)
Master/Slave SPI Serial Interface
Sleep Modes
Idle
ADC Noise Reduction
Power-save
Power-down
Standby
Extended Standby
Power
USB Connection
External AC/DC Adapter
I/O
54 Digital
16 Analog
15 PWM Output

Arduino MEGA 2560 Specifications

General

Microcontroller	ATmega2560
Operating Voltage	5V
Input Voltage (recommended)	7-12V
Input Voltage (limit)	6-20V
Digital I/O Pins	54
PWM Channels	15
Analog Input Pins	16
DC Current per I/O Pin	20 mA
DC Current for 3.3V Pin	50 mA
Flash Memory	256 KB of which 8 KB used by bootloader
SRAM	8 KB
EEPROM	4 KB
Clock Speed	16 MHz
LED_BUILTIN	13
Length	101.52 mm
Width	53.3 mm
Weight	37 g