5 V sensors, shields and legacy peripherals
5.0 V I/O drives 5 V logic directly — no level shifting.
Engineering inference
Arduino S.r.l.
Arduino Mega 2560 Rev3
Arduino Mega 2560 Rev3: ATmega2560 (16 MHz AVR, 256 KB flash, 8 KB SRAM, 4 KB EEPROM) at 5 V logic, 54 digital I/O (15 PWM), 16 analog inputs, 4 hardware UARTs, I2C, SPI, ATmega16U2 USB-serial, USB-B + DC jack, 101-style Mega form factor with 4 mounting holes — the classic many-I/O robot controller.
A000067Development boardPrice$49.90Arduino Store (USA) · in stock
Buy at Arduino Store (USA) Board essentials
Facts about the complete product. Unknown values remain open design questions.
- Exposed GPIO
- 54
- Board I/O voltage
- 5 V
- Board flash capacity
- 256 KiB
- Board SRAM capacity
- 8 KiB
- Board operating range
- -40 to 85 °C
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
Learning and fast prototyping
Programs from Arduino IDE, Arduino Cloud.
Engineering inferenceInside this board
The board is the parent product. Each chip has its own memory, pins, capabilities and thermal limits.
main processor
ATmega2560-16AU
Microchip (Atmel)
e196f7f8-80a6-548f-aa3e-91735d1e6eb0--mcu- Architecture
- AVR 8-bit
- Documented clock
- 16 MHz
- Chip / in-package flash
- 256 KiB
- On-chip SRAM
- 8 KiB
usb uart bridge
ATmega16U2
Microchip (Atmel)
e196f7f8-80a6-548f-aa3e-91735d1e6eb0--ic4ldo regulator
5V linear regulator (part not named)
unspecified
e196f7f8-80a6-548f-aa3e-91735d1e6eb0--ic1FAQ
Arduino Mega 2560 Rev3 questions
What microcontroller does the Arduino Mega 2560 Rev3 use?
The Arduino Mega 2560 Rev3 is built around the ATmega2560-16AU, alongside ATmega16U2, 5V linear regulator (part not named).
How many GPIO pins does the Arduino Mega 2560 Rev3 have?
54 GPIO pins are exposed. Xirkit documents 96 board pins, 78 of them with pin-level electrical limits.
Are the Arduino Mega 2560 Rev3 I/O pins 5 V tolerant?
Yes, the documented I/O pins are 5 V tolerant. Input-high threshold: 3–5.5 V.
How much current can a Arduino Mega 2560 Rev3 GPIO pin source?
Documented output-high current per pin: ≤ 40 mA. Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.
What voltage powers the Arduino Mega 2560 Rev3?
Supply range 4.5–12 V. Power inputs: VIN (7–12 V), AREF (4.5–5.5 V).
How much does the Arduino Mega 2560 Rev3 cost?
From $49.9 at Arduino Store (USA). Prices are observed unit prices before tax and shipping.
What are the Arduino Mega 2560 Rev3 dimensions?
99 × 53 mm. A STEP model is available for enclosure fit checks.
Which interfaces does the Arduino Mega 2560 Rev3 support?
nc, control, adc, gpio, jtag, interrupt, i2c, analog, pwm, led, comparator, other, uart, ext_memory, timer, spi, debug, usb.
How do I program the Arduino Mega 2560 Rev3?
Supported frameworks: Arduino IDE, Arduino Cloud.
Where does this Arduino Mega 2560 Rev3 data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.
Data & sources
Where these values come from
- Arduino Mega 2560 Rev3 datasheet — Arduino S.r.l.
- Arduino Store (USA) listing