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ATMEGA2561-16MU ATMEGA2561-16MU is an 8-bit AVR microcontroller from Microchip Technology with 256KB Flash memory, 8KB RAM, and 54 I/O pins. It operates at 16 MHz and is supplied in a 64-QFN package.
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ATMEGA2561-16MU

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
ATMEGA2561-16MU is an 8-bit AVR microcontroller from Microchip Technology with 256KB Flash memory, 8KB RAM, and 54 I/O pins. It operates at 16 MHz and is supplied in a 64-QFN package.
✓ Total Stock: 4,349 pcs

ATMEGA2561-16MU Available from 1 distributor

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ATMEGA2561-16MU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage
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ATMEGA2561-16MU Description

Short technical summary and product information.

The ATMEGA2561-16MU is an 8-bit AVR microcontroller from Microchip Technology featuring a 16 MHz clock speed. It provides 256KB of Flash program memory, 8KB of SRAM, and 4KB of EEPROM, offering ample storage for embedded applications. The device includes 54 general-purpose I/O lines and supports multiple communication interfaces: EBI/EMI, I2C, SPI, and UART/USART. On-chip peripherals include brown-out detection, power-on reset, PWM channels, and a watchdog timer, enhancing system robustness. An internal oscillator simplifies clock generation. The operating voltage range is 4.5V to 5.5V, and the temperature range is -40°C to 85°C, suitable for industrial environments. The part is supplied in a 64-VFQFN exposed pad package (64-QFN, 9x9 mm) for surface mount assembly, with MSL 1 moisture sensitivity.

ATMEGA2561-16MU Quick Information

Product Type: Microcontroller
Canonical Name: Microchip Technology ATMEGA2561-16MU
Subcategory: 8-bit Microcontroller

ATMEGA2561-16MU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATMEGA2561-16MU Features

  • 8-bit AVR core with 16 MHz clock speed.
  • 256KB Flash program memory with 8KB SRAM.
  • 54 general-purpose I/O pins.
  • Supports I2C, SPI, UART, and EBI/EMI connectivity.
  • Includes internal oscillator and brown-out detection.

ATMEGA2561-16MU Applications

  • Suitable for embedded control and automation systems.
  • Ideal for industrial motor control with PWM outputs.
  • Used in communication interfaces via UART, SPI, I2C.
  • Can be applied in sensor data acquisition and processing.
  • Suitable for consumer electronics requiring low-power 8-bit processing.

ATMEGA2561-16MU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the ATMEGA2561-16MU?

4.5V to 5.5V.

What is the package type of the ATMEGA2561-16MU?

64-VFQFN Exposed Pad, also known as 64-QFN (9x9).

What is the operating temperature range?

-40°C to 85°C.

Is the ATMEGA2561-16MU RoHS compliant?

RoHS3 Compliant (unverified, low confidence).

What is the core processor?

AVR 8-bit.

What is the clock speed?

16 MHz.

How many I/O pins are available?

54.

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