ATXMEGA256A3U-MH

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MCU 8-bit/16-bit AVR RISC 256KB Flash 1.8V/2.5V/3.3V 64-Pin VQFN EP Tray

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ATXMEGA256A3U-MH DataSheet

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ATXMEGA256A3U-MH Details

The ATXMEGA256A3U-MH is a high-performance microcontroller chip from Microchip Technology, designed for embedded systems applications. This device features 256KB Flash memory, 8KB SRAM, and 6KB EEPROM, making it suitable for complex control systems and data processing tasks.

Key Features

  • High-performance 8-bit AVR microcontroller: Offers high processing power and efficient execution of instructions.
  • 256KB Flash memory, 8KB SRAM, and 6KB EEPROM: Provides ample storage for program code, data, and configuration settings.
  • USB full-speed device and host: Enables communication with USB-enabled devices and hosts.
  • 2.4 -3.6V operating voltage: Allows for operation in a wide range of power supply voltages.
  • 32MHz CPU speed: Provides fast execution of instructions and efficient processing.
  • AES, DES, 128- and 256-bit encryption: Offers robust data encryption and decryption capabilities.
  • 44 general-purpose I/O pins: Enables connection to a wide range of peripherals and devices.
  • Event system for real-time peripherals communication: Facilitates efficient communication with peripherals and sensors.
  • Power reduction register for ultra-low power consumption: Allows for optimized power consumption in low-power applications.

Applications

The ATXMEGA256A3U-MH is suitable for a wide range of embedded systems applications, including:

  • Industrial control systems
  • Aerospace and defense systems
  • Medical devices and equipment
  • Automotive systems and components
  • Consumer electronics and appliances

Where to Use

The ATXMEGA256A3U-MH can be used in a variety of applications, including:

  • New product development
  • Upgrade and replacement of existing systems
  • Prototyping and testing
  • Production and manufacturing

How to Use

To use the ATXMEGA256A3U-MH, follow these steps:

  1. Program the microcontroller with your desired application code.
  2. Connect the device to a power supply and any necessary peripherals.
  3. Configure the device's settings and parameters as needed.
  4. Test and validate the device's operation and performance.

Application Circuit

The application circuit diagram for the ATXMEGA256A3U-MH illustrates how to connect the microcontroller to various peripherals and devices. It includes connections for power supply, ground, and communication bus lines, ensuring proper operation and reliable data transmission.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Complementary

The ATXMEGA256A3U-MH can be complemented by other Microchip Technology microcontrollers, such as the ATmega1284P or the ATxmega128A1, which offer similar features and performance.

When selecting complementary devices, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the maximum clock speed supported by the ATXMEGA256A3U-MH?

A: The ATXMEGA256A3U-MH supports a maximum clock speed of 32MHz. For more details, refer to the datasheet for specific operating conditions and limitations.

Q: Can the ATXMEGA256A3U-MH be used in automotive applications?

A: Yes, the ATXMEGA256A3U-MH is suitable for use in automotive applications, offering robust features and performance for demanding environments.

ATXMEGA256A3U-MH

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Program Memory Size (KB) 256 RAM (bytes) 16
Data EEPROM (bytes) 4096 Pin Count ! 64
Operation Voltage Max.(V) 3.6 Operation Voltage Min.(V) 1.6
Timers 0 x 8-bit - 0 x 16-bit Max ADC Resolution (bits) 12
ADC Channels 16 Zero Cross Detect No
Number of Comparators 4 SPI 10 -SPI
I2C 2 -I2C Stand alone PWM 22
Low Power Yes Numerically Controlled Oscillator (NCO) 0
Data Signal Modulator (DSM) 0

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification ATXMEGA256A3U-MH PDF Download

FAQs

What is ATXMEGA256A3U-MH?

The ATXMEGA256A3U-MH is a high-performance 8/16-bit microcontroller from Microchip Technology, featuring the AVR XMEGA architecture. It is designed for applications requiring high computational power, low power consumption, and advanced peripherals, such as industrial control systems, automation, and IoT devices.

How Does ATXMEGA256A3U-MH Work?

The ATXMEGA256A3U-MH operates as a versatile microcontroller with a high-performance CPU, rich set of peripherals, and flexible power-saving modes. It executes program instructions stored in its flash memory, interacts with external devices through various communication interfaces, and controls external components through its I/O pins. The XMEGA architecture provides efficient and fast operation for complex embedded applications.

How Many Pins does ATXMEGA256A3U-MH have and What are the Functions of the Pinout Configuration?

The ATXMEGA256A3U-MH comes in a 64-pin QFN (Quad Flat No-Lead) package. The pinout configuration includes:

  • VCC, GND: Power supply and ground pins, respectively.
  • RESET: Reset input pin for external reset signal.
  • PORTx: General-purpose I/O pins for digital communication and control.
  • USART, SPI, I2C: Serial communication interface pins.
  • ADC: Analog-to-Digital Converter input pins for analog signal acquisition.
  • TWI, TWI, TWI: Two-Wire Interface pins for inter-IC communication.
  • TCC, TCC, TCC: Timer/Counter pins for timing and counting operations.

What are the Pros and Cons of ATXMEGA256A3U-MH?

Pros:

  • High Performance: Features a fast CPU and advanced peripherals for demanding applications.
  • Low Power Consumption: Utilizes power-saving modes for energy-efficient operation.
  • Rich Peripheral Set: Offers a wide range of peripherals for versatile system design.
  • Flexible Clock System: Allows for precise clocking and reduced power consumption.
  • Scalability: Available in different memory sizes and package options for scalability.

Cons:

  • Complexity: The feature-rich architecture may require a learning curve for beginners.
  • Cost: Higher cost compared to simpler microcontrollers for basic applications.
  • External Components: May need additional components for specific functionalities not integrated onboard.

Are There Any Equivalents/Alternatives to ATXMEGA256A3U-MH for Recommendation?

  • The ATSAM4S from Microchip Technology offers a different ARM-based architecture with similar performance levels.
  • Alternatives to the ATXMEGA256A3U-MH include the STM32F4 series from STMicroelectronics and the PIC32 series from Microchip Technology.

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