XMEGA A3: A Versatile Microcontroller

The XMEGA A3 series, a high-performance, low-power family of 8/16-bit microcontrollers from Microchip (formerly Atmel), offers a robust feature set for various applications. While not recommended for new designs due to the availability of the improved XMEGA A3U series, the XMEGA A3 remains a capable option for existing projects.

Memory: In-System Programmable Flash memory with dedicated sections for application code, boot code, and application tables. Lock bits enhance data security.

Performance: Operates at speeds ranging from 0 to 12 MHz at voltages between 1.6V and 3.6V, reaching up to 32 MHz at higher voltages.

Peripherals: Includes a DMA controller, event system, timers, USARTs, a crypto engine, I2C and SPI interfaces, analog-to-digital converters, analog comparators, a real-time counter, and a watchdog timer.

Power Efficiency: Designed for low-power operation, making it suitable for battery-powered applications.

I/O and Packaging: Offers programmable I/O lines and comes in TQFP and QFN packages.

Typical Applications:

Industrial control

Climate control

Hand-held battery devices

Factory automation

Wireless communication (ZigBee)

Power tools

Building control

Motor control

HVAC systems

Board control

Networking

Metering

Appliances (white goods)

Optical applications

Medical devices

Development Resources: