Microchip Technology

ATXMEGA256A3BU-AU  

Microcontrollers

The ATXMEGA256A3BU-AU is a microcontroller unit (MCU) manufactured by Microchip Technology. This particular model belongs to the ATxmega family of MCUs, which are based on the AVR microcontroller architecture.

Description:

The ATXMEGA256A3BU-AU is a high-performance, low-power 8-bit MCU with a maximum operating frequency of 32 MHz. It features 256 KB of In-System Programmable (ISP) Flash memory, 16 KB of In-System Programmable (ISP) EEPROM, and 16 KB of SRAM. The MCU is housed in a 100-pin QFN (Quad Flat No-leads) package.

Features:

1. 8-bit AVR core with 32 general-purpose registers (GPRs)
2. Up to 32 MHz operating frequency
3. 256 KB of ISP Flash memory
4. 16 KB of ISP EEPROM
5. 16 KB of SRAM
6. Event System for low-power, high-performance event-driven design
7. Peripheral Touch Controller for capacitive touch sensing
8. USB 2.0 interface with Host, Device, and OTG support
9. 21 general-purpose I/O (GPIO) lines with support for external interrupts, PWM, and input/output modes
10. 5-channel 10-bit Analog-to-Digital Converter (ADC)
11. 2-channel 8-bit Digital-to-Analog Converter (DAC)
12. 4-channel Comparator with Voltage Reference (COMP)
13. 8-bit Time Counter with Alarm (TCA)
14. Real-Time Clock (RTC) with Alarm
15. 3-channel 16-bit Timer/Counter (TC)
16. Serial Communication Interfaces: USART, SPI, and TWI
17. CRC-32 support for error detection and correction
18. JTAG and debugWIRE interfaces for debugging and programming
19. Core Independent Peripherals (CIP) for enhanced peripheral control
20. Active, Power-down, and Standby sleep modes for energy efficiency

Applications:

The ATXMEGA256A3BU-AU is suitable for a wide range of applications due to its high performance, low power consumption, and versatile features. Some potential applications include:

1. Industrial control systems
2. Motor control applications
3. Human-Machine Interfaces (HMIs)
4. Smart grid devices
5. Medical equipment
6. Portable electronic devices
7. Home automation systems
8. Automotive control systems
9. Wireless sensor networks
10. Security systems

The ATXMEGA256A3BU-AU's combination of processing power, memory, and peripheral options make it a versatile choice for embedded systems designers looking for a high-performance, low-power MCU.

ATXMEGA256A3BU-AU Documents

Download datasheets and manufacturer documentation for ATXMEGA256A3BU-AU

PCN Assembly/Origin :

ATXMEGA1xx 24/Nov/2023      

Datasheets :

ATxmega256A3BU Datasheet      

PCN Packaging :

Transfer to Microchip/Label/Pkg 5/Sep/2016       MBB/Label Chgs 16/Nov/2018      

Design Resources :

ATxmega256A3B Development Tool Selector      

HTML Datasheet :

ATxmega256A3BU Datasheet      

PCN Design/Specification :

Marking Chgs 11/Jul/2017       Copper Bonding Wire 17/Oct/2013      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH