Microchip Technology ATXMEGA256A3BU-AUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.84 | $8.84 |
| 15+ | $8.57 | $128.55 |
| 25+ | $8.38 | $209.50 |
| 50+ | $7.91 | $395.50 |
| 100+ | $6.98 | $698.00 |
| N+ | $1.40 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® XMEGA® A3BU |
| Packaging | Cut Tape (CT) | NULL |
| Core Processor | AVR |
| Core Size | 8/16-Bit |
| Speed | 32MHz |
| Connectivity | I2C, IrDA, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Number of I/O | 47 |
| Program Memory Size | 256KB (128K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 4K x 8 |
| RAM Size | 16K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.6V ~ 3.6V |
| Data Converters | A/D 16x12b; D/A 2x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-TQFP (14x14) |
| Package / Case | 64-TQFP |
| ROHS |  |
The Microchip ATXMEGA256A3BU-AUR is a high-performance 8/16-bit AVR microcontroller designed for demanding embedded applications. It combines 256KB of flash memory and 16KB of SRAM with a rich set of peripherals including DMA, PWM, and multiple serial interfaces. Operating from 1.6V to 3.6V and up to 32MHz, it delivers a balance of power efficiency and processing capability. The 64-TQFP package is suitable for compact designs, while the integrated brown-out detection and watchdog timer enhance system reliability.
- High Memory Density: 256KB flash and 16KB SRAM enable complex firmware and data buffering without external memory.
- Efficient Data Transfer: The integrated DMA controller reduces CPU load, improving real-time performance in data-intensive applications.
- Wide Voltage Range: Supports 1.6V to 3.6V, allowing direct battery operation and compatibility with low-voltage sensors.
- Robust Safety Features: Includes BOD, POR, and WDT to prevent system failures in critical environments.
- Compact Packaging: The 64-TQFP package balances pin count with board space, ideal for industrial and portable devices.
Industrial Automation and Control
With its 32MHz AVR core, 256KB flash, and 16KB SRAM, the ATXMEGA256A3BU-AUR can handle complex control loops and real-time monitoring in PLCs and industrial robots. The integrated DMA offloads data transfer tasks, ensuring deterministic response times.
Smart Metering and Energy Monitoring
The low supply voltage range (1.6V-3.6V) and power-saving modes make it ideal for smart meters. Its PWM outputs can drive metering sensors, while the WDT ensures reliable long-term operation in unattended environments.
Portable Medical Devices
Operating at up to 85°C and with low power consumption, this MCU suits wearable health monitors and portable diagnostic tools. The 64-TQFP package allows for compact PCB designs, and the DMA enables efficient sensor data acquisition.
Automotive Body Electronics
Although not AEC-Q100 qualified, its robust feature set (BOD, POR, WDT) and wide voltage range support automotive body control modules like window lifts and lighting systems, where reliability is critical.
Building Automation and HVAC
The MCU can manage multiple temperature and humidity sensors, using its PWM to control fans and dampers. The 256KB flash allows for complex communication stacks (e.g., BACnet) and data logging.
Consumer Electronics and IoT Gateways
With its rich peripheral set and 32MHz speed, it can serve as a hub for sensor fusion in smart home devices, handling protocol conversion and local decision-making without external processors.
- Q: What is the maximum operating frequency of the ATXMEGA256A3BU-AUR?
- A: The device operates at up to 32 MHz, providing high-performance processing for AVR-based applications.
- Q: What is the program memory size?
- A: It features 256KB of in-system programmable flash memory, organized as 128K x 16 bits.
- Q: What is the supply voltage range?
- A: The operating voltage range is 1.6V to 3.6V, suitable for low-power and battery-operated designs.
- Q: What package is available?
- A: This model comes in a 64-pin TQFP package, ideal for space-constrained PCB layouts.
- Q: Does it include DMA and PWM controllers?
- A: Yes, it integrates a DMA controller and multiple PWM channels, along with POR, BOD, and WDT for robust operation.
ATXMEGA256A3BU-AUR.pdf
- Q: What is the maximum operating frequency of the ATXMEGA256A3BU-AUR?
- A: The device operates at up to 32 MHz, providing high-performance processing for AVR-based applications.
- Q: What is the program memory size?
- A: It features 256KB of in-system programmable flash memory, organized as 128K x 16 bits.
- Q: What is the supply voltage range?
- A: The operating voltage range is 1.6V to 3.6V, suitable for low-power and battery-operated designs.
- Q: What package is available?
- A: This model comes in a 64-pin TQFP package, ideal for space-constrained PCB layouts.
- Q: Does it include DMA and PWM controllers?
- A: Yes, it integrates a DMA controller and multiple PWM channels, along with POR, BOD, and WDT for robust operation.
