Microchip Technology ATXMEGA256A3U-MHR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.59 | $8.59 |
| 15+ | $8.32 | $124.80 |
| 25+ | $8.14 | $203.50 |
| 50+ | $7.68 | $384.00 |
| 100+ | $6.78 | $678.00 |
| N+ | $1.36 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® XMEGA® A3U |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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 | 50 |
| 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-QFN (9x9) |
| Package / Case | 64-VFQFN Exposed Pad |
| ROHS |
The ATXMEGA256A3U-MHR from Microchip is a versatile 8/16-bit AVR microcontroller with 256KB flash and 16KB SRAM. At 32MHz, it offers DMA, PWM, and brown-out detection. Its 1.6V-3.6V supply range and 64-VFQFN package are perfect for low-power, high-density embedded applications.
- Low Voltage Operation: 1.6V enables energy harvesting and single-cell battery use.
- High Code Density: 256KB flash for complex applications.
- DMA Controller: Offloads data movement, improving real-time performance.
- Small Footprint: 64-VFQFN ideal for miniaturized IoT devices.
Wireless Sensor Networks
Low 1.6V operation and DMA support efficient data aggregation in battery-powered Zigbee/Sub-GHz nodes.
Medical Wearables
Its compact 64-VFQFN package and 256KB flash enable continuous health monitoring with complex algorithms.
Smart Agriculture
Robust PWM and WDT handle irrigation control and soil sensor reading in outdoor environments.
Industrial IoT Gateways
DMA and 32MHz AVR core process multiple protocol stacks for edge connectivity.
Energy Harvesting Devices
The 1.6V minimum supply allows direct operation from solar cells or TEG modules.
Security Systems
Large flash supports encryption libraries for access control panels and alarm systems.
- Q: What is the core of ATXMEGA256A3U-MHR?
- A: It uses an 8/16-bit AVR core at 32MHz.
- Q: How much flash memory is included?
- A: It has 256KB of flash.
- Q: What is the voltage range?
- A: It operates from 1.6V to 3.6V.
- Q: What package is this?
- A: It is a 64-VFQFN exposed pad package.
- Q: Does it have DMA?
- A: Yes, it includes a DMA controller.
- Q: What is the core of ATXMEGA256A3U-MHR?
- A: It uses an 8/16-bit AVR core at 32MHz.
- Q: How much flash memory is included?
- A: It has 256KB of flash.
- Q: What is the voltage range?
- A: It operates from 1.6V to 3.6V.
- Q: What package is this?
- A: It is a 64-VFQFN exposed pad package.
- Q: Does it have DMA?
- A: Yes, it includes a DMA controller.

ATXMEGA256A3U-MHR.pdf