Microchip Technology ATXMEGA256A3-MH
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $11.22 | $11.22 |
| 15+ | $10.87 | $163.05 |
| 25+ | $10.63 | $265.75 |
| 50+ | $10.04 | $502.00 |
| 100+ | $8.86 | $886.00 |
| N+ | $1.77 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® XMEGA® A3 |
| Packaging | Tray | |
| Core Processor | AVR |
| Core Size | 8/16-Bit |
| Speed | 32MHz |
| Connectivity | I2C, IrDA, SPI, UART/USART |
| 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 Microchip ATXMEGA256A3-MH is a high-performance 8/16-bit AVR microcontroller with 256KB flash and 16KB RAM, running at 32MHz. It operates from 1.6V to 3.6V, making it perfect for low-power and portable applications. The 64-VFQFN package with exposed pad ensures excellent thermal performance. Integrated DMA, brown-out detection, POR, PWM, and WDT provide a robust feature set. This MCU is ideal for IoT, medical, and industrial sensing applications.
- Ultra-Low Voltage Operation (1.6V): Extends battery life in portable devices, reducing power consumption.
- DMA Controller: Offloads data transfer tasks, freeing the CPU for other operations and improving throughput.
- Large Flash (256KB): Ample space for complex applications and data logging, reducing external memory needs.
- Exposed Pad Package: Enhances heat dissipation, ensuring stable operation under heavy loads.
- Advanced Safety Features: Brown-out detection and WDT prevent system crashes and data corruption.
Battery-Powered IoT Sensors
The 1.6V minimum supply and low-power AVR core enable long battery life. DMA allows sensor data collection without waking the CPU, extending sleep time.
Portable Medical Devices
With 256KB flash, it can store patient data and complex algorithms. The small VFQFN package fits compact wearable designs, and the brown-out detector ensures safe shutdown.
Smart Home Automation
Control lighting and HVAC with PWM outputs. The 32MHz speed handles Zigbee or proprietary RF stacks, while DMA offloads communication buffers.
Industrial Sensor Interfaces
Use the ADC and DMA to sample multiple sensors simultaneously. The wide temperature range (-40 to 85°C) suits factory floor environments.
Consumer Electronics
Power management in portable audio devices benefits from low voltage operation. The 16KB RAM supports audio buffering, and the exposed pad helps heat dissipation.
Automotive Aftermarket
For car alarm systems, the brown-out reset and WDT provide reliable operation under voltage fluctuations. The 3.6V max is compatible with 3.3V logic.
- Q: What is the core architecture of the ATXMEGA256A3-MH?
- A: It uses the AVR core, operating at up to 32MHz, with 256KB flash and 16KB RAM.
- Q: What voltage does it require?
- A: It operates from 1.6V to 3.6V, ideal for low-power battery applications.
- Q: Does it support DMA?
- A: Yes, it includes a DMA controller for efficient data transfer without CPU intervention.
- Q: What package is this variant?
- A: It comes in a 64-VFQFN exposed pad package, which aids thermal dissipation.
- Q: What safety features are integrated?
- A: It has Brown-out Detect/Reset, POR, PWM, and WDT for robust operation.
ATXMEGA256A3-MH.pdf
- Q: What is the core architecture of the ATXMEGA256A3-MH?
- A: It uses the AVR core, operating at up to 32MHz, with 256KB flash and 16KB RAM.
- Q: What voltage does it require?
- A: It operates from 1.6V to 3.6V, ideal for low-power battery applications.
- Q: Does it support DMA?
- A: Yes, it includes a DMA controller for efficient data transfer without CPU intervention.
- Q: What package is this variant?
- A: It comes in a 64-VFQFN exposed pad package, which aids thermal dissipation.
- Q: What safety features are integrated?
- A: It has Brown-out Detect/Reset, POR, PWM, and WDT for robust operation.
