Microchip Technology ATXMEGA128A3U-AUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.46 | $8.46 |
| 15+ | $8.19 | $122.85 |
| 25+ | $8.01 | $200.25 |
| 50+ | $7.57 | $378.50 |
| 100+ | $6.68 | $668.00 |
| N+ | $1.34 | 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 | 128KB (64K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 2K x 8 |
| RAM Size | 8K 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 ATXMEGA128A3U is a high-performance 8/16-bit AVR microcontroller from Microchip. It operates at up to 32MHz with a voltage range of 1.6V to 3.6V. Featuring 128KB flash and 8KB SRAM, it integrates DMA, PWM, and brown-out detection in a compact 64-TQFP package, ideal for demanding embedded applications.
- High efficiency: 32MHz AVR core delivers 1 MIPS/MHz for responsive processing.
- Low power: 1.6V operation reduces energy consumption in portable devices.
- Data throughput: DMA controller enables background data movement without CPU intervention.
- Reliability: Brown-out detect and watchdog timer ensure stable operation.
- Compact integration: 64-TQFP package with rich peripherals saves board space.
Industrial Control Systems
With 128KB flash and 8KB SRAM, it handles complex control loops and communication protocols at 32MHz.
Battery-Powered IoT Sensors
Operating from 1.6V, it extends battery life while maintaining performance for periodic sensor readings.
Motor Control
Built-in PWM channels and DMA enable smooth, low-latency motor drive waveforms.
Data Acquisition Systems
The DMA controller offloads ADC data transfer, freeing the CPU for processing.
Portable Medical Devices
Low power consumption and brown-out detection ensure reliable operation in critical health monitoring.
Smart Meters
Robust WDT and POR features provide reliable long-term operation in utility environments.
- Q: What is the operating voltage range?
- A: 1.6V to 3.6V, suitable for battery-powered designs.
- Q: What is the maximum clock speed?
- A: 32MHz at full voltage range.
- Q: Does it support DMA?
- A: Yes, it includes a DMA controller for efficient data transfer.
- Q: What package is available?
- A: 64-TQFP package.
- Q: What is the program memory size?
- A: 128KB of in-system programmable flash.
- Q: What is the operating voltage range?
- A: 1.6V to 3.6V, suitable for battery-powered designs.
- Q: What is the maximum clock speed?
- A: 32MHz at full voltage range.
- Q: Does it support DMA?
- A: Yes, it includes a DMA controller for efficient data transfer.
- Q: What package is available?
- A: 64-TQFP package.
- Q: What is the program memory size?
- A: 128KB of in-system programmable flash.

ATXMEGA128A3U-AUR.pdf