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Product Detailed Parameters
- Description：IC MCU 8/16BIT 64KB FLASH 44TQFP
- Series：AVR® XMEGA® A4U
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：34
- Program Memory Size：64KB (32K x 16)
- Program Memory Type：FLASH
- EEPROM Size：2K x 8
- RAM Size：4K x 8
- Voltage - Supply (Vcc/Vdd)：1.6V ~ 3.6V
- Data Converters：A/D 12x12b; D/A 2x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：44-TQFP (10x10)
- Package / Case：44-TQFP
- Grade：-
- Qualification：-
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Overview
The ATXMEGA64A4U-AUR is an 8/16-bit microcontroller from the AVR XMEGA A4U family, manufactured by Microchip Technology. It features a 44-lead TQFP package and operates within a supply voltage range of 1.6V to 3.6V. The device includes 64KB of in-system self-programmable flash memory, 2KB of EEPROM, and 4KB of internal SRAM. It supports a maximum clock frequency of 32MHz and offers 34 programmable I/O pins.
Feature Summary
- Integrates a four-channel DMA controller and an eight-channel event system for efficient data handling.
- Includes a USB 2.0 full-speed device interface with up to 32 configurable endpoints.
- Features AES and DES cryptographic engines alongside CRC generators for secure communications.
- Supports capacitive touch sensing via the QTouch library for user interface applications.
Applications
- Industrial control systems
- USB connectivity devices
- Low power battery applications
Procurement Notes
Verify the specific ordering suffix 'AUR' corresponds to tape and reel packaging requirements. Confirm that the component meets RoHS directives and halide-free specifications as indicated in official documentation. Ensure compatibility with the 44-lead TQFP footprint during PCB design validation.
Selection Notes
Select this model when 64KB of program memory and integrated USB capabilities are required. Consider the 1.6V to 3.6V operating range for low-voltage designs. Evaluate the 32MHz processing speed against application latency needs. Verify package availability matches assembly line constraints.
Part Context
This component belongs to the AVR XMEGA A4U series, which utilizes an enhanced RISC architecture for high performance at low power. The series provides read-while-write flash capabilities and multiple sleep modes to optimize energy consumption. It serves as a versatile solution for embedded applications requiring robust peripheral integration.
Replacement Considerations
ATXMEGA64A4U-AU (Tray Packaging)
FAQ
What programming interface does the ATXMEGA64A4U-AUR use?
It uses the Program and Debug Interface (PDI), a fast two-pin interface for programming and debugging.
Does the device support capacitive touch sensing?
Yes, it supports capacitive touch buttons, sliders, and wheels through the free QTouch library.
