ATXMEGA64A4U-CU

Overview

The ATXMEGA64A4U-CU is an 8/16-bit microcontroller from the AVR XMEGA A4U family, manufactured by Microchip Technology. It features 64KB of in-system self-programmable flash memory, 2KB of EEPROM, and 4KB of internal SRAM. The device operates within a voltage range of 1.6V to 3.6V and supports clock frequencies up to 32MHz when powered at 2.7V or higher. It is housed in a 49-ball VFBGA package (49C2) with dimensions of 5.0 x 5.0 x 1.0mm and a 0.65mm pitch. The component includes 34 programmable I/O pins and supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a four-channel DMA controller and an eight-channel event system for efficient data handling without CPU intervention.
• Includes a USB 2.0 full-speed device interface compliant with standard specifications, supporting flexible endpoint configuration.
• Features high-performance peripherals such as five 16-bit timer/counters, two USARTs with IrDA support, and cryptographic engines for AES and DES.

Applications

• Industrial control systems
• USB connectivity devices
• Factory automation equipment

Procurement Notes

Verify the specific ordering suffix 'CU' corresponds to the 49-ball VFBGA package type during procurement. Confirm that the required quantity aligns with the manufacturer's standard tray packaging specifications for this package variant. Ensure compatibility with the specified 1.6V to 3.6V operating voltage range for the target application design.

Selection Notes

Select this component when a balance of moderate program memory size and extensive peripheral integration is required. The VFBGA package is suitable for applications needing compact board space with fine-pitch interconnects. Consider the 32MHz maximum operating frequency and the availability of hardware crypto engines if security features are necessary for the design.

Part Context

This part belongs to the AVR XMEGA A4U series, which utilizes the AVR enhanced RISC architecture to achieve high throughput. The A4U series is characterized by its low power consumption capabilities and rich peripheral set, including multiple communication interfaces and analog converters. It serves as a cost-effective solution for embedded applications requiring efficient processing and robust connectivity options.

Replacement Considerations

The ATXMEGA64A4U-AUR is a tape and reel alternative within the same electrical specification and package family. Other members of the ATxmega64A4U series may offer different package options but share identical core functionality.

FAQ

What is the maximum operating frequency for the ATXMEGA64A4U-CU?

The device supports a maximum clock frequency of 32MHz when the supply voltage is 2.7V or higher.

Does the ATXMEGA64A4U-CU include hardware encryption capabilities?

Yes, it integrates both AES and DES cryptographic engines for secure data processing.