ATXMEGA64D4-MHR

Overview

The ATXMEGA64D4-MHR is an 8/16-bit microcontroller from the AVR XMEGA D4 family, manufactured by Microchip Technology. It features 64 KB of in-system self-programmable flash memory, 2 KB of EEPROM, and 4 KB of internal SRAM. The device operates within a supply voltage range of 1.6 V to 3.6 V and supports clock frequencies up to 32 MHz when powered at 2.7 V or higher. It is housed in a 44-pad VQFN/QFN package with 34 programmable I/O pins.

Feature Summary

• Supports capacitive touch sensing via QTouch library integration for buttons, sliders, and wheels
• Includes a four-channel event system for hardware-based peripheral signaling without CPU intervention
• Features high-resolution timer/counters with advanced waveform extensions for precise control applications

Applications

• Industrial control systems
• Building and climate control units
• Utility metering devices
• Medical equipment

Procurement Notes

Verify the specific ordering code against official Microchip documentation to ensure compatibility with the required package type and temperature range. Confirm that the tape and reel packaging designation matches the intended automated assembly process requirements for the production line.

Selection Notes

Select this component for designs requiring low-power operation combined with high-performance processing capabilities. The architecture allows optimization of power consumption versus processing speed, making it suitable for battery-powered applications needing fast wake-up times and extensive memory resources.

Part Context

This device belongs to the AVR XMEGA D4 microcontroller family, which utilizes picoPower technology to scale low-power characteristics across different memory sizes. The family is designed to provide true low-power capabilities while maintaining high performance through single-cycle instruction execution.

Replacement Considerations

ATXMEGA64D4-AUR