ATXMEGA64C3-MH

Overview

The ATXMEGA64C3-MH is an 8/16-bit AVR XMEGA microcontroller featuring a 64KByte In-System Self-Programmable Flash, 2KByte EEPROM, and 4KByte Internal SRAM. It operates at frequencies up to 32MHz from 2.7V and 12MHz from 1.6V within a 1.6V to 3.6V supply range. The device includes a four-channel event system, five 16-bit timer/counters, one USB 2.0 full-speed interface, three USARTs, two TWIs, two SPIs, a 16-channel 12-bit ADC, and two analog comparators. It provides 50 programmable I/O pins in a 64-pad VQFN package.

Feature Summary

• Integrates a high-performance AVR RISC CPU with single-cycle execution and hardware multiplier
• Supports capacitive touch sensing via the QTouch library for buttons, sliders, and wheels
• Features a four-channel event system for peripheral-to-peripheral communication without CPU intervention
• Includes a dedicated USB 2.0 full-speed device interface with 32 configurable endpoints

Applications

• Industrial control systems
• Factory automation equipment
• Building control applications
• Medical devices
• USB connectivity solutions

Procurement Notes

Verify the specific ordering code against the manufacturer's official documentation to ensure correct memory size, package type, and temperature rating. Confirm that the component meets RoHS compliance requirements if necessary for your assembly process. Cross-reference the datasheet revision date to ensure all technical specifications align with current manufacturing standards.

Selection Notes

Select this component when a balance of moderate flash capacity and rich peripheral integration is required. The inclusion of a hardware USB controller and multiple serial interfaces makes it suitable for complex communication tasks. Consider the available sleep modes and power supply range if low-power operation is a critical design constraint.

Part Context

This part belongs to the AVR XMEGA C3 family, which emphasizes high performance and low power consumption. The series utilizes an enhanced RISC architecture optimized for efficient code execution. Devices in this family are designed for embedded applications requiring robust peripheral sets and flexible memory configurations.

Replacement Considerations

The ATXMEGA64C3-AU serves as a pin-compatible alternative using a TQFP package instead of VQFN. Other members of the C3 family, such as the ATXMEGA32C3 or ATXMEGA128C3, offer different memory capacities but share similar peripheral architectures.