ATXMEGA64C3-ANR

Overview

The ATXMEGA64C3-ANR is an 8/16-bit microcontroller from the AVR XMEGA C3 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 on a power supply ranging from 1.6V to 3.6V and supports clock frequencies up to 32MHz when powered at 2.7V or higher. It is housed in a 64-lead TQFP package with an industrial temperature range of -40°C to +105°C. Key peripherals include a USB 2.0 full-speed interface, three USARTs, two TWIs, two SPIs, a 16-channel 12-bit ADC, and five 16-bit timer/counters.

Feature Summary

• Integrated USB 2.0 full-speed device interface with 32 endpoints for flexible connectivity.
• Advanced waveform extension and high-resolution timer/counters for precise control applications.
• Capacitive touch sensing support via QTouch library integration for user interface design.
• Four-channel event system enabling peripheral-to-peripheral communication without CPU intervention.

Applications

• Industrial control systems requiring robust communication interfaces.
• Building and climate control units with display capabilities.
• Utility metering devices with RF or ZigBee connectivity.
• USB-enabled consumer electronics and white goods.
• Medical equipment and optical instruments needing low-power operation.

Procurement Notes

Verify the specific ordering suffix 'ANR' corresponds to the 64-lead TQFP package and industrial temperature grade (-40°C to +105°C) as documented in the official datasheet. Confirm that the 'R' suffix indicates tape and reel packaging if automated assembly is required. Ensure compatibility with existing PCB footprints for the TQFP-64 form factor before finalizing procurement orders.

Selection Notes

Select this component when application requirements include integrated USB connectivity alongside standard serial interfaces like USART and SPI. The industrial temperature rating makes it suitable for environments exceeding standard commercial limits. Consider the 64-pin count and I/O availability against board space constraints. Evaluate the need for capacitive touch sensing features supported by the included QTouch library during the design phase.

Part Context

This part belongs to the AVR XMEGA C3 series, designed for high-performance, low-power embedded applications. The C3 variant specifically emphasizes enhanced timer capabilities and USB integration compared to earlier A-series devices. It utilizes the same AVR RISC core architecture found across the XMEGA family, ensuring software compatibility with other devices in the ecosystem while offering distinct peripheral configurations.

Replacement Considerations

ATXMEGA64C3-AUR

FAQ

What is the maximum operating frequency at 1.6V supply voltage?

At a minimum supply voltage of 1.6V, the device supports operating frequencies up to 12MHz.

Does the ATXMEGA64C3-ANR support capacitive touch sensing?

Yes, the device supports capacitive touch buttons, sliders, and wheels through the Atmel QTouch library.

How many general purpose I/O pins are available?

The device provides 50 programmable general purpose I/O pins.