ATXMEGA64B1-AU

Overview

The ATXMEGA64B1-AU is an 8/16-bit AVR XMEGA microcontroller featuring a 32 MHz CPU, 64 KB flash, 4 KB SRAM, and 2 KB EEPROM. It operates at 1.6 V to 3.6 V within a -40°C to 85°C range. Key peripherals include a USB 2.0 interface, two USARTs, AES/DES crypto engine, four-channel event system, two-channel DMA controller, LCD driver, and dual 12-bit ADCs.

Feature Summary

• Integrates a high-performance AVR RISC CPU with single-cycle execution capabilities.
• Includes a dedicated USB 2.0 full-speed device interface for connectivity.
• Features hardware-accelerated AES and DES cryptographic engines.
• Supports capacitive touch sensing via the QTouch library.

Applications

• Industrial control systems
• Building and climate control units
• Utility metering applications

Procurement Notes

Verify the specific package type (TQFP) and temperature grade against project requirements. Confirm that the ordering suffix matches the desired physical form factor. Ensure compatibility with existing programming interfaces such as PDI or JTAG before finalizing procurement.

Selection Notes

Select this component for designs requiring integrated USB connectivity alongside robust cryptographic security features. The inclusion of a built-in LCD driver makes it suitable for display-heavy applications. Evaluate memory sizes to ensure the 64 KB flash and 4 KB SRAM meet software stack demands.

Part Context

This device belongs to the AVR XMEGA B1 family, designed for low-power, high-performance embedded applications. It utilizes Atmel picoPower technology to maintain low sleep currents regardless of memory size. The architecture supports fast wake-up times, making it ideal for battery-powered devices requiring frequent active states.

Replacement Considerations

ATXMEGA64B1-CU