ATXMEGA128A3U in ATxmega A3U Family
The ATXMEGA128A3U belongs to the Microchip (formerly Atmel) AVR XMEGA A3U sub-family of high-performance, 8/16-bit microcontrollers. Designed for low-power operation and high integration, these MCUs feature a Full-Speed USB 2.0 interface without the need for an external crystal. Built on the AVR RISC architecture, this family provides advanced peripheral functions and the XMEGA Event System to offload the CPU, making it ideal for real-time control and high-bandwidth communication tasks.
Variants in This Sub-Family
Variants within the ATXMEGA128A3U sub-family primarily differ based on their physical package types and thermal ratings. Options include 64-pin TQFP and 64-pad QFN (VQFN) footprints, allowing for flexibility in PCB layout density. While the internal 128KB flash and 8KB SRAM remain constant, different orderable part numbers specify commercial (0°C to 70°C) or industrial (-40°C to +85°C) temperature ranges to suit specific environmental requirements.
