ATXMEGA128A4U-MH Datasheet PDF - Microchip

The ATXMEGA128A4U-MH is a 16-bit low power AVR Microcontroller Unit featuring 128kB self-programming flash program memory, 4kB boot code section, 8kB SRAM, 2048-byte EEPROM, external bus interface, 4-channel DMA controller, 8-channel event system and up to 32MIPS throughput at 32MHz. The AVR CPU combines a rich instruction set with 32 general purpose working registers. All 32 registers are directly connected to the arithmetic logic unit (ALU), allowing two independent registers to be accessed in a single instruction, executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs many times faster than conventional single-accumulator or CISC based microcontrollers.

● High performance

● Non-volatile program and data memories

● 4-channel DMA controller

● 8-channel event system

● Five 16-bit timer/counters

● One USB device interface

● External interrupts on all general purpose I/O pins

● Power-on reset and programmable brown-out detection

● Programmable multilevel interrupt controller

● 5 sleep modes