The Microchip ATxmega128A1U 8-bit microcontroller is based AVR® RISC architecture. It operates on 1.6V to 3.6V voltage range. This microcontroller features 128KB of self-programming Flash program memory, 8 KB boot code section, 8 KB SRAM, 2 KB EEPROM, external bus interface, 4-channel DMA controller, 8-channel event system, and up to 32 MIPS throughput at 32 MHz.

Four-channel DMA controller
Eight-channel event system
Eight 16-bit timer/counters
One USB device interface
Eight USARTs with IrDA support for one USART
Four two-wire interfaces with dual address match (I2C and SMBus compatible)
Four serial peripheral interfaces (SPIs)
AES and DES crypto engine
CRC-16 (CRC-CCITT) and CRC-32 (IEEE® 802.3) generator
16-bit real time counter (RTC) with separate oscillator
Two sixteen channel, 12-bit, 2msps Analog to Digital Converters
Two Two-channel, 12-bit, 1msps Digital to Analog Converters
Four Analog Comparators (ACs) with window compare function, and current sources
External interrupts on all general purpose I/O pins
Programmable watchdog timer with separate on-chip ultra low power oscillator
Capacitive touch buttons, sliders and wheels
Power-on reset and programmable brown-out detection
Internal and external clock options with PLL and prescaler
Programmable multilevel interrupt controller
Programming and debug interfaces
Temperature range between -40°C to 85°C
100-ball, 9 x 9 x 1.2mm body, ball pitch 0.80mm, chip ball grid array (CBGA) package