ATXMEGA256A3U-AU Datasheet PDF - Microchip

The ATXMEGA256A3U-AU is a high performance, low power 8/16bit AVR XMEGA A3U microcontroller in 64 pin TQFP package. This device achieves throughputs approaching 1MIPS per MHz by executing powerful instructions in a single clock cycle. This allows system designer to optimize power consumption versus processing speed. The device has seven 16bit timer/counters, 16bit real time counter (RTC) with separate oscillator, two sixteen channel, 12bit ADC, one two channel, 12bit DAC, four analogue comparators and programmable watchdog timer with separate on-chip ultra low power oscillator.

● Maximum operating frequency of 32MHz

● 256KB of in-system self programmable flash

● 4KB EEPROM and 16KB internal SRAM memory

● Operating voltage range from 1.6V to 3.6V

● 50 programmable I/O pins

● JTAG (IEEE 1149.1 compliant) and PDI (program and debug) interfaces

● QTouch library support

● 16bit real time counter (RTC) with separate oscillator

● USB 2.0, seven USART, two I2C and SMBus interfaces

● Operating temperature range from -40°C to 85°C