ATXMEGA256D3-AU 8/16-bit ATMega AVR® microcontroller, 256 KB, 32 MHz, TQFP-64

Description The high-performance, low-power 8/16-bit AVR XMEGA microcontroller combines 256KB ISP flash memory (8KB boot code section) with read-while-write capabilities, 4KB EEPROM, 16KB SRAM, a four-channel event system, a programmable multi-level interrupt controller, 50 general purpose I/O lines, a 16-bit real time counter, five flexible 16-bit timer/counters with compare modes and PWM, three USARTs, two 2-wire interfaces, two serial peripheral interfaces, one 16-channel/12-bit A/D converter with optional differential input with programmable gain, two analog comparators with window mode, a programmable watchdog timer with separate internal oscillator, accurate internal oscillators with PLL and prescaler, and a programmable brown-out detection. The Program and Debug Interface (PDI), a fast 2-pin interface for programming and debugging, is available. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

Features - Program Memory Type: Flash - Program Memory Size (KB): 256 - CPU Speed (MIPS/DMIPS): 32 - SRAM (KB): 16 - Data EEPROM/HEF (bytes): 4096 - Digital Communication Peripherals: 3-UART, 5-SPI, 2-I2C - Capture/Compare/PWM Peripherals: 18 Input Capture, 18 CCP, 18 PWM - Number of Comparators: 2 - Temperature Range (°C): -40 to 85 - Operating Voltage Range (V): 1.6 to 3.6 - Pin Count: 64 - Low Power: Yes