MICROCHIP ATXMEGA64A1-AU 8 Bit MCU, High Performance, Low Power, AVR Family ATmega64 Series Microcontrollers, AVR, 32 MHz

ATXMEGA64A1-AU is a low power, high-performance 16bit Microcontroller based on the AVR enhanced RISC architecture. By executing instructions in a single clock cycle, the AVR XMEGA devices achieve CPU throughput approaching 1MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. 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. The AVR XMEGA A1 device provides 64kB self-programming flash program memory, 4kB boot code section, 4kB SRAM, 2048byte EEPROM and up to 32MIPS throughput at 32MHz.

• Power-on reset and programmable brown-out detection
• Internal and external clock options with PLL and prescaler
• Programmable multilevel interrupt controller
• Sleep modes - Idle, power-down, standby, power-save, extended standby
• Programming and debug interfaces - JTAG (IEEE 1149.1 com) interface, including boundary scan, PDI
• 4-channel DMA Controller
• 8-channel Event system
• Eight 16bit timers/counters
• Eight USARTs with IrDA support for one USART
• Four 2-wire interfaces with dual address match (I²C and SMBus compatible)
• Four serial peripheral interfaces (SPIs)
• AES and DES crypto engine
• 16bit real-time counter (RTC) with separate oscillator
• Two 16-channel, 12-bit, 2MSPS analogue-to-digital converters
• Two 2-channel, 12-bit, 1MSPS digital to analogue converters
• Four analogue 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
• QTouch® library support

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