ATXMEGA128A1U-C7U

The ATXMEGA128A1U-C7U is a low power, high-performance 8-bit 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 Atmel 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 A1U device provides 128kB self-programming flash program memory, 8kB boot code section, 8kB 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 16-bit timers/counters
• One USB device interface - USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) device compliant
• 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
• 16-bit Real-time counter (RTC) with separate oscillator
• Two 2-channel, 12-bit, 1MSPS digital to analog converters