The ATXMEGA128D4-AU is a 16-bit low-power AVR XMEGA Microcontroller Unit combines 128kB ISP flash memory (8kB boot code section) with read-while-write capabilities, 2kB EEPROM, 8kB SRAM, 4-channel event system, a programmable multi-level interrupt controller, 34 general purpose I/O lines, a 16-bit real time counter, 4 flexible 16-bit timer/counters with compare modes and PWM, two USARTs, two -Wire Interfaces (TWIs), two Serial Peripheral Interfaces (SPIs), one 12-channel/12-bit A/D converter with optional differential input with programmable gain, 2 analogue comparators with window mode, a programmable watchdog timer with separate internal oscillator, accurate internal oscillators with PLL and pre-scaler and programmable brown-out detection. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1MIPS per MHz, balancing power consumption and processing speed.
- High performance
- Non-volatile program and data memories
- Four 16-bit timer/counters
- High-resolution extensions on all timer/counters
- Two USARTs with IrDA support for one USART
- Two serial peripheral interfaces (SPIs)
- 16-bit real time counter (RTC) with separate oscillator
- Power-on reset and programmable brown-out detection
- Programmable multilevel interrupt controller
- 5 sleep modes
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