The high-performance Atmel picoPower AVR RISC-based CMOS 8-bit microcontroller combines 2KB flash memory, 128B EEPROM, 128B SRAM, 18 general purpose I/O lines, 32 general purpose working registers, a single-wire Interface for on-chip debugging, two flexible timer/counters with compare modes, internal and external interrupts,serial programmable USART, a universal serial interface (USI) with start condition detector, programmable watchdog timer with internal oscillator, and three software selectable power saving modes. The device operates between 18.8-5.5 volts. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.