The AT90CAN128-16AU is a high-performance, low-power 8-bit AVR RISC-based Microcontroller combines 4kb EEPROM, 53 general purpose I/O lines, 32 general purpose working registers, CAN controller (V2.0A/V2.0B compliant), real time counter, four flexible timer/counters with compare modes and PWM, two USARTs, byte oriented two-wire serial interface, an 8-channel 10-bit A/D converter with optional differential input stage with programmable gain, programmable watchdog timer with internal oscillator, SPI serial port, JTAG test interface (IEEE 1149.1 compliant) for on-chip debugging and five software selectable power saving modes. The device supports a throughput of 16 MIPS at 16MHz and operates between 2.7 to 5.5V. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.