The high-performance, low-power Microchip 8-bit AVR RISC-basedmicrocontroller combines 128 KB ISP flash memory, 4KB EEPROM, 4KB SRAM, 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 16 MHz and operates between 2.7-5.5 volts.