PIC18F4685-I/P, ECAN™ technology, It is an Advanced Flash Microcontroller with 10-bit A/D and nanoWatt technology. The PIC18F4685 family offers design improvements that make this microcontroller a logical choice for many high-performance and power-sensitive applications. The PIC18F4685 family includes a number of features that can significantly reduce power consumption during operation. The PIC18F4685 device contains an internal oscillator block that produces two different clock signals that can be used as the clock source of the microcontroller.