The PIC16F675 is a PIC microcontroller that can be programmed up to 1,000 times. Takes the place of: PIC12C508A, PIC12C509 (if only 511 program-bytes are needed), PIC12C671, PIC12C672 (if only 511 program-bytes are needed and PIC12F629 (if only 511 program-bytes are needed). Internal 4MHz oscillator. Minimum supply  4.5v Maximum supply  5.5v Download PIC12F675 datasheet. (2MB)

The 4 Analogue-to-Digital inputs
- commonly called "channels"