PIC16F628-04/P, 8-bit full static Flash It is a CMOS based Microcontroller. PIC16F62X has advanced core features, eight-level deep stack, multiple internal and external interrupt resources. The separate instruction and data buses of the Harvard architecture allow for a 14-bit wide instruction word with separate 8-bit wide data. The two-stage instruction pipeline allows all instructions except program branches (which require two cycles) to be executed in a single cycle.