The quad stepping motor driver VID66-08 is a monolithic CMOS device intended to be used as an interface circuit to ease the use of the stepper motor VID29-XX. It is specifically designed for applications in the car dashboard. The circut allows the user to drive two motors as it contains two identical drivers on the same chip. The driver circuit converts a pulse train f(scx) into a current level sequence sent to the motor coils. This sequence is used to produce the micro stepping movement of the motor. Each inner driver in the chip generates 2 sequent logic pulse signals and provides shaft stepping angle resolution 1/12°.