Universal Shift Register Timing Diagram. Ic 74291 4 bit universal shift register binary up down counter synchronous. The purpose of the parallel in parallel out shift register is to take in parallel data shift it then output it as shown below.
Such a shift register capable of storing n input bits is shown by figure 1. Ic 74498 8 bit bidirectional shift register with parallel inputs and three state outputs. Above we apply four bit of data to a parallel in parallel out shift register at d a d b d c d d.
That covers the parallel out part.
Such a shift register capable of storing n input bits is shown by figure 1. Ic 74395 4 bit universal shift register with three state outputs. The input is given to the and gate 1 of the flip flop 1 as shown in the figure via serial input pin. That covers the parallel out part.
