Bidirectional Shift Register Circuit Diagram. Serial in serial out shift registers. This circuit consists of three d flip flops which are cascaded.
Next r lì control line is made either low or high in order to opt for either left shift or right shift of the data bits respectively. Serial in serial out shift registers are shift registers that streams in data serially one bit per clock cycle and streams out data too in the same way one after the other. The circuit consists of four d flip flops which are connected.
The logic circuit given below shows a bidirectional shift register.
Applying the same logic a shift register which can shift the data in both directions as well as load it. Floyd figure 6 1 the 74hc194 4 bit bi directional universal shift register figure 6 2 the timing diagram of 74hc194. The circuit consists of four d flip flops which are connected. Figure 1 shows an n bit bidirectional shift register with serial data loading and retrieval capacity.
