8 Bit Shift Register Circuit Diagram. The 74hc595 is an 8 bit serial in parallel out shift register i e. Circuit with 2 shift registers.
If we connect four flip flops in the configuration of a shift register we get a 4 bit shift register. There is an ic 74ls166 which has eight parallel data input one serial input and one serial output. The device features a serial data input ds eight parallel data inputs d0 to d7 and two complementary serial outputs q7 and q7.
4 bit serial in to serial out shift register you may think what s the point of a siso shift register if the output data is exactly the same as the input data.
The 74hc595 is an 8 bit serial in parallel out shift register i e. Separate clocks are provided for both the shift and storage register. There is an ic 74ls166 which has eight parallel data input one serial input and one serial output. The shift register which allows serial input and produces parallel output is known as serial in parallel out sipo shift register.
