$$ Finish designing the $$MemUnit$$ subcircuit so that, on each clock pulse, it will store the current data value $($present on the D input$)$ into one of the eight flip$-$flops. The flip$-$flop to be updated is to be selected by indicating its address on the Addr input.

$$ MemUnit subcircuit must make use of the splitter component to allow grouping$/$ungrouping multiple wires into a bus.

$$ Update the main $$Security System$$ circuit as necessary to use the MemUnit. The purpose of the MemUnit is to supply the values to the LEDs to give them constant values, thereby eliminating the flashing effect. One of the cells in the MemUnit should be updated on each clock pulse.