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Advantages And Disadvantages Of Multilip Flops

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III.REGISTERS WITH MULTI BIT FLIP FLOPS

The section describes that multi bit flip flops operation and how they will form. Fig 2 shows single bit storage flip flop of D type in which it contains master latch and slave latch. So it needs clk and clk’ signals. Figure 2 : Single bit storage flip flop

The multi bit flip flop is forms by suitable merging of single bit storage flip flops. The multi bit flip flops are uses same clock signal. So number individual clock signals reduces and clock power consumption reduces.

Figure 3. The four single-bit flip-flops are merged into a multi-bit filp flop
Fig 3 shows that a four bit multi bit flip flop ,by merging single bit four flip flops . From fig. the four bit multi bit flip flop uses same clock signal, hence single clock signal uses instead of four clock signals. MBFFs may offers some of the advantages is as …show more content…

Figure 4 shows the flow graph of our proposed work. Our proposed work is roughly divided into three parts. Mergable flip flops identification, creating a combination table; and Merge flip-flops. In first stage, we have to identify the flip-flops which are supposed to be combined. In second stage, a combination table can be formed, library is created it contains all combinations of merged multi bit flip flops. In third step, all suitable merged flip flops are merged with help of library

3.1 Identification of mergable flip flops
The mergable flip flops are share the common clock buffer and capable of decreasing the power consumption. The single bit flip flops and multi bit flip flops are having same clock, set and reset conditions. For a example a 2-bit multi bit flip flop formation it needs two single bit storage are required. The single bit flip flops are first identified as which are nearer to each other then only merging is possible. So identification of mergable flip flops are important and distance we have to consider.

3.2 Library (Group of

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