Buffer gates are generally more expensive than ordinary gates, and sometimes there are unused ordinary gates available

Question:

Buffer gates are generally more expensive than ordinary gates, and sometimes there are unused ordinary gates available that can be used to solve a loading problem such as that in Figure 8-52(a). Show how 74LS00 NAND gates can be used to solve this problem.

Figure 8-52

J 74LS112 K Q TE 8 74XX STD TTL CLK (a) J 74LS112 CLK K O lo (b) 74LS37 buffer 8 74XX STD TTL