1、习题和练习题,罗嵘,组合习题,用两片 74 148 8- 3 线优先编码器（参看数据手册）构成 16 -4线优先编码器（可附加其他的门电路）,触发器习题,图1是一个门控的JK锁存器的逻辑图和功能表。分析这个电路存在的问题。为了让该电路实现JK 触发器的正常功能，该怎么办？,图1,(b),触发器习题,The input signals shown in Fig. 1 are applied to the master-slave JK flip-flop of Fig. 2 when initially in its 0-state. Sketch the QM and QS output si
2、gnals. Assume all timing constraints are satisfied.,Fig.1,J,K,C,t,Fig.2,计数器习题,利用两片74 LS 160具有异步清零和同步送数功能的十进制计数器，以及其它的门电路实现24进制的计数器，请画出逻辑图,ASM习题,Convert the Mealy state diagram into an equivalent ASM chart.请把此米利型状态图转换成ASM流程图,多路选择器习题,Design a customized multiplexer with four 4-bit input buses P, Q, R, and T, selecting one of the buses to drive a 4-bit output bus Y according to Table X5.89. Use two 74x153s and a code converter that maps the eight possible values on S2S0 to four select codes for the 74x153s. Choose a code that minimizes the size and propagation delay of the code converter.,
