集成计数器74LS161的Multisim仿真

摘要

介绍了用Multisim仿真软件分析集成计数器74LS161工作过程的方法,即用Multisim仿真软件中的字组产生器产生计数器的时钟脉冲、控制信号等多路信号,字组产生器的字组内容反映计数器的工作方式及逻辑功能,用Muhisim中逻辑分析仪多踪同步显示计数器的各种输入信号及状态输出信号波形,可直观描述计数器的工作过程.所述方法的创新点是,解决了计数器的工作波形无法用电子实验仪器进行分析验证的问题.%A method of analyzing the working process of the integrated counter 74LS161 by the Multisim simulation software is introduced.The clock pulse and control signal of counter are generated by the word generator in the Multisim simulation software.The working way and logic function of the generator is reflected by its words' content.The working process can be subjectively described by each input signal and the output signal waveform from the multi-synchronal counter of the logic analyzer in Multisim software.The innovation of the present paper is that the method ean be used to solve the problem that the working waveform of the counter can not he analyzed and verified with electronic equipments.