异步六十进制计数器的设计与实现  

Design and Implementation of Asynchronous Sexagesimal Counter

作　　者：史占花 SHI Zhanhua(Department of Physics and Hydropower Engineering,Gansu Normal University for Nationalities,Hezuo 747000,China)

机构地区：[1]甘肃民族师范学院物理与水电工程系,甘肃合作747000

出　　处：《河南科技》2024年第9期5-8,共4页Henan Science and Technology

摘　　要：【目的】在数字电子技术的教学中,集成计数器的设计是教学的重点和难点。为了便于学生快速准确地完成计数器的设计,加强设计思维的训练,设计了六十进制异步级联加计数器。【方法】选用集成计数器74LS161D,采用反馈预置法和组合逻辑电路的设计方法。首先,按照时序电路设计步骤获得异步六十进制电路图;其次,利用Multisim10.0软件进行仿真,并对运行结果记录和分析;最后,在实验室的数字电子技术实验台上进行实物操作,进一步验证该设计在实践中运行的稳定性、正确性、可靠性。【结果】实验结果表明,该六十进制计数器电路符合设计要求,运行稳定可靠。【结论】通过Multisim10.0进行仿真分析并设计电路,保证了实物实验顺利进行,提高了设计效率,降低了故障发生概率,加强了学生对设计过程的理解,激发了学生对设计计数器的兴趣。[Purposes]In the teaching of digital electronic technology,the design of integrated counter is the focus and difficulty of teaching.In order to make students complete the counter design quickly and accurately,this paper uses the integrated counter 74LS161D to design the sexagesimal asynchronous plus counter.[Methods]Using the design method of feedback preset method and combinational logic cir⁃cuit method,First,the asynchronous sexagesimal circuit diagram is obtained according to the sequential circuit design step,and then the Multisim10.0 software platform is used to simulate,Record and analyze the operating results in accordance with the design requirements;Finally,physical experimental analysis was conducted on the digital electronic technology experimental platform in the laboratory to further verify the stability,correctness,and reliability of the design in practical operation.[Findings]The experi⁃mental results show that the designed sexagesimal counter circuit meets the design requirements.[Con⁃clusions]The simulation analysis and circuit design are carried out by Multisim10.0,which ensures the smooth progress of the physical experiment,improves the design efficiency,reduces the probability of failure,strengthens the students′understanding of the design process,and stimulates the students′inter⁃est in designing the counter.

关 键 词：集成计数器74LS161 设计 六十进制异步计数器 仿真 实践 

分 类 号：TN79[电子电信—电路与系统]