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基于multisim电子计数器的设计 李超，物理与电子信息学院 摘 要：计数器是比较常用的数字逻辑部件。其种类非常多，可利用触发器和门电路构成，在实际工作中，通常利用集成计数器来构成任意进制的计数器。但是基于固定功能的标准芯片“自上而下”的传统数字电路设计方法，不仅缺乏灵活性，设计效率低，而且受到实验器材、场地、经费等条件制约；再者由于采用中小规模集成电路实现，电路连线复杂，查错困难，设计一个电子计数器往往费时费力。本文以74LS160N为例，采用一款优秀的EDA软件——Multisim作为设计平台，对任意进制计数器的设计原理及构成方法作了详细的介绍，并进行了必要的仿真。电路分析软件Multisim 在电子线路设计中具有方便、高效、直观的优点，可以很好地解决电路设计中的难题，为电子电路的设计与开发提供了一个新的平台。 关键词：计数器；Multisim；电子仿真；74LS160N Design of electronic Counter Based on Multisim Li Chao, College of Physics and Electronic Information Abstract: Counter is an ordinary digital logical device. It has a variety of types, which is constituted by triggers and gates. In actual work, it usually uses integrated counter to form any into system counter. But based on fixed function of standard chip top-down traditional digital circuit designing method, not only the lack of flexibility, low efficiency of design, but also influenced by the experiment equipment, site, funds and restricting conditions; Moreover, due to the medium and small scale integrated circuit implementation, circuit connection complex, checking wrong difficulties, designing a electronic counter often time-consuming. This paper introduces the way of taking 74LS160N as an example, adopting an excellent software of EDA—Multisim as the design platform, the author detailedly introduces the design principle and assembled methods of any counter, and does the necessary simulation. Multisim , the circuit analysis software in electronic circuit design has the advantages of convenience, efficiency and intuition, which can well solve the problems of the circuit design, and it will provides a new platform electronic circuit design and development. Key words：Counter; Multisim; Simulation; 74LS160N 1 引言 目前人类社会已逐步实现了高度发达的信息化，各种电子产品不但在性能上不断增强，而且更新换代的频率也越来越快，实现这种进步的主要原因是生产制造技术和电子设计技术的发展，特别是以EDA为核心的电子设计技术得到了飞速发展。EDA是以计算机为工作平台，融合电子技术、计算机技术、智能化技术等必威体育精装版成果研制而成的通用软件。它的主要功能是IC设计、各种电路的计算机辅助设计和仿真，以及PCB设计[1]。 Multisim是EDA(电子设计自动化)工具中的一款电子电路计算机仿真设计工具软件，该软件是加拿大Interactive Image Techno