任意进制计数器实现的灵活性与多样性探讨  

Discuss flexibility and diversity of realizing modulo-N counter

作　　者：刘占文[1] 王姣姣[2] 沈超[2] 林涛[2] 

机构地区：[1]长安大学信息工程学院,陕西西安710064 [2]长安大学电子与控制工程学院,陕西西安710064

出　　处：《电子设计工程》2016年第8期148-151,154,共5页Electronic Design Engineering

基　　金：国家物联网重大示范工程专题研究项目(2012-364-812-105);国家自然科学基金(51278058);陕西省自然科学基金(2012JM8011)

摘　　要：以74290为基础,设计24进制计数器,在不限定计数器状态编码的前提下,分析、讨论了电路实现的多种可能性,给出了12种电路实现形式,并指出了其它可能的电路实现方案。以此为例,论证了以现有集成计数器为基础设计任意进制计数器时,其实现途径的灵活性与多样性。文中分析表明,所论述的设计思路对其它型号的集成计数器设计任意进制计数器,具有一定的启发与指导意义。Base-24 counter is designed based on 74290, which under the premise of not limit counter status encoding,analyzed and discussed the various possibilities of circuits realize, and give 12 forms of circuits realization, also pointed out other possible methods of circuits realization. Based on this example, the article demonstrated the flexibility and diversity of the intergrated counter＇realization, which based on existing intergrated counter. The analysis of the article shows the discussion of the design idea has a certain inspiration and guidance to those others.

关 键 词：集成计数器 任意进制计数器 设计方法 灵活性 多样性 

分 类 号：TN791[电子电信—电路与系统]