几种常见BCD码在同步时序逻辑电路中的对比分析  

Comparative analysis on several common BCD codes in synchronous sequential logic circuits

作　　者：严李强[1] 郭玉萍[1] 刘重显[1] 

机构地区：[1]西藏大学工学院,西藏拉萨850000

出　　处：《电子设计工程》2014年第3期129-132,135,共5页Electronic Design Engineering

基　　金：国家自然科学基金(61261021)

摘　　要：BCD码也称二进码十进数。根据实际需求,BCD码产生了多种编码形式。选择不同的BCD码来完成电路设计,则逻辑电路会呈现出不同的结构和工作过程。本文选择同步时序逻辑电路设计中的一个具体实例,采用常见BCD码的六种形式分别完成一次完整设计,对比分析各种编码形式对逻辑电路设计的可靠性、自启动能力、电路结构和元器件利用率的影响。BCD is also known as binary coded decimal number.According to the actual demands,there are many encoding forms for BCD.If selecting different BCD codes to complete the circuit design,the logic circuit will be showing different structures and working processes.This paper selects a concrete example in synchronous sequential logic circuit to analysis the impact of coding reliability,self-starting capability,the circuit structure and utilization of components by using six different encoding forms of BCD to complete a full design.

关 键 词：BCD码 同步时序逻辑电路 有权码 无权码 

分 类 号：TN791[电子电信—电路与系统]