摘要
介绍了采用总线驱动器和3-8译码器对基于AT89C51控制系统I/O总线进行扩展,扩充了 89C51的I/O总线,增强了89C51的负载能力。
This paper introduced one method to extend the I/O bus basing on the AT89C51 controlling system by the bus driver and the 3-8 decoder. It increases the number of the I/O bus of the singlechip system,and enlarges the load factor of the singlechip system.
出处
《光电子技术与信息》
2004年第1期55-57,共3页
Optoelectronic Technology & Information
