可编程单片机接口芯片PSD311在51单片机扩展中的应用  

Application of Programmable Monolithic Microcomputer Interface Chip PSD311 in the Extending of Monolithic Microcomputer 51

作　　者：孙莹光[1] 刘毅[2] 冯秀清 

机构地区：[1]辽宁工学院计算机科学与工程系,辽宁锦州121001 [2]辽宁工学院信息科学与工程系,辽宁锦州121001

出　　处：《辽宁工学院学报》2001年第5期43-44,58,共3页Journal of Liaoning Institute of Technology(Natural Science Edition)

摘　　要：介绍了采用 PSD311可编程通用外围接口芯片代替以往加在 MCS- 5 1系列单片机外部的程序存储器、数据存储器、地址锁存器、PL D、I/ O扩展等电路 ,减小模板空间、降低了功耗和成本 ,简化了电路设计。Programmable all-purpose peripheral interface chip PSD311 is introduce d, which is adopted in taking the place of circuits such as program memory, data memory, address locking memory, PLD and I/O extending that are prior attached t o the MCS-51 series monolithic microcomputer. Its utilization reduces moldboard space, decreases both the power consumption and the cost, and simplifies circuit design.

关 键 词：地址锁存 存储器扩展 PSD311 MCS-51单片机 单片机接口 复位电路 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]