触击式串行存储卡的原理与应用

Principle and Application of Touch Memory Card

触击式串行存储卡作为电子信息卡系中的一个重要品种,以其独特的封装、单总线传送和读写器结构简单而在许多领域得到广泛应用。以DS1991A为例,介绍了该类卡的基本特点、结构、原理和1-wire协议,并结合在单片机系统中的应用,给出了应用软件编程。

TM Card is one of the important breed in the system of electric information cards. It is widely used in the disgusting environment with the distinctive package,1-Wire Bus technology and the simple I/O device. This paper introduces the basic features , structure ,principle and 1-wire protocol about this kind of cards by setting the example of 1991A. By the application in the system of signal chip microprocessor ,Written program of software is provided.