IC电话卡原理

详细介绍各类IC电话卡硬件结构，读写时序，数据存储格式

附通过电脑并口（打印机口）操作IC电话卡的读/写电路，及对应例程

电路元件列表：电阻7个，NPN三极管1个，PNP三极管1个，1N4148二极管13个，如没有IC卡座可以直接焊到触点上。-The principle of IC telephone card details the hardware structure of the various types of IC phone card, read and write timing, data storage format attached via the computer parallel port (printer port) to operate the IC telephone card read/write circuit, and the corresponding list of routine circuit elements: resistance 7 NPN transistor 1, PNP transistor, 1N4148 diode 13, such as IC card connector can be directly soldered to the contacts.