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详细介绍了数码管及键盘智能芯片zlg7289A的基本原理、主要特点与使用原则 ,给出了以zlg7289A芯片为核心设计的人机接口电路及程序框图。
Introduced the digital tube and keyboard intelligence chip zlg7289A basic principle, the main characteristic and the use principle, has given the zlg7289A chip as the core design man-machine contact surface circuit and the block diagram.