【摘要】 HD7279A是一片真正的单片LED数码管显示和键盘接口芯片,无需外围电路,只需要外接少量的电阻等,即可构成完善的显示、键盘接口电路。本文主要介绍智能控制芯片HD7279A的结构特点及其应用设计。更多还原

【Abstract】 HD7279A is a new LED and keyboard interface intelligent control chip , it can construct good display and keyboard interface circuit using few resistances instead of outside circuit.The article introduced the functions and characters of HD7279A and the design of application.更多还原