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介绍了ＨＭ６２８１２８的性能特点及其在８０９８单片机存储空间扩展中的具体应用方法。采用此方法，可减少ＲＡＭ芯片的使用，充分体现８０９８的优势。文中给出了硬件电路和相应的读写程序。
This paper introduces the performance characteristics of HM628128 and its application in the expansion of storage space of 8098 singlechip. Using this method, can reduce the use of RAM chips, fully embodies the advantages of 8098. The article gives the hardware circuit and the corresponding read and write programs.