AT89C51是一種帶4K字節閃爍可編程可擦除只讀存儲器（FPEROM—Falsh Programmable and Erasable Read Only Memory）的低電壓，高性能CMOS8位微處理器，俗稱單片機。該器件采用ATMEL高密度非易失存儲器制造技術制造，與工業標準的MCS-51指令集和輸出管腳相兼容。由于將多功能8位CPU和閃爍存儲器組合在單個芯片中，ATMEL的AT89C51是一種高效微控制器，為很多嵌入式控制系統提供了一種靈活性高且價廉的方案。
It s my own design .there are s3c44b0x and atl8019 in the design. it is original so need be improved.you can open it with protel 99se!
I great appreciate your use!
The combined demo is dedicated for S1C33L05, so DMT33L05 should be used to load
and run the demo. For the detail description of DMT33L05, please refer to
S5U1C33L05D1_User_Manual.
