外文資料翻譯---利用多重單片集成電路的液位監(jiān)測儀-全文預覽
【正文】 ventional connection chip way, has then omitted many transition chips, like 74LS244, 74LS245, 74LS73 and so on, also caused the software design bees simple easy. Because the hardware connection bees simple moreover is the conventional connection, therefore this article has not provided the detailed line connection diagram. between 3 monolithic integrated circuit39。 Because each group request can roll demonstrates in 1 year each class, every day, each month39。 Analog switch part. The monolithic integrated circuit selects 89C52, its characteristic is internal includes 8KB ROM, does not need outside the piece to expand ROM。 The nonvolatile storage (makes the RAM expansion)。s familiar degree to it, paratively, uses it to waste the time, another I/O expands the specialpurpose chip the price to be higher than the monolithic integrated circuit, considers from the cost accounting not economically. ⑤ Specialpurpose I/O chip timeliness is bad, because I/O expands the specialpurpose chip only to play the receiving and dispatching signal the role, itself has not processed the processing signal ability, such signal will undergo its transmission back and forth to create the detention inevitably, will thus have the timely bad problem. ⑥ Uses the monolithic integrated circuit to make the I/O connection, is advantageous for the software and hardware design modulation, the division of labor is clear, for the design, the debugging, the maintenance brings enormously convenient. ⑦ Used the monolithic integrated circuit to make the I/O connection to strengthen for the connection supervision dynamics, lightened the main monolithic integrated circuit39。 1 附錄 C：外文資料翻譯 Uses the multimonolithic integra
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