| 摘要 |
PURPOSE:To simplify a memory reading action in a certain order for refreshing by performing a reading action through an address counter and by refreshing it automatically. CONSTITUTION:A counter for forming and outputting an adress signal after it is activated by an external timing signal is built in an automatic refresh circuit RFE. The address and a specified address from a shift register SR accomplish reading of a memory array M-ARY for refreshing in a certain order without use of microprocessor, etc.
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