发明名称 |
Method and circuitry arrangement for refreshing data stored in a dynamic MOS memory |
摘要 |
The invention concerns a method and circuitry for refreshing data stored in a dynamic MOS memory. The refreshing processes proceed independently of data handling in the memory. The duration between successive two refreshing processes is selected such that it is smaller than a predetermined maximum duration by a duration which is associated with a memory process. When during a refreshing process, a reading process is to be executed, the reading process is delayed by means of inserted holding cycles. During execution of memory processes, the execution of a refreshing process is delayed until the memory process is concluded. In the case of a simultaneous appearance of signals which precede a refreshing process and a memory process, a decision unit determines a sequence of execution of the processes.
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申请公布号 |
US4376988(A) |
申请公布日期 |
1983.03.15 |
申请号 |
US19810238138 |
申请日期 |
1981.02.25 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
LUDWIG, VOLKER;HEITMANN, JUERGEN |
分类号 |
G11C11/406;(IPC1-7):G11C11/40 |
主分类号 |
G11C11/406 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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