Semiconductor memory device for self-correcting data output errors by taking the logical product of first and second identical data outputs
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United States of America Patent
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Aug 24, 1993
Grant Date -
N/A
app pub date -
Apr 17, 1990
filing date -
Apr 20, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A self-error-correcting semiconductor memory device having a programmable ROM for storing first and second data, at least one temporary register for temporarily storing data and a one-time PROM for writing one time, wherein first data stored in a true address and second data identical to the first data stored in a dummy address both within the programmable ROM are outputted to a data bus and multiplied with each other so as to obtain a third data for performing an error correction.
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