Static information storage and retrieval – Systems using particular element – Ferroelectric
Patent
1997-04-30
1999-04-06
Nelms, David
Static information storage and retrieval
Systems using particular element
Ferroelectric
365228, G11C 1122
Patent
active
058927050
ABSTRACT:
An apparatus and method for maintaining non-volatility in a ferroelectric random access memory (FRAM), in which recorded information is maintained during a power failure, are provided. The apparatus for maintaining non-volatility includes a control portion for a writeback function, a power source voltage sensing portion for sensing a failure in the power source voltage and providing a power failure signal to the control portion such that the control portion completes a writeback cycle before power failure. The power source voltage sensing portion generates a control signal by sensing a failure in power source voltage, and provides a power failure signal to the control portion such that a writeback process is completed before power failure, thereby maintaining non-volatility in the memory device. That is, loss of non-volatility in the memory device occurring during a power failure can be prevented by increasing the reliability of products.
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Nelms David
Samsung Electronics Co,. Ltd.
Tran M.
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