Data recording device

An data recording device according to an aspect of the present invention includes a memory cell array in a memory chip, a refresh circuit which executes a refreshing of the memory cell array, a refresh control circuit which executes refreshing at a time interval which is shorter than a data hold tim...

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Bibliographic Details
Main Author HIRAI TAKAHIRO,NAITO KATSUYUKI,KUBO KOICHI,MOTOI YUICHI,WATANABE HIROSHI
Format Patent
LanguageEnglish
Published 14.02.2007
Subjects
INFORMATION STORAGE
PHYSICS
STATIC STORES
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Summary:An data recording device according to an aspect of the present invention includes a memory cell array in a memory chip, a refresh circuit which executes a refreshing of the memory cell array, a refresh control circuit which executes refreshing at a time interval which is shorter than a data hold time and manages a data hold time, and an internal power source which supplies a power source electric potential to the refresh circuit and the refresh control circuit in a state in which the data recording device is removed from an external device.
Bibliography:Application Number: CN200610109186