Back to results
US 2001/0017811 A1Published application
Semiconductor memory device
AssigneeFujitsu Limited
InventorsHitoshi Ikeda, Tatsuya Kanda, Yoshitaka Takahashi, Shinya Fujioka, Akihiro Funyu
Life of this patent
Estimating the term…
Abstract
A semiconductor memory device having a self-refresh operation includes a detection circuit generating a detection signal when detecting a change of a given input signal, and a comparator circuit comparing the detection signal with a refresh request signal internally generated and generating a control signal indicative of a circuit operation.
Claims10
A semiconductor memory device having a self-refresh operation comprising:
- a detection circuit generating a detection signal when detecting a change of a given input signal;
- and
- a comparator circuit comparing the detection signal with a refresh request signal internally generated and generating a control signal indicative of a circuit operation.
A semiconductor memory device having a self-refresh operation comprising:
- a detection circuit generating a detection signal when detecting a change of a given input signal;
- and
- a refresh control circuit generating a refresh request signal that requests the self-refresh operation responsive to the detection signal in a test mode.
Dependencies are inferred from the claim text.