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US 9,431,087 B2Granted
Multi-channel self refresh device
AssigneeSK hynix Inc.
InventorSang Hoon Lee
Life of this patent
Estimating the term…
Abstract
A multi-channel self refresh device may include period generation circuit configured to output a self refresh pulse signal having a predetermined time period in response to a refresh enable signal. The multi-channel self refresh device may include a channel region configured to activate a refresh signal in response to the self refresh pulse signal, when a self refresh command signal corresponding to a channel from among a plurality of self refresh command signals is activated.
Claims19
A multi-channel self refresh device comprising:
- a period generation circuit configured to output a self refresh pulse signal having a predetermined time period in response to a refresh enable signal;
- a channel region configured to activate a refresh signal in response to the self refresh pulse signal, when a self refresh command signal corresponding to a channel from among a plurality of self refresh command signals is activated;
- a combination unit configured to receive a plurality of self refresh signals and output a refresh enable signal.
A multi-channel self refresh device comprising:
- a combination unit configured to output a refresh enable signal in response to receiving at least one self refresh signal from a plurality of self refresh signals;
- a period generation circuit configured to output a self refresh pulse signal having a predetermined time period in response to the refresh enable signal;
- a first Pulse for Self Refresh (PSRF)controller configured to output a first refresh signal in response to the self refresh pulse signal when a first self refresh command signal is activated;
- and
- a second PSRF controller configured to output a second refresh signal in response to the self refresh pulse signal when a second self refresh command signal is activated.
2 more elements
Dependencies are inferred from the claim text.