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US 2016/0111140 A1Published application
Semiconductor device and method of driving the same
AssigneeSK hynix Inc.
InventorsNo-Guen JOO, Jae-Il KIM
Life of this patent
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Abstract
A semiconductor device includes a 1st controller suitable for generating refresh control signals for controlling two or more types of refresh operations according to an external refresh signal; and a 2nd controller suitable for controlling a plurality of word lines according to the refresh control signals such that the two or more types of refresh operations are alternately performed a predetermined number of times during a unit refresh period corresponding to the external refresh signal.
Claims19
A semiconductor device comprising:
- a 1 st controller suitable for generating refresh control signals for controlling two or more types of refresh operations according to an external refresh signal;
- and
- a 2nd controller suitable for controlling a plurality of word lines according to the refresh control signals such that the two or more types of refresh operations are alternately performed a predetermined number of times during a unit refresh period corresponding to the external refresh signal.
A semiconductor device comprising:
- a refresh controller suitable for generating an auto-refresh enable signal and a smart refresh enable signal which are toggled opposite to each other, and generating an internal refresh signal which pulses whenever the auto-refresh enable signal and the smart refresh enable signal are activated, at each unit refresh period corresponding to an external refresh signal;
- an address providing unit suitable for alternately providing an auto-refresh address and a smart refresh address according to the auto-refresh enable signal, the smart refresh enable signal, and a target address;
- and
- a word line enable unit suitable for alternately enabling a word line corresponding to the auto-refresh address based on the internal refresh signal corresponding to the auto-refresh enable signal and a word line corresponding to the smart refresh address based on the internal refresh signal corresponding to the smart refresh enable signal a predetermined number of times during the unit refresh period.
1 more element
A method of driving a semiconductor device, comprising:
- receiving an external refresh signal;
- and
- performing a plurality of auto-refresh operations and a plurality of smart refresh operations at different timings per the external refresh signal,
- wherein the auto-refresh operations and the smart refresh operations are alternately performed.
1 more element
Dependencies are inferred from the claim text.