Semiconductor system for performing a duty ratio adjustment operation
AssigneeSK hynix Inc.
InventorsSang Geun BAE, Seung Jin PARK
Life of this patent
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Abstract
A semiconductor system includes a first semiconductor device configured to output a clock and pattern data, configured to receive a strobe signal and output data, and configured to adjust a duty ratio of the strobe signal by comparing odd data and even data that are generated from the output data and the pattern data, in synchronization with the strobe signal and a second semiconductor device configured to store the pattern data in synchronization with the clock, configured to output the clock as the strobe signal by adjusting a duty ratio of the clock, and configured to output the stored pattern data as the output data.
Claims26
A semiconductor device comprising:
- a data comparison circuit configured to generate an odd comparison signal by comparing odd data that is generated from input data and bits that are included in pattern data, in synchronization with an internal strobe signal, and configured to generate an even comparison signal by comparing even data that is generated from the input data and bits that are included in the pattern data, in synchronization with the internal strobe signal;
- and
- a strobe signal duty adjustment circuit configured to adjust a duty ratio of the internal strobe signal for latching the input data based on the odd comparison signal and the even comparison signal.
A semiconductor system comprising:
- a first semiconductor device configured to output a clock and pattern data, configured to receive a strobe signal and output data, and configured to adjust a duty ratio of the strobe signal by comparing odd data and even data that are generated from the output data and the pattern data, in synchronization with the strobe signal;
- and
- a second semiconductor device configured to store the pattern data in synchronization with the clock, configured to output the clock as the strobe signal by adjusting a duty ratio of the clock, and configured to output the stored pattern data as the output data.
Dependencies are inferred from the claim text.