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US 11,962,300 B2Granted
Input/output circuit, operation method thereof and data processing system including the same
AssigneeSK hynix Inc.
InventorsJaehyeong Hong, Yo Han Jeong, Jin Ha Hwang, Junseo Jang
Life of this patent
Estimating the term…
Abstract
An input/output circuit may include an input circuit, an amplifier circuit and a precharging circuit. The input circuit may load differential input data to setup nodes based on a data strobe clock. The amplifier circuit may compare and amplify the data that is loaded to the setup nodes and configured to output the amplified data. The precharging circuit may precharge the setup nodes based on the data strobe clock and the differential input data.
Claims18
An input/output circuit comprising:
- a clock generation circuit configured to adjust a duty rate of a data strobe clock;
- an input circuit configured to load differential input data to setup nodes based on the data strobe clock;
- an amplifier circuit configured to compare and amplify the data that is loaded to the setup nodes and configured to output the amplified data;
- and
- a precharging circuit configured to precharge the setup nodes based on the data strobe clock and the differential input data.
2 more elements
An operation method of an input/output circuit, comprising the steps of:
- precharging a first setup node and a second setup node to different voltage levels from each other based on differential input data during a precharging operation;
- loading the differential input data to the first and second setup nodes precharged to the different voltage levels, during a loading operation;
- and
- comparing and amplifying the data of the first and second setup nodes and outputting the amplified data during an output operation,
- wherein the step of precharging the first and second setup nodes comprises:
- precharging the first setup node based on a data strobe clock and a primary input data that is included in the differential input data;
- and
- precharging the second setup node based on the data strobe clock and a secondary input data that is included in the differential input data.
5 more elements
A data processing system comprising:
- a host device configured to provide differential input data and data frequency information;
- and
- a data processing device configured to input and output the differential input data based on a data strobe clock with a duty rate that corresponds to the data frequency information,
- wherein the data processing device comprises:
- a clock generation circuit configured to adjust the duty rate of the data strobe clock and generate a final data strobe clock based on the data frequency information;
- and
- an input/output circuit comprising an input circuit configured to load the differential input data to setup nodes based on the final data strobe clock, an amplifier circuit configured to amplify the data that is loaded to the setup nodes and configured to output the amplified data, and a precharging circuit configured to precharge the setup nodes based on the final data strobe clock and the differential input data.
4 more elements
Dependencies are inferred from the claim text.