Data input/output apparatus and method for semiconductor system
AssigneeHynix Semiconductor Inc.
InventorsHae-Rang Choi, Yong-Ju Kim, Jae-Min Jang
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Abstract
A semiconductor memory device includes: a strobe signal reception unit configured to receive a strobe signal and generate a tracking clock signal; a clock reception unit configured to receive a clock signal and generate an internal clock signal; a plurality of data reception units configured to receive parallel data in accordance with the internal clock signal and generate internal data; and a phase control unit configured to control the phase of the internal clock signal to track the tracking clock signal and to compensate for a variation in the phase of the internal clock signal while the data is received.
Claims31
A semiconductor memory device comprising:
- a strobe signal reception unit configured to receive a strobe signal and generate a tracking clock signal;
- a clock reception unit configured to receive a clock signal and generate an internal clock signal;
- a plurality of data reception units configured to receive parallel data in accordance with the internal clock signal and generate internal data;
- and
- a phase control unit configured to control a phase of the internal clock signal to track the tracking clock signal and to compensate for a variation in the phase of the internal clock signal while the parallel data is received.
A semiconductor system comprising first and second semiconductor chips for transmitting and receiving data, respectively,
- wherein the first semiconductor chip comprises:
- a plurality of data transmission units configured to output a plurality of parallel data;
- a clock transmission unit configured to output a clock signal;
- and
- a strobe signal transmission unit configured to output a strobe signal, and
- the second semiconductor chip comprises:
- a strobe signal reception unit configured to receive the strobe signal and generate a tracking clock signal;
- a clock reception unit configured to receive the clock signal and generate an internal clock signal;
- a plurality of data reception units configured to receive the parallel data in accordance with the internal clock signal and generate internal data;
- and
- a phase control unit configured to control a phase of the internal clock signal to track the tracking clock signal.
A data input/output method for a semiconductor system, which transmits and receives data between first and second semiconductor chips, the data input/output method comprising:
- transmitting a plurality of parallel data, a clock signal, and a strobe signal from the first semiconductor chip to the second semiconductor chip;
- receiving the strobe signal and generating a tracking clock signal;
- receiving the clock signal and generating an internal clock signal;
- receiving the parallel data in accordance with the internal clock signal and generating internal data;
- and
- controlling a phase of the internal clock signal to track the tracking clock signal and compensating for a variation in the phase of the internal clock signal while the parallel data is transmitted and received.
Dependencies are inferred from the claim text.