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US 7,804,727 B2Granted
Semiconductor device having multiple I/O modes
AssigneeHynix Semiconductor Inc.
InventorKwan-Dong Kim
Life of this patent
Estimating the term…
Abstract
Semiconductor device having multiple I/O modes. The device includes a data buffer configured to receive data; a strobe input buffer configured to receive a data strobe signal, a phase controller configured to shift a phase of the data strobe signal by different numbers of degrees, including 0 degrees, according to input modes and a data detector configured to detect the data in response to the data strobe signal output from the phase controller.
Claims14
A semiconductor device, comprising:
- a data buffer configured to receive data;
- a strobe input buffer configured to receive a data strobe signal;
- a phase controller configured to shift a phase of the data strobe signal by different numbers of degrees, including 0 degrees, according to input modes;
- and
- a data detector configured to detect the data in response to the data strobe signal output from the phase controller.
2 more elements
A semiconductor device, comprising;
- an output driver configured to output data;
- a phase locked loop configured to output clocks having different phases;
- a selector configured to select one of the clocks as a data strobe signal;
- and
- a strobe output buffer configured to output the selected data strobe signal to an outside of a chip.
2 more elements
A semiconductor device, comprising;
- a data buffer configured to receive data;
- a strobe input buffer configured to receive an input data strobe signal;
- a phase controller configured to shift a phase of the input data strobe signal by different numbers of degrees, including 0 degrees, according to input modes or to delay a phase of an output data strobe signal by different phases, including 0 degrees, according to output modes;
- a data detector configured to detect the data in response to the input strobe signal output from the input phase controller;
- an output driver configured to output data;
- and
- a strobe output buffer configured to output the output data strobe signal output from the phase controller to an outside of a chip.
4 more elements
A semiconductor device, comprising;
- a data buffer configured to receive data;
- a strobe input buffer configured to receive an input data strobe signal;
- an input phase controller configured to shift a phase of the input data strobe signal by different numbers of degrees, including 0 degrees, according to input modes;
- a data detector configured to detect the data in response to the input data strobe signal output from the input phase controller;
- an output driver configured to output data;
- a phase locked loop configured to output clocks having different phases;
- a selector configured to select one of the clocks as a data strobe signal according to output modes;
- and
- a strobe output buffer configured to output the selected data strobe signal to an outside of a chip.
6 more elements
Dependencies are inferred from the claim text.