Data output device for semiconductor memory apparatus
AssigneeHynix Semiconductor Inc.
InventorHong-Sok Choi
Life of this patent
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Abstract
A data output device of a semiconductor memory apparatus includes detection means configured to detect a specified operation frequency range; pre-driving means configured to be inputted with signals; driving means configured to receive outputs of the pre-driving means and drive an output of data; and adjustment means configured to adjust a slew rate of the driving means under the control of an output signal of the detection means.
Claims20
A data output device of a semiconductor memory apparatus, comprising:
- detection means configured to detect a specified operation frequency range;
- pre-driving means configured to be inputted with signals;
- driving means configured to receive outputs of the pre-driving means and drive an output of data;
- and
- adjustment means configured to adjust a slew rate of the driving means under the control of an output signal of the detection means.
A data output device of a semiconductor memory apparatus, comprising:
- an output driver configured to be inputted with, amplify and output a signal;
- and
- control means configured to detect a specified operation frequency range and control a slew rate of the output driver at the specified operation frequency range.
A data output device of a semiconductor memory apparatus, comprising:
- a plurality of output drivers configured to be inputted with, amplify and output a signal to an output terminal;
- and
- control means configured to detect a specified operation frequency range and control slew rates of the plurality of output drivers at the specified operation frequency range.
A data output device of a semiconductor memory apparatus, comprising:
- detection means configured to detect a specified operation frequency range;
- a plurality of pre-driving means configured to be inputted with signals;
- a plurality of driving means configured to receive outputs of the pre-driving means and drive an output of data;
- and
- adjustment means configured to control the number of operable driving means under the control of an output signal of the detection means.
Dependencies are inferred from the claim text.