Internal control signal regulation circuit
AssigneeSK hynix Inc.
InventorsYong Ju Kim, Dae Han Kwon, Hae Rang Choi, Jae Min Jang
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Abstract
An internal control signal regulation circuit includes a programming test unit configured to detect an internal control signal in response to an external control signal and generate a selection signal, test codes and a programming enable signal; and a code processing unit configured to receive the test codes or programming codes in response to the selection signal and regulate the internal control signal.
Claims30
An internal control signal regulation circuit comprising:
- a programming test unit configured to detect an internal control signal in response to an external control signal and generate a selection signal, test codes and a programming enable signal;
- and
- a code processing unit configured to receive the test codes or programming codes in response to the selection signal and regulate the internal control signal.
An internal control signal regulation circuit that is configured to program fuses comprising electrically regulated connection states if an internal control signal and an external control signal are the same, and generate programming codes for regulating the internal control signal.
An internal control signal regulation circuit comprising:
- a programming test unit configured to generate a selection signal which is enabled and test codes which are counted when frequencies of an internal control signal and an external control signal are different from each other, and generate a programming enable signal which is enabled when the frequencies of the internal control signal and the external control signal are the same as each other;
- and
- a code processing unit configured to receive the test codes or programming codes in response to the selection signal and regulate the frequency of the internal control signal to regulate a refresh cycle of a semiconductor memory device.
Dependencies are inferred from the claim text.