Back to results
US 2014/0176192 A1Published application
Semiconductor device
AssigneeSK hynix Inc.
InventorNak-Kyu PARK
Life of this patent
Estimating the term…
Abstract
A semiconductor device includes a differential input unit configured to generate internal differential signals based on external differential signals by using a first level voltage, a signal conversion unit configured to generate an internal synchronization signal based on the internal differential signals in response termination control signals by using a second level voltage, and a duty correction unit configured to correct duty of the internal synchronization signal by using the second level voltage.
Claims18
A semiconductor device, comprising:
- a differential input unit configured to generate internal differential signals based on external differential signals by using a first level voltage;
- a signal conversion unit configured to generate an internal synchronization signal based on the internal differential signals in response termination control signals by using a second level voltage;
- and
- a duty correction unit configured to correct duty of the internal synchronization signal by using the second level voltage.
1 more element
A semiconductor device, comprising:
- a first differential amplification unit configured to generate internal differential signals by amplifying external differential signals, having a swing width and a differential input cross point voltage defined within a permitted limit of an external voltage, by using the external voltage;
- a control circuit unit configured to control a swing width and differential input cross point voltage of the internal differential signals within a permitted limit of an internal voltage, having a different voltage level from the external voltage, in response to first control signals;
- a second differential amplification unit configured to generate an internal synchronization signal by amplifying the internal differential signals, having the controlled swing width and differential input cross point voltage, by using the internal voltage;
- and
- a duty correction unit configured to correct duty of the internal synchronization signal by using the internal voltage.
2 more elements
A semiconductor device, comprising:
- a first differential amplification unit coupled between a terminal for a power supply voltage and a terminal for a ground voltage and configured to generate internal differential clocks by amplifying external differential clocks;
- a first termination control unit coupled between a terminal for an internal voltage and the terminal for the ground voltage, coupled with a first output terminal for the internal differential clocks, and configured to control impedance incorporated into a first internal differential clock in response to first termination control signals;
- a second termination control unit coupled between the terminal for the internal voltage and the terminal for the ground voltage, coupled with a second output terminal for the internal differential clocks, and configured to control impedance incorporated into a second internal differential clock in response to second internal termination control signals;
- a second differential amplification unit coupled between the terminal for the internal voltage and the terminal for the ground voltage and configured to generate an internal synchronization signal by amplifying the internal differential clocks having the impedances controlled by the first and the second termination control units;
- and
- a duty correction unit coupled between the terminal for the internal voltage and the terminal for the ground voltage and configured to duty of the internal synchronization signal.
3 more elements
Dependencies are inferred from the claim text.