Semiconductor device and operating method thereof
AssigneeSK hynix Inc.
InventorsKwan-Su SHON, Taek-Sang SONG
Life of this patent
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Abstract
A semiconductor device includes a plurality of driving units configured to drive an output node based on an input signal and be on/off controlled based on driving force control codes, respectively, a slew rate control signal generation block configured to generate a slew rate control signal based on the driving force control codes, and a plurality of signal delay units configured to delay the input signal by respectively different delay amounts, transfer resultant signals to the plurality of driving units, and be respectively controlled in their delay amounts based on the slew rate control signal.
Claims20
A semiconductor device comprising:
- a plurality of driving units configured to drive an output node based on an input signal and be on/off controlled based on driving force control codes, respectively;
- a slew rate control signal generation block configured to generate a slew rate control signal based on the driving force control codes;
- and
- a plurality of signal delay units configured to delay the input signal by respectively different delay amounts, transfer resultant signals to the plurality of driving units, and be respectively controlled in their delay amounts based on the slew rate control signal.
A semiconductor device comprising:
- a plurality of first driving units configured to drive an output node based on an input signal with a first logic level, and be on/off controlled based on driving force control codes, respectively;
- a plurality of second driving units configured to drive the output node based on the input signal with a second logic level, and be on/off controlled based on the driving force control codes, respectively;
- a slew rate control signal generation block configured to generate a slew rate control signal based on the driving force control codes;
- a plurality of first signal delay units configured to delay the input signal with the first logic level by respectively different delay amounts, transfer resultant signals to the plurality of first driving units, and be respectively controlled in their delay amounts based on the slew rate control signal;
- and
- a plurality of second signal delay units configured to delay the input signal with the second logic level by respectively different delay amounts, transfer resultant signals to the plurality of second driving units, and be respectively controlled in their delay amounts based on the slew rate control signal.
An operating method of a semiconductor device, comprising:
- a slew rate control operation of delaying an input signal by a plurality of different delay amounts, outputting a plurality of delayed input signals, and controlling the plurality of delay amounts based on driving force control codes;
- and
- a driving force control operation of selecting a predetermined number of delayed input signals among the plurality of delayed input signals based on the driving force control codes, and driving an output node in response in parallel to the selected signals.
Dependencies are inferred from the claim text.