Level shifter and level shifting method
AssigneeSamsung Electronics Co., Ltd.
InventorYang Kim
Life of this patent
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Abstract
A level shifter and method of level shifting between an input signal and an output signal which may realize improvement s in operating speed and reductions in power consumption. An example level shifter may include a pull-up signal generation unit outputting a pull-up signal at a voltage level that is a given voltage level higher than a voltage level of an input signal, a pull-up unit pulling-up an output signal in response to the pull-up signal to generate the output signal with a shifted level, and a pull-down unit pulling-down the output signal in response to the input signal.
Claims17
A level shifter, comprising:
- a pull-up signal generation unit outputting a pull-up signal at a voltage level that is a given voltage level higher than a voltage level of an input signal,
- a pull-up unit pulling-up an output signal in response to the pull-up signal to generate the output signal with a shifted level, and
- a pull-down unit pulling-down the output signal in response to the input signal.
A method of level shifting between an input signal and an output signal, comprising:
- generating a pull-up signal at a voltage level that is given amount higher than a voltage level of the input signal;
- and
- pulling-down the output signal when the input signal is at a low level, and pulling-up the output signal using the pull-up signal when the input signal is at a high level,
- wherein the level of the pulled-up output signal is higher than a supply voltage of the input signal.
Dependencies are inferred from the claim text.