Voltage level shifter and semiconductor device having the same therein
AssigneeHynix Semiconductor Inc.
InventorSaeng Hwan KIM
Life of this patent
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Abstract
A voltage level shifter and a semiconductor device having the same are presented. The voltage level shifter includes a swing width transformer and a power supply controller. The swing width transformer receives an input signal that ranges between a first level power voltage and a ground voltage and is configured to generate a signal that ranges between a second level power voltage and that of the ground voltage. The power supply controller is configured to control power supply to the swing width transformer in response to an enable signal activated in an active mode.
Claims23
A level shifter, comprising:
- a swing width transformer configured to receive an input signal that ranges between a first level power voltage and a ground voltage and configured to generate an output signal that ranges between a second level power voltage and the ground voltage;
- and
- a power supply controller configured to control power supply to the swing width transformer in response to an enable signal in an active mode state.
A level shifter, comprising:
- a swing width transformer configured to receive an input signal ranging between a first level power voltage and a ground voltage and to generate a signal ranging between a second level power voltage and the ground voltage;
- and
- a power supply controller configured to control a voltage level of an internal node of the swing width transformer in response to an enable signal activated in an active mode.
A semiconductor device, comprising:
- an enable signal generator configured to generate an enable signal activated in an active mode and configured to generate an inverted enable signal activated in a standby mode;
- a first level shifter controlled by the inverted enable signal to generate a first output signal by transforming a first input signal into a first level power voltage;
- and
- a second level shifter having an internal node controlled by the enable signal to generate a second output signal by transforming a second input signal into a second level power voltage.
Dependencies are inferred from the claim text.