Internal voltage generating circuit
AssigneeHynix Semiconductor Inc.
InventorsKang-Seol LEE, Jae-Hyuk Im
Life of this patent
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Abstract
There is an internal voltage generating circuit for providing a stable high voltage by making a response time short. The internal voltage generating circuit includes a charge pump unit for generate a high voltage being higher than an external voltage in response to pumping control signals and a supply driving control signal; a pumping control signal generating unit for outputting the pumping control signals to the charge pump unit based on a driving signal; and a supply driving control unit for receiving the driving signal to generate the supply driving control signal to the charge pump unit.
Claims20
An internal voltage generating circuit for stably supplying a high voltage, comprising:
- a charge pump unit for generate a high voltage being higher than an external voltage in response to pumping control signals and a supply driving control signal;
- a pumping control signal generating unit for outputting the pumping control signals to the charge pump unit based on a driving signal;
- and
- a supply driving control unit for receiving the driving signal to generate the supply driving control signal to the charge pump unit.
A semiconductor memory device for stably supplying a high voltage, comprising:
- a charge pump unit for generating a high voltage being higher than an external voltage in response to pumping control signals and a supply driving control signal;
- an oscillator for generating a periodic signal in response to a driving signal, without detecting a level change of the high voltage;
- a pumping control signal generating unit for generating the pumping control signals for outputting the pumping control signals to the charge pump unit based on the periodic signal;
- and
- a supply driving control unit for receiving the periodic signal to generate the supply driving control signal to the charge pump unit.
Dependencies are inferred from the claim text.