Semiconductor device and semiconductor system for detecting voltage-drop level
AssigneeSK hynix Inc.
InventorJong-Man Im
Life of this patent
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Abstract
A semiconductor device includes a voltage adjust circuit suitable for generating an adjusting voltage according to a counting signal; an oscillating circuit operable by an oscillating control signal, and suitable for outputting an operational clock signal whose frequency is controlled by the adjusting voltage; a pumping circuit suitable for generating an internal voltage by pumping a source voltage according to the operational clock signal; and a counting circuit suitable for generating the counting signal by counting the operational clock signal according to the oscillating control signal.
Claims17
A semiconductor device comprising:
- a voltage adjust circuit suitable for generating an adjusting voltage according to a counting signal;
- an oscillating circuit operable by an oscillating control signal, and suitable for outputting an operational clock signal whose frequency is controlled by the adjusting voltage;
- a pumping circuit suitable for generating an internal voltage by pumping a source voltage according to the operational clock signal;
- and
- a counting circuit suitable for generating the counting signal by counting the operational clock signal according to the oscillating control signal.
A semiconductor device comprising:
- a voltage adjust circuit suitable for generating an adjusting voltage according to a counting signal;
- a reference voltage generation circuit suitable for adjusting a voltage level of a reference voltage according to the adjusting voltage;
- a detecting circuit suitable for outputting an oscillating control signal by comparing the reference voltage with an internal voltage;
- an oscillating circuit suitable for outputting an operational clock signal in response to the oscillating control signal;
- a pumping circuit suitable for generating the internal voltage by pumping a source voltage according to the operational clock signal;
- and
- a counting circuit suitable for generating the counting signal by counting the operational clock signal according to the oscillating control signal.
A semiconductor system comprising:
- a first semiconductor device that includes a voltage adjust circuit suitable for generating an adjusting voltage according to a counting signal;
- and
- a second semiconductor device that includes:
- a voltage generation circuit operable by an oscillating control signal, and suitable for outputting an operational clock signal according to the adjusting voltage and generating an internal voltage by pumping a source voltage according to the operational clock signal;
- and
- a counting circuit suitable for generating the counting signal by counting the operational clock signal according to the oscillating control signal.
Dependencies are inferred from the claim text.