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US 7,888,979 B2Granted
Pad input signal processing circuit
AssigneeHynix Semiconductor Inc.
InventorKeun Kook Kim
Life of this patent
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Abstract
A pad input signal processing circuit includes a control unit for setting a level of a pad output terminal to which a first control signal is input in response to a power up signal, and a signal output unit for outputting a command signal in response to a signal of the pad output terminal and a second control signal.
Claims17
A pad input signal processing circuit comprising:
- a control unit configured to set a level of a pad output terminal in response to a power up signal and the level of the pad output terminal;
- and
- a signal output unit configured to output a command signal in response to a first control signal and a second control signal, wherein the first control signal is a deep power down mode entry signal which is supplied to the pad output terminal, and the second control signal is a deep power down mode entry signal activated by a command.
A pad input signal processing circuit comprising:
- a pad;
- an operating unit configured to perform a logic operation in response to a power up signal and a level of pad output terminal;
- a current sink unit configured to drive the pad output terminal in response to an output signal of the operating unit;
- and
- a signal output unit configured to output a command signal in response to the first control signal and a second control signal, wherein the first control signal is a deep power down mode entry signal which is supplied to the pad output terminal via the pad, and the second control signal is a deep power down mode entry signal activated by a command.
2 more elements
Dependencies are inferred from the claim text.