Input buffer circuit
First Claim
1. An apparatus comprising:
- a first voltage switch configured to provide a first power supply voltage from a first power terminal responsive to a clock signal;
a first amplifier configured to receive a first input voltage and a second input voltage, and further configured to provide a first intermediate voltage on a first node and a second intermediate voltage on a second node, responsive to the first power supply voltage provided by the first voltage switch;
a second voltage switch configured to provide a second power supply voltage from a second power terminal responsive to one of the first intermediate voltage and the second intermediate voltage; and
a second amplifier configured to provide one of a first output voltage and a second output voltage responsive to the second power supply voltage from the second voltage switch,wherein the second amplifier is configured to be activated via the second voltage switch by one of a first precharge voltage from a third node responsive to the first intermediate voltage of the first node. and a second precharge voltage from the third node responsive to the second intermediate voltage of the second node.
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Accused Products
Abstract
Apparatuses for receiving an input signal in a semiconductor device are described. An example apparatus includes: a first amplifier that provides first and second intermediate voltages responsive to first and second input voltages; first and second voltage terminals; a circuit node; a first transistor coupled between the first voltage terminal and the circuit node and is turned on responsive to at least one of the first and second intermediate voltages; a second amplifier including first and second inverters, at least one of the first and second inverters being coupled between the circuit node and the second voltage terminal; and first and second output nodes, the first output node being coupled to an input node of the first inverter and an output node of the second inverter, and the second output node being coupled to an output node of the first inverter and an input node of the second inverter.
60 Citations
15 Claims
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1. An apparatus comprising:
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a first voltage switch configured to provide a first power supply voltage from a first power terminal responsive to a clock signal; a first amplifier configured to receive a first input voltage and a second input voltage, and further configured to provide a first intermediate voltage on a first node and a second intermediate voltage on a second node, responsive to the first power supply voltage provided by the first voltage switch; a second voltage switch configured to provide a second power supply voltage from a second power terminal responsive to one of the first intermediate voltage and the second intermediate voltage; and a second amplifier configured to provide one of a first output voltage and a second output voltage responsive to the second power supply voltage from the second voltage switch, wherein the second amplifier is configured to be activated via the second voltage switch by one of a first precharge voltage from a third node responsive to the first intermediate voltage of the first node. and a second precharge voltage from the third node responsive to the second intermediate voltage of the second node. - View Dependent Claims (2, 3)
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4. An apparatus comprising:
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a first voltage switch configured to provide a first power supply voltage from a first power terminal responsive to a clock signal; a first amplifier configured to receive a first input voltage and a second input voltage, and further configured to provide a first intermediate voltage on a first node and a second intermediate voltage on a second node. responsive to the first power supply voltage provided by the first voltage switch; a second voltage switch configured to provide a second power supply voltage from a second power terminal responsive to one of the first intermediate voltage and the second intermediate voltage; a second amplifier configured to provide one of a first output voltage and a second output voltage responsive to the second power supply voltage from the second voltage switch; and a first transistor coupled between the first node and a fourth node, and a second transistor coupled between the second node and a fifth node, wherein the second amplifier is configured to provide the one of the first output voltage to the fourth node, and the second output voltage to the fifth node. - View Dependent Claims (5, 6)
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7. An apparatus comprising:
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a first voltage switch configured to provide a first power supply voltage from a first power terminal responsive to a clock signal; a first amplifier configured to receive a first input voltage and a second input voltage, and further configured to provide a first intermediate voltage on a first node and a second intermediate voltage on a second node. responsive to the first power supply voltage provided by the first voltage switch; a second voltage switch configured to provide a second power supply voltage from a second power terminal responsive to one of the first intermediate voltage and the second intermediate voltage; a second amplifier configured to provide one of a first output voltage and a second output voltage responsive to the second power supply voltage from the second voltage switch; and a third transistor configured to provide a first precharge voltage from a first precharge terminal to a gate of the second voltage switch, and a fourth transistor configured to provide a second precharge voltage from a second precharge terminal to the gate of the second voltage switch. - View Dependent Claims (8, 9)
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10. An apparatus comprising:
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a first voltage switch configured to provide a first power supply voltage from a first power terminal responsive to a clock signal; a first amplifier configured to be activated by the first power supply voltage, and further configured to receive a first input voltage and a second input voltage and provide a first intermediate voltage on a first node and a second intermediate voltage on a second node; a second voltage switch coupled to a third node and configured to provide a second power supply voltage from a second power terminal responsive to one of the first intermediate voltage and the second intermediate voltage; a first transistor coupled between the first node and a fourth node and a second transistor coupled between the second node and a fifth node; and a second amplifier configured to provide one of a first output voltage and a second output voltage to the fourth node and the fifth node, respectively, responsive to the second power supply voltage received from the second voltage switch. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification