Level shifter
First Claim
1. A level shifter comprising:
- a data input node;
a first inverter having its input connected to the data input node;
a second inverter connected to an output of the first inverter;
a data output node;
a latch having its output connected to the data output node;
a first NFET connected between an input of the latch and a ground potential, the first NFET having its gate electrode connected to an output of the second inverter; and
a second NFET connected between the data output node and the ground potential, the second NFET having its gate electrode connected to the output of the first inverter.
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Accused Products
Abstract
A level shifter having a data input node, a first inverter having its input connected to the data input node, a second inverter connected to an output of the first inverter, a data output node, a latch having its output connected to the data output node, a first NFET connected between an input of the latch and a ground potential, and having its gate electrode connected to an output of the second inverter, and a second NFET connected between the data output node and the ground potential, and having its gate electrode connected to the output of the first inverter. The level shifter provides for a conversion of a data signal from a power supply domain of 1.8 volts to one of 3.3 volts.
5 Citations
27 Claims
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1. A level shifter comprising:
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a data input node;
a first inverter having its input connected to the data input node;
a second inverter connected to an output of the first inverter;
a data output node;
a latch having its output connected to the data output node;
a first NFET connected between an input of the latch and a ground potential, the first NFET having its gate electrode connected to an output of the second inverter; and
a second NFET connected between the data output node and the ground potential, the second NFET having its gate electrode connected to the output of the first inverter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A level shifter comprising:
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first circuitry for receiving a data signal having a voltage swing from ground to 1.8 volts;
second circuitry for converting the data signal to have a voltage swing from ground to 3.3 volts; and
an output node for outputting the data signal with the voltage swing from ground to 3.3 volts. - View Dependent Claims (13, 14, 15)
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16. A data processing system comprising:
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a microprocessor and accompanying circuitry outputting data signals with a voltage swing magnitude of 1.8 volts;
level shifter circuitry for converting the voltage swing magnitude of the data signals from 1.8 volts to 3.3 volts; and
input/output circuitry for receiving the data signals with the voltage swing magnitude of 3.3 volts. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A level shifter comprising:
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a data input node;
a first NOR gate coupled to the data input node;
a second NOR gate coupled to an output of the first NOR gate;
a storage cell coupled to an output of the second NOR gate; and
a data output node coupled to an output of the storage cell. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification