Semiconductor device including clock signal generation unit
First Claim
1. A semiconductor device comprising:
- a processor;
a clock signal generation unit to receive a first strobe signal and a second strobe signal to generate a clock signal to be provided to the processor; and
a data reception unit to receive at least one data signal to provide the received data signal to the processor,wherein the clock signal generation unit comprises;
a strobe comparator to compare a voltage of a first input terminal with a voltage of a second input terminal to output logic high or logic low according to a result of comparison;
a first switch to selectively connect one of a first signal line by which the first strobe signal is transmitted and a second signal line by which the second strobe signal is transmitted, to the first input terminal;
a second switch to selectively connect one of the second signal line and a reference line to the second input terminal, the reference line being a line by which a reference voltage is transmitted from the data reception unit; and
a voltage stabilizing circuit to pull up or pull down at least one of a voltage of the first signal line and a voltage of the second signal line.
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Accused Products
Abstract
A semiconductor device for stably generating a clock signal from a strobe signal includes a processor, a clock signal generation unit receiving a first strobe signal and a second strobe signal to generate the clock signal, and a data reception unit receiving at least one data signal to provide the received data signal to the processor. The clock signal generation unit may comprise a strobe comparator comparing a voltage of a first input terminal with that of a second input terminal to output logic high or logic low, a first switch selectively connecting one of a first and a second signal line to the first input terminal, a second switch selectively connecting one of the second signal line and a reference line to the second input terminal, and a voltage stabilizing circuit pulling up/down at least one of a voltage of the first and the second signal line.
16 Citations
19 Claims
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1. A semiconductor device comprising:
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a processor; a clock signal generation unit to receive a first strobe signal and a second strobe signal to generate a clock signal to be provided to the processor; and a data reception unit to receive at least one data signal to provide the received data signal to the processor, wherein the clock signal generation unit comprises; a strobe comparator to compare a voltage of a first input terminal with a voltage of a second input terminal to output logic high or logic low according to a result of comparison; a first switch to selectively connect one of a first signal line by which the first strobe signal is transmitted and a second signal line by which the second strobe signal is transmitted, to the first input terminal; a second switch to selectively connect one of the second signal line and a reference line to the second input terminal, the reference line being a line by which a reference voltage is transmitted from the data reception unit; and a voltage stabilizing circuit to pull up or pull down at least one of a voltage of the first signal line and a voltage of the second signal line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A semiconductor device comprising:
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a processor; a clock signal generation unit to receive a first strobe signal and a second strobe signal to generate a clock signal to be provided to the processor; and a data reception unit to receive at least one data signal to provide the received data signal to the processor, wherein the clock signal generation unit comprises; a strobe comparator to compare a voltage of a first input terminal with a voltage of a second input terminal to output logic high or logic low according to a result of comparison; a first switch to selectively connect one of a first signal line and a reference line to the first input terminal, the first signal line being a first line by which the first strobe signal is transmitted, and the reference line being a second line by which a reference voltage is transmitted from the data reception unit; a second switch to selectively connect one of a second signal line and the reference line to the second input terminal, the second signal line being a third line by which the second strobe signal is transmitted; and a voltage stabilizing circuit to pull up or pull down at least one of a voltage of the first signal line and a voltage of the second signal line. - View Dependent Claims (14, 15)
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16. A semiconductor device, comprising:
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a clock signal generation unit configured to generate a clock signal based on a differential signal received as a strobe signal including a first strobe signal and a second strobe signal, the clock signal generation unit comprising; a voltage stabilizing unit; and a comparator having a first input terminal and a second input terminal and configured to output a high level or low level logic signal based on a comparison of voltage of each of signals received at the first and second input terminals; a first switch configured to selectively transmit one of the first strobe signal, the second strobe signal, and a reference voltage signal to the first input terminal; and a second switch configured to selectively transmit either the second strobe signal or the reference voltage signal to the second input terminal; a processor configured to control operation of the voltage stabilizing unit, wherein the voltage stabilizing unit comprises a first pull-up/pull-down unit configured to selectively pull up or pull down at least one of the first and second strobe signals to a high or low logic level through a first resistance, and a second pull-up/pull-down unit configured to selectively pull up or pull down at least one of the first and second strobe signals to a high or low logic level through a second resistance different from the first resistance. - View Dependent Claims (17, 18, 19)
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Specification