Sensing-amplifying device
AssigneesJiangsu Advanced Memory Technology Co., Ltd., Alto Memory Technology Corporation
InventorJui-Jen Wu
Life of this patent
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Abstract
A sensing-amplifier device includes a first input terminal, a second input terminal, a reference unit, and a sense amplifier. The reference unit is configured to provide a reference signal. The switching unit is selectively coupled to the first input terminal, the second input terminal, and a reference unit. The sense amplifier includes two terminals. The two terminals of the sense amplifier are coupled to the first input terminal and the second input terminal respectively by switching of the switching unit so as to operate in a twin memory unit mode, or one terminal of the sense amplifier is coupled to the first input terminal or the second input terminal and the other terminal of the sense amplifier is coupled to the reference unit by switching of the switching unit so as to operate in a single memory unit mode.
Claims8
A sensing-amplifying device, comprising:
- a first input terminal, coupled to a first memory unit;
- a second input terminal, coupled to a second memory unit;
- a reference unit, configured to provide a reference signal;
- a switching unit, selectively coupled to the first input terminal, the second input terminal, and the reference unit;
- and
- a sense amplifier, comprising two terminals, wherein the two terminals of the sense amplifier are coupled to the first input terminal and the second input terminal respectively by switching the switching unit so as to operate in a twin memory unit mode, or one terminal of the sense amplifier is coupled to the first input terminal or the second input terminal and the other terminal of the sense amplifier is coupled to the reference unit by switching the switching unit so as to operate in a single memory unit mode, and
- wherein the two terminals of the sense amplifier are a first terminal and a second terminal respectively, wherein the switching unit comprises:
- a first switch, selectively coupled to the first input terminal and the first terminal of the sense amplifier;
- a second switch, selectively coupled to the second input terminal and the second terminal of the sense amplifier, wherein when operating in the twin memory unit mode, the first switch is turned on to couple to the first input terminal and the first terminal of the sense amplifier, and the second switch is turned on to couple to the second input terminal and the second terminal of the sense amplifier;
- and
- a third switch, selectively coupled to the reference unit and the second terminal of the sense amplifier, wherein when operating in the single memory unit mode, the first switch is turned on to couple to the first input terminal and the first terminal of the sense amplifier, and the third switch is turned on to couple to the reference unit and the second terminal of the sense amplifier.
A sensing-amplifying device, comprising:
- a current mirror, comprising a first output terminal and a second output terminal;
- a first transistor, comprising a first terminal which is coupled to the first output terminal of the current mirror;
- a second transistor, comprising a first terminal which is coupled to the second output terminal of the current mirror;
- a first comparator, comprising a first input terminal, a second input terminal, and a first output terminal, wherein the first input terminal is configured to receive a first bias signal, the second input terminal is coupled to a second terminal of the first transistor, and the first output terminal is coupled to a control terminal of the first transistor;
- a second comparator, comprising a third input terminal, a fourth input terminal and a second output terminal, wherein the third input terminal is configured to receive a second bias signal, the fourth input terminal is coupled to a second terminal of the second transistor, and the second output terminal is coupled to a control terminal of the second transistor;
- a reference unit, configured to provide a reference signal;
- a first input terminal, coupled to a first memory unit;
- a second input terminal, coupled to a second memory unit;
- a switching unit, selectively coupled to the first input terminal, the second input terminal, and the reference unit;
- and
- a sense amplifier, comprising two terminals, wherein the two terminals of the sense amplifier are coupled to the first input terminal and the second input terminal respectively by switching the switching unit so as to operate in a twin memory unit mode, or one terminal of the sense amplifier is coupled to the first input terminal or the second input terminal and the other terminal of the sense amplifier is coupled to the reference unit by switching the switching unit so as to operate in a single memory unit mode.
Dependencies are inferred from the claim text.