Nonvolatile memory apparatus
AssigneeSK hynix Inc.
InventorsChang Yong AHN, Yoon Jae SHIN
Life of this patent
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Abstract
A nonvolatile memory apparatus includes a memory cell configured to receive a first current and a second current through a bit line which is connected to a sensing node; a sensing node level control unit configured to be driven in response to a control signal, compare a reference voltage and a voltage of the sensing node, and output a driving signal to a driving node; a first current driving unit configured to output the first current to the driving node by using a first driving voltage in response to the driving signal; and a current control unit configured to perform a discharge operation of the bit line or electrically connect the driving node and the sensing node, in response to the control signal.
Claims29
A nonvolatile memory apparatus comprising:
- a memory cell configured to receive a first current and a second current through a bit line which is connected to a sensing node;
- a sensing node level control unit configured to be driven in response to a control signal, compare a reference voltage and a voltage of the sensing node, and output a driving signal to a driving node;
- a first current driving unit configured to output the first current to the driving node by using a first driving voltage in response to the driving signal;
- and
- a current control unit configured to perform a discharge operation of the bit line or electrically connect the driving node and the sensing node, in response to the control signal.
A nonvolatile memory apparatus comprising:
- a memory cell configured to receive first current and second current through a bit line which is connected to a sensing node;
- a first current supply block configured to compare a first reference voltage and a voltage of a sensing node and output the first current to a first driving node by using a first driving voltage, according to a control signal;
- a first current control unit configured to perform a discharge operation of the bit line or electrically connect the first driving node and the sensing node, in response to the control signal;
- a second current supply block configured to compare a second reference voltage and a voltage of the sensing node and output the second current to a second driving node by using a second driving voltage, according to the control signal;
- and
- a second current control unit configured to perform a discharge operation of the bit line or electrically connect the second driving node and the sensing node, in response to the control signal.
A nonvolatile memory apparatus comprising:
- a memory cell configured to receive a current through a bit line which is connected to a sensing node;
- a sensing node level control unit coupled between a driving node and the sensing node, and configured to receive a control signal and a reference voltage and output a driving signal;
- a first current driving unit configured to output the current to the driving node;
- and
- a current control unit coupled between the driving node and the sensing node.
A nonvolatile memory apparatus comprising:
- a memory cell configured to receive first current and second current through a bit line which is connected to a sensing node;
- a first sensing node level control unit coupled between a first driving node and the sensing node, and configured to receive a control signal and a first reference voltage and output a first driving signal;
- is a first current driving unit configured to output the first current to the driving node;
- a first current control unit coupled between the driving node and the sensing node;
- a second sensing node level control unit coupled between a second driving node and the sensing node, and configured to receive a control signal and a second reference voltage and output a second driving signal;
- a second current driving unit configured to output the second current to the second driving node;
- and
- a second current control unit coupled between the second driving node and the sensing node.
Dependencies are inferred from the claim text.