Patent ID: 11876647
Assignee: KIOXIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 2:
3. The method according to claim 1, wherein
each of the first circuits includes
a first pull-up circuit having a first terminal to which a first voltage is applied and a second terminal connected to the corresponding first input/output terminal,
a first pull-down circuit having a first terminal to which a second voltage smaller than the first voltage is applied and a second terminal connected to the corresponding first input/output terminal, and
a first comparator having a first input terminal to which a voltage of the corresponding first input/output terminal is applied and a second input terminal to which a third voltage between the first voltage and the second voltage is applied,

each of the second circuits includes
a second pull-up circuit having a first terminal to which the first voltage is applied and a second terminal connected to the corresponding second input/output terminal,
a second pull-down circuit having a first terminal to which the second voltage is applied and a second terminal connected to the corresponding second input/output terminal, and
a second comparator having a first input terminal to which a voltage of the corresponding second input/output terminal is applied and a second input terminal to which a fourth voltage between the first voltage and the second voltage is applied,

each of the third circuits includes
a third pull-up circuit having a first terminal to which the first voltage is applied and a second terminal connected to the corresponding third input/output terminal,
a third pull-down circuit having a first terminal to which the second voltage is applied and a second terminal connected to the corresponding third input/output terminal, and
a third comparator having a first input terminal to which a voltage of the corresponding third input/output terminal is applied and a second input terminal to which a fifth voltage between the first voltage and the second voltage is applied, and

each of the fourth circuits includes
a fourth pull-up circuit having a first terminal to which the first voltage is applied and a second terminal connected to the corresponding fourth input/output terminal,
a fourth pull-down circuit having a first terminal to which the second voltage is applied and a second terminal connected to the corresponding fourth input/output terminal, and
a fourth comparator having a first input terminal to which a voltage of the corresponding fourth input/output terminal is applied and a second input terminal to which a sixth voltage between the first voltage and the second voltage is applied.