Patent ID: 11909393
Assignee: SK HYNIX INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. The input/output circuit of claim 18,
wherein the pull-up driving circuit comprises a first pull-up driving circuit and a second pull-up driving circuit,
wherein the drivability of the first pull-up driving circuit is set to a greater drivability than the drivability of the second pull-up driving circuit, and
wherein the fixed voltage generation circuit is configured to:
activate a driving enable signal on the basis of the output enable signal which is activated when the first pull-up driving circuit pulls up the voltage of the pad or the pull-down driving circuit pulls down the voltage of the pad,
activate the driving enable signal on the basis of the input enable signal which is activated when a Tx signal is received through the pad, and
activate the driving enable signal on the basis of the output enable signal which is activated when the second pull-up driving circuit pulls up the voltage of the pad.