Patent ID: 9064554
Filing Date: 2015-06-23
Classification: G11C

Abstract:
1. A data input/output circuit comprising: a precharge voltage supply unit configured to supply a precharge voltage driven by a first internal voltage in a standby state, and supply the precharge voltage driven by a second internal voltage in response to a first and second control signals when an active operation is performed; and a precharge unit configured to receive the precharge voltage, precharge a first input/output line and a first inverted input/output line to a level of the first internal voltage in the standby state, and precharge the first input/output line and the first inverted input/output line by the second internal voltage when the active operation is performed, wherein the first control signal is disabled during a period in which the active operation and a read operation are performed, and the second control signal is enabled during the period in which the read operation is performed.