Patent ID: 9607670
Date: 2017-03-28
CPC Classifications: G11C

Claim:
1. A data input circuit, comprising: a data latch unit suitable for latching input data as latch data in response to first and second latch signals; a data signal generation unit suitable for outputting first and second data signals corresponding to the latch data; a first drive unit suitable for pulling up or down a first input/output data line of an input/output data line pair in response to the first and second data signals; and a second drive unit suitable for pulling up or down a second input/output data line of the input/output data line pair in response to the first and second data signals, wherein each of the first and second drive units performs a first pull-up operation or a second pull-up operation in response to a data input control signal during a pull-up operation to increase a potential level of the first or second input/output data line, and a pull-up level of the first pull-up operation is lower than a pull-up level of the second pull-up operation.