Patent ID: 7760563

Claim:
An apparatus for sensing data of a semiconductor integrated circuit, the apparatus comprising: a sense amplifier configured to be coupled with bit line pairs and including a first type switching element operated by an RTO level and a second type switching element operated by an SB level; a SAP driver including a first inverter and a second inverter receiving an output signal of the first inverter and configured to drive a first input signal thereby generating a SAP driving signal for providing the RTO level; a SAN driver configured to drive a second input signal thereby generating a SAN driving signal for providing the SB level; a timing control unit including a delay time adjusting unit configured to output a delay time adjusting signal according to a level of an external power supply and an output delay unit configured to delay an output timing of an SAP driving signal of the SAP driver, configured to delay the sAP driving signal such that the SAP driving signal is enable later than the SAN driving signal, wherein the delay time adjusting unit is configured to control the output delay unit; and a sense amplifier driving units configured to generate the RTO level and the SB level according to the SAP driving signal and the SAN driving signal.