Patent ID: 7499348

Claim:
An apparatus for sensing data of a semiconductor integrated circuit, the apparatus comprising: a plurality of first driving signal driving units, each of which includes a first inverter having an output and a second inverter configured to receive the output of the first inverter, and is configured to generate a first driving signal by driving a first input signal; a plurality of second driving signal driving units, each of which is configured to generate a second driving signal by driving a second input signal and; a timing control unit configured to generate an output signal to control each of the first driving signal driving units such that a predetermined time difference is generated between an enable timing of the first driving signal and an enable timing of the second driving signal, wherein the output signal of the timing control unit is input to the first driving signal units, wherein the timing control unit comprises: 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 generate the output signal according to the delay time adjusting signal thereby providing the output signal to the first driving signal driving unit; a plurality of sense amplifier driving units, each of which is configured to generate a first driving level and a second driving level according to the first driving signal and the second driving signal; and a plurality of sense amplifiers, a respective sense amplifier provided for respective bit line pairs, each sense amplifier being configured to include first type switching elements operating according to the first driving level and second type switching elements operating according to the second driving level.