Abstract: Provided are an integrated circuit and a method thereof, in which different types of signals can be applied to an internal circuit via one pin. The integrated circuit device includes a distribution unit, a level fixing unit, and an activation unit. The distribution unit receives and outputs a first input signal input via the first input pin, and receives and outputs a second input signal input via the first input pin in response to a control signal. The level fixing unit receives the first input signal from the distribution unit and applies a signal having the same voltage level as the first input signal to a first internal circuit in response to the control signal. The activation unit receives the second input signal input via the second input pin and then applies the second input signal to a second internal circuit or applies the second input signal output from the distribution unit to the second internal circuit in response to the control signal.

Abstract: Data input receivers reproduce data signals, and methods detect data signals in data input receivers. The invention receives an input data signal and two reference signals, which may be complementary. A first voltage difference between the input data signal and the first reference signal is amplified, and a second voltage difference between the input data signal and the second reference signal is amplified. The amplified first voltage difference and the amplified second voltage difference are received on the same pair of output terminals, which are then compared to generate the reproduced data signal.

Abstract: In the semiconductor integrated circuit, an apparatus for detecting a logic state represented by an input signal includes a reference signal generating circuit and a determining circuit. The reference signal generating circuit generates a reference voltage based on a previously received input signal voltage, and the determining circuit determines a logic state represented by a currently received input signal voltage based on the reference voltage.

Abstract: Data input receivers reproduce data signals, and methods detect data signals in data input receivers. The invention receives an input data signal and two reference signals, which may be complementary. A first voltage difference between the input data signal and the first reference signal is amplified, and a second voltage difference between the input data signal and the second reference signal is amplified. The amplified first voltage difference and the amplified second voltage difference are received on the same pair of output terminals, which are then compared to generate the reproduced data signal.