Semiconductor device having input buffers to which internally-generated reference voltages are applied

摘要

A semiconductor device is constructed by at least one reference voltage generating circuit for generating a reference voltage, a plurality of input voltage pads for receiving input voltages, a control signal pad for receiving a control signal, and a plurality of input buffers. Each of the input buffers amplifies a difference between one of the input voltages and the reference voltage to generate an output voltage, and includes a switch connected between the reference voltage generating circuit and one of the input voltage pads and controlled by the control signal.