SEMICONDUCTOR MEMORY DEVICE COMPRISING OUTPUT DRIVER FOR HIGH FREQUENCY OPERATION

摘要

PURPOSE: A semiconductor memory device comprising an output driver for a high frequency operation is provided to output high frequency data without data distortion. CONSTITUTION: According to the semiconductor memory device(700) comprising an output driver(710) where the first and the second NMOS transistor(N1,N2) are connected serially and a drain of the first NMOS transistor is connected to an output pad(DQ) and a source of the second NMOS transistor is connected to a ground voltage(VSS), the first internal voltage(VGATE) is applied to a gate of the first NMOS transistor and the second internal voltage(VINT) is applied to a gate of the second NMOS transistor. The second internal voltage has a level lower than an external power supply voltage.