SEMICONDUCTOR MEMORY DEVICE AND OPERATION METHOD THEREOF

摘要

PURPOSE: A semiconductor memory device and a driving method thereof are provided to reduce manufacturing cost of a semiconductor memory device by reducing time required for test operation. CONSTITUTION: A latency signal generation unit(210) generates a latency signal corresponding to a read command and an operating frequency. An output enable signal generation unit(220) generates the output enable signal by synchronizing the latency signal to a DLL(Delay Locked Loop) clock signal. An output order decision unit(230) synchronizes the sequence signal to the DLL clock signal.