SEMICONDUCTOR MEMORY DEVICE AND METHOD FOR READING DATA FOR IMPROVING OPERATION SPEED

摘要

A semiconductor memory device and a data read method for improving operation speed in a burst mode are provided to improve the operation speed by enabling a plurality of word lines at the same time in the burst mode. In a semiconductor memory device(300) receiving a row address and a column address at the same time for a write or read operation, a plurality of memory mats(312,322) comprises plural word and column selection lines, respectively, and enables a corresponding word line in response to a word line selection signal, and enables a corresponding column selection line in response to a column selection line selection signal. A control circuit(350) calculates an end address ending data read by receiving a start address starting data read in a burst mode, and outputs the word line selection signal for selecting at least one address to which addresses from the start address to the end address belongs.