SRAM HAVING CELL INCLUDING STORAGE CAPACITOR AND METHOD FOR INPUTTING WRITE DATA THEREOF

摘要

PURPOSE: An SRAM having a cell including a storage capacitor and a method for inputting write data thereof are provided to perform stably a write operation and a refresh operation by improving a structure of a circuit for performing the refresh operation and the write operation. CONSTITUTION: A refresh circuit(100) is used for driving a refresh operation according to a driving operation of a refresh timer. A write enable buffer(113) is used for storing a write enable signal. A delay signal driving portion(110) receives a refresh signal of the refresh circuit(100) and an output signal of the write enable buffer(113) and drives a delay signal. A write latch control portion(111) outputs a write latch control signal in response to a delayed clock of the write enable buffer(113). An address buffer(106) is synchronized with a clock edge of an internal clock signal in order to buffer selectively an external address or an internal address of a refresh counter(105).