SEMICONDUCTOR MEMORY WHICH CAN PREVENT MALFUNCTION CAUSED BY LOAD OF COLUMN ADDRESS LINE

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor memory which can be normally operated even when a load of a column address line transmitting a column address is large and they are independent each other though it does not affect operation speed. SOLUTION: This semiconductor memory is provided with a column selection line driver 53 receiving a decoded address and driving a column selection line of a memory cell array 54 responding to a column selection line control signal, a column selection line control signal generator 55 receiving a part of a buffered column address and generating a column selection line control signal responding to either of first and second control signals and an internal clock signal, and a control signal generator 56 generating first and second control signals responding to an externally applied column address strobe signal, a write-in enable-signal, and an internal clock signal.