NON VOLATILE MEMORY DEVICE AND A METHOD OF OPERATING THE SAME, CAPABLE OF STORING A COLUMN TEST RESULT THEREIN WITHOUT OUTPUTTING THE COLUMN TEST RESULT TO THE OUTSIDE

摘要

PURPOSE: A non volatile memory device and a method of operating the same are provided to reduce a test time by storing failed column address and IO data in the non volatile memory device.;CONSTITUTION: A data comparison unit(351) outputs a clock signal and a fail I/O signal according to a comparison result of first with second data. Controllers(354,355) transfer an inputted address according to the clock signal to a register unit. A data register counter(352) outputs an address counting signal of the register according to the clock signal. An address decoder(353) decodes the register address of the register unit. An address decoder outputs a control signal enabling a corresponding register. A first comparison unit outputs a first comparison signal by using comparison data.;COPYRIGHT KIPO 2010