NON-VOLATILE MEMORY DEVICE, METHOD OF OPERATING THE SAME, AND SEMICONDUCTOR SYSTEM HAVING THE SAME

摘要

PURPOSE: A non-volatile memory device, a method of operating the same, and a semiconductor system having the same are provided to prevent a data error in reading or verifying by adjusting an operation time of determining the program of a memory or fail. CONSTITUTION: In a non-volatile memory device, a method of operating the same, and a semiconductor system having the same, an operation voltage is supplied to the word line of a selected nonvolatile memory cell. The operation voltage is one of plus or minus. . An operation time is adjusted according to the operation voltage. The threshold voltage of a nonvolatile memory cell is higher or lower than operation voltage is determined by the operation time.