Nonvolatile memory device extracting parameters and nonvolatile memory system including the same

#This U.S. non-provisional patent application claims priority under 35 U.S.C. §119 of Korean Patent Application No. 10-2008-74746 filed on Jul. 30, 2008, the entire contents of which are incorporated herein by reference.

#Example embodiments disclosed herein are related to nonvolatile memory devices, for example, to a flash memory device extracting parameters therefrom.

#Nonvolatile memory devices, such as flash memory devices, are electrically erasable and programmable read-only memories (EEPROMs) in which a plurality of memory regions are erased or written with data by one-time operation of programming. A traditional EEPROM is operable such that a single memory region is erasable or programmable at a time. Thus, the flash memory device operates more rapidly and effectively in reading and writing data when systems employing the flash memory device read/write data from/into different memory regions at the same time. Many types of flash memory devices or EEPROMs are usually configured in structure such that insulation films enclosing charge storage elements used for storing data are inevitably worn out after a specific number of operations.

#Non-limiting and non-exhaustive example embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts throughout the various figures unless otherwise specified. In the figures:

#FIG. 1 is a block diagram of a memory system according to example embodiments;

#FIG. 2 is another block diagram of a memory system according to example embodiments;

#Example embodiments will now be described more fully with reference to the accompanying drawings. In the drawings, the thicknesses of layers and regions may be exaggerated for clarity.

#It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.

#It will be understood that when an element is referred to as being “connected” or “coupled” to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being “directly connected” or “directly coupled” to another element, there are no intervening elements present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., “between” versus “directly between”, “adjacent” versus “directly adjacent”, etc.).