Method for writing data in a non volatile memory unit

Details Method for writing data in a non volatile memory unit Method for writing data in a non volatile memory unit

2008-08-01

2009-12-29

Phung, Anh (Department: 2824)

Static information storage and retrieval

Floating gate

Particular connection

C365S185280, C365S185290

Reexamination Certificate

active

07639537

ABSTRACT:
A method for writing data in a non volatile memory unit having memory pages includes a predetermined number of memory cells storing a memory word being a predetermined sequence of digital values. An erase operation erases the memory words in the memory page, setting the predetermined sequence of digital values to a sequence of complementary values. A program operation stores in the memory cell a word and sets a sequence of a word to be stored. For the memory cells of the memory page, the memory word is compared with the word to be stored. A positive check is returned if complementary values of the sequence correspond to complementary values of the predetermined sequence. If the check is negative, the erase operation is executed. The memory word is compared with the word to be stored and the program operation is executed if the word to be stored is different.

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