| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To hold reliability of binary data when multi-level data and binary data are mixed and stored in one page. <P>SOLUTION: A memory cell array 21 has a plurality of pages, multi-level data is stored in a first region of each page, and binary data is stored in predetermined second region. When binary data is read out from one page of the memory cell array 21, a voltage generating circuit 31 generates read-out voltage being lower than read-out voltage when multi-level data is read out, and supplies it to a word line of a non-selection page. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
