| US 7,468,909 B2 | ||
| Semiconductor device and method of controlling the same | ||
| Masaru Yano, Tokyo (Japan); Kazuhide Kurosaki, Tokyo (Japan); and Mototada Sakashita, Tokyo (Japan) | ||
| Assigned to Spansion LLC, Sunnyvale, Calif. (US) | ||
| Filed on Dec. 11, 2006, as Appl. No. 11/637,260. | ||
| Application 11/637260 is a continuation in part of application No. PCT/JP2005/023021, filed on Dec. 15, 2005. | ||
| Prior Publication US 2007/0183211 A1, Aug. 09, 2007 | ||
| Int. Cl. G11C 11/34 (2006.01); G11C 16/06 (2006.01); G11C 5/06 (2006.01) | ||
| U.S. Cl. 365—185.05 [365/185.16; 365/185.17; 365/185.18; 365/185.23; 365/63] | 19 Claims |
| 1. A semiconductor device comprising:
a memory cell array that includes non-volatile memory cells;
a first selecting circuit that connects or disconnects a source and a drain of a transistor that forms one of the memory cells,
to or from a first power supply;
a second selecting circuit that connects or disconnects the source and drain to or from a second power supply;
the first selecting circuit and the second selecting circuit being arranged on the opposite sides of the memory cell array;
a first storage unit that stores first selecting information that indicates whether the source and drain are to be connected
to the first power supply, the first storage unit being connected to the first selecting circuit;
a second storage unit that stores second selecting information that indicates whether the source and drain are to be connected
to the second power supply, the second storage unit being connected to the second selecting circuit, wherein the first storage
unit and the second storage unit are provided on the same sides of the memory cell array as the first selecting circuit and
the second selecting circuit, respectively;
bit lines that connect the source and drain, the first selecting circuit, and the second selecting circuit; and
a control circuit that transfers the first selecting information stored in the first storage unit to the second storage unit
via the bit lines, the transferred first selecting information being the second selecting information.
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