Semiconductor memory device and control method having data...

Details Semiconductor memory device and control method having data... Semiconductor memory device and control method having data...

2007-05-29

2007-05-29

Nguyen, VanThu (Department: 2824)

Static information storage and retrieval

Floating gate

Data security

C365S195000

Reexamination Certificate

active

11126869

ABSTRACT:
A semiconductor device includes a first memory cell array that includes memory cells for storing data and is managed on a sector basis, a second memory cell array including memory cells storing sector protection information on the sector basis, and a control circuit checking the sector protection information stored in the second memory cell array whenever the sector to be programmed or erased is selected. Thus, the sector protection information in all the sectors does not have to be latched at the time of power on. The latch circuit equal in number to the sector does not have to be provided. It is thus possible to reduce the number of the circuits drastically and the chip area can be reduced.

REFERENCES:
patent: 5673222 (1997-09-01), Fukumoto et al.
patent: 6490197 (2002-12-01), Fasoli
patent: 7085158 (2006-08-01), Jeon et al.
patent: 2003/0117844 (2003-06-01), Kawamata
patent: 10-188577 (1998-07-01), None
patent: 11-120781 (1999-04-01), None
patent: 2001-319484 (2001-11-01), None

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