Static information storage and retrieval – Addressing – Sync/clocking
Reexamination Certificate
2005-08-16
2005-08-16
Yoha, Connie C. (Department: 2827)
Static information storage and retrieval
Addressing
Sync/clocking
C365S185170, C365S189050, C365S201000, C365S226000, C365S228000
Reexamination Certificate
active
06930954
ABSTRACT:
A non-volatile semiconductor memory device includes a memory cell array having electrically erasable and programmable non-volatile memory cells, a part of the memory cell array being defined as a initial set-up data region for storing a plurality of initial set-up data that define memory operation conditions, data latch circuits for holding the initial set-up data read out from the initial set-up data region, a controller for controlling data program and erase operations for the memory cell array, and a clock generator for generating a clock signal that is used to define an operation timing of the controller, wherein the controller is configured to perform such an initial set-up operation that sequentially reads out the plurality of initial set-up data stored in the initial set-up data region and transfers them to the respective data latch circuits on receipt of power-on or a command input, the initial set-up operation being so performed as to read out a clock cycle adjustment data within the plurality of initial set-up data stored in the initial set-up data region in the beginning, thereby adjusting a clock cycle of the clock signal output from the clock generator by use of the clock cycle adjustment data, and then reads out the remaining initial set-up data by use of the adjusted clock signal.
REFERENCES:
patent: 4451903 (1984-05-01), Jordan
patent: 6052313 (2000-04-01), Atsumi et al.
patent: 6462985 (2002-10-01), Hosono et al.
patent: 6643180 (2003-11-01), Ikehashi et al.
patent: 6741499 (2004-05-01), Imamiya et al.
patent: 6751122 (2004-06-01), Kawai et al.
patent: 6760256 (2004-07-01), Imamiya
patent: 2001-176290 (2001-06-01), None
Imamiya Kenichi
Kawai Koichi
Hogan & Hartson LLP
Kabushiki Kaisha Toshiba
Yoha Connie C.
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