Multilevel storage nonvolatile semiconductor memory device...

Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition

Reexamination Certificate

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C711S170000, C365S189080, C365S189110, C365S189120, C365S230060, C365S230080, C365S189150, C365S189160

Reexamination Certificate

active

07949823

ABSTRACT:
A nonvolatile semiconductor memory device transmits/receives data to/from a data input/output terminal every j bits (e.g., eight bits). Each of memory cells in a memory cell array can hold data of n bits in correspondence to 2nthreshold levels. A write data conversion circuit generates write data from bit data input from the same data input/output terminal in a set of a plurality of data of j bits input at different timings.

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