NON-VOLATILE MEMORY DEVICE, WRITE-IN METHOD FOR NONVOLATILE MEMORY, AND NONVOLATILE MEMORY WRITE-IN PROGRAM

摘要

PPROBLEM TO BE SOLVED: To complete write-in processing without changing total processing time even when the write-in error of a non-volatile memory is generated. PSOLUTION: A first non-volatile memory (MLC-NAND memory) 102 and a second non-volatile memory element (SLC-NAND memory) 103 whose characteristics are different are connected to a common data bus and an address bus. A duplexing write-in circuit 106 simultaneously selects the first non-volatile memory 102 and the second non-volatile memory 103 based on a duplexing signal (enable signal) from a CPU 101, and writes the duplexed data in the second non-volatile memory element 103 when writing the data in the first non-volatile memory 102. PCOPYRIGHT: (C)2010,JPO&INPIT