INCREASING MEMORY PERFORMANCE IN FLASH MEMORY DEVICE BY SIMULTANEOUSLY WRITING SECTORS TO MULTIPLE DEVICES

摘要

PROBLEM TO BE SOLVED: To provide a digital system which has the entire performance increased and has the manufacturing expenses reduced, by adopting a non-volatile memory for storage of digital information organized in a sector format in order to shorten the time required for read and write operations. SOLUTION: A controller transfers information organized in sectors, each of which includes a user data portion and an overhead portion between a host and a non-volatile memory bank, and simultaneously stores and reads two-byte sectors relating to the same sector in two non-volatile memory devices. Each non-volatile memory device is defined by a row of memory locations wherein corresponding rows of at least two semiconductor devices maintain of two sectors of information therein together with overhead information relating to the two sectors maintained in one of memory rows of the non-volatile memory device. COPYRIGHT: (C)2005,JPO&NCIPI