Patent ID: 7424559
Filing Date: 2008-09-09
Classification: G11C

Abstract:
1. An input/output byte control device using a nonvolatile ferroelectric register, comprising: a common data bus controller for controlling data inputted/outputted in a common data bus unit connected to a plurality of cell array blocks; a byte conversion switching unit for selectively connecting one of an upper byte bus and a lower byte bus to a lower byte input/output bus; an input/output buffer comprising a lower byte input/output buffer connected to the lower byte input/output bus and an upper byte input/output buffer connected to the upper byte bus; a pad array unit comprising a lower byte pad array for inputting/outputting data of the lower byte input/output buffer and an upper byte pad array for inputting/outputting data of the upper byte input/output buffer; and an input/output byte controller for outputting control signals to control the common data bus, the byte conversion switching unit and the input/output buffer, and to selectively activate byte size of the pad array unit depending on a code programmed in a nonvolatile ferroelectric register.