DECODING TECHNIQUES FOR READ-ONLY MEMORY

摘要

A memory circuit includes a number of bit line structures, each including at least three bit lines; a number of word lines that intersect with the bit line structures at a number of sites; and a number of switching devices located at the sites. A number of column sense logic units are also provided, corresponding to the bit line structures. Each of the column sense logic units includes a first logic gate and a second logic gate. The first logic gate has a first input connected with a first one of the bit lines and a second input connected with a second one of the bit lines. The second logic gate has a first input interconnected with a third one of the bit lines, and a second input interconnected with the second one of the bit lines.