| 摘要 |
PURPOSE:To enable a user to select and decide an input circuit and an output circuit connected between plural terminals and word lines of an array part for each terminal, by forming a breaking part or a short-circuiting part at a proper area. CONSTITUTION:Plural bit lines 3 are provided together with word lines 11 and 12 which can be used for both input and output lines crossing the lines 3 and an input circuit 4, an output circuit 6, etc. connected to lines 11 and 12. Furthermore, the breaking or short-circuiting parts 20-25 consisting of fuses, transistors, etc. are formed among terminals 30-35 serving as input or output terminals, the circuits 4 and 6 corresponding to these terminals, a buffer 9 and lines 11 and 12 respectively. Those parts 20-25 are connected to a breaking or short- circuiting circuit 10. In such constitution, a user can select and decide the input and output circuits connected between plural terminals and word lines of an array part for each terminal. |
