| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable the high speed operation of the judgement of read data even if the data are reverse data of the data of a previous cycle. SOLUTION: The potential of a bit line 11 is subjected to feedback control in accordance with its potential fluctuation by a bias circuit 13. On the other hand, the data previously read out into the bit line 11 are temporarily held by a D-type flip-flop 16 and the offset is given to a reference voltage Vref determined by the bias circuit 13 by an offset circuit 15 making reference to the previous data values held by the D-type flip-flop 16.</p> |
