| 摘要 |
PURPOSE:To facilitate high integration by arranging the flip-flop circuit of a 1st conductive type and 2nd conductive type by separating individually between a pair of bit lines and respectively performing the sensing motion and restoring motion corresponding to a cell by the respective conductive type flip-flop circuit. CONSTITUTION:An N-type flip-flop circuit 5 and P-type flip-flop circuit 6 are separately arranged to perform a sensing motion and restoring motion respectively by controlling the MOS transistors 20-24 which are each a switching means. The number of elements of a sensing amplifier per block (cell alley) is reduced to 1/2. The increase in the occupied area can be prevented even in the case of the number of block divisions being made larger.
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