| 摘要 |
PURPOSE: To separate a sense node from a bit line during the assertion of a sense signal and to eliminate the occurrence of a current spike by providing the sense amplifier including a decoupling means. CONSTITUTION: A first sense node X of a sense amplifier 16 is connected to a bit line B through the source and the drain terminals of a decoupling transistor P4 and a second sense node Y is connected to a bit line-B through the source and the drain terminals of a decoupling transistor P5. The drain of a transistor 5 is connected to the node X, the gate is connected to the node Y and the source is connected to a node Z. The drain of an enable transistor N7 is connected to the sources of transistors N5 and N6 at the node Z, the sources are connected to a power supply terminal VSS or a ground potential and the gate is connected to a line 28 to receive a sense signal C3. Thus, the sense node is separated from the bit line during the assertion of the sense signal. |
