| 摘要 |
PURPOSE:To make the operation stable, by providing a circuit means writing a voltage of a power supply voltage or over to a capacitor of memory cell and detecting data with a balanced type sense amplifier without using a dummy cell. CONSTITUTION:A transfer gate transistor TM and an information storage capacitor CM constitute one memory cell 2. Between a preamplifier 3 transmitting and receiving data on a pair of data lines DL, DL through input and output lines I/O, I/O and the data lines DL, DL, transfer gate transistors T9 and T10 the gates of which are connected to a column line CL are connected. A capacitor C1 is connected between the data lines DL and a clock signal line phi3 and a refresh circuit 4 is provided. The data line DL is provided with similar memory cell 2' and refresh circuits 4'. |
