| 摘要 |
PURPOSE:To decrease the number of transistors (TRs) for precharge of a sense amplifier circuit by using only a P type load TR connected to a power supply voltage to perform precharging. CONSTITUTION:In bringing timing signal lines L'3, L'4 and L'5 without any output of information to data lines L'1, L'2, N type TRs Q'1, Q'2 and Q'5 are turned off and the P type TRQ11 is turned on. Then, the P type TRs Q'6, Q'7 for load whose sources are connected to the power supply voltage are turned on and sense output lines L'6, L'7 are precharged in response to the threshold value of the TRs Q'6, Q'7. Thus, the precharge using two P type load TRs is attained, the number of TRs for precharge of the sense amplifier circuit is reduced and the pattern area is reduced. |
