Semiconductor integrated circuit having a pre-charged operation and a

Abstract

In a semiconductor integrated circuit having the function of executing a pre-charge operation of a data bus when data is transferred to the data bus from a plurality of driver circuits connected to the data bus, a reset circuit for executing the pre-charge operation of the data bus is constituted so as to start the pre-charge operation of the data bus upon receiving an end timing of a strobe signal. Preferably, the reset circuit detects that the data bus reaches a pre-charge level for executing the pre-charge operation, and then terminates the pre-charge operation. On the other hand, in a semiconductor integrated circuit having a data latch function by a pipeline system when the data is read out from a memory cell, etc., in synchronism with a clock, a plurality of latch circuit units for temporarily storing the data are disposed in a data read path, and each of these latch circuit units is constituted in such a manner as to allow the data to pass, as such, when a control signal for controlling data latch is inputted, and to latch the data when the control signal is not inputted.