| 摘要 |
A semiconductor integrated circuit having a selector 1, which selects either an inverted signal 2B or a non-inverted signal 2A, based on the condition of a read strobe signal RDST that gives an instruction for readout of data in the logic circuit 10 into the read buffer 20, a first flip-flop circuit 2, which latches the signal selected by the selector 1 at the timing of the internal clock signal CK, and outputs the latched signal 2A to the selector 1, a second flip-flop circuit 3, which shifts the output signal 2A of the first flip-flop circuit 2 at the timing of the internal clock signal CK, and an exclusive-OR circuit 4, which takes the exclusive OR of the output signal 2A of the first flip-flop circuit 2 and the output signal 3A of the second flip-flop circuit 3, the output signal of the exclusive-OR circuit 4 serves as a clock signal RCK for readout of the read buffer 20.
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