| 摘要 |
An input part and a feedback part are arranged in series between a second power supply line and input nodes of inverting circuits. The input part connects the second power supply line to one of the input nodes of the inverting circuits in accordance with an input signal. One of the inverting circuits operates so that a logical value corresponding to the input signal is latched into a latching part. The feedback part connects only one of the input nodes to the input part in accordance with an output level of the latching part, thereby fixing the latching state of the latching part. Since the number of stages of circuits from the input part to the latching part can be reduced, the input signal can be latched reliably even when the power supply voltages are low.
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