| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductor device equipped with a register control delay lock loop (DLL) capable of reducing current consumption caused by unnecessary toggling of DLL clock. <P>SOLUTION: The semiconductor device comprising an internal circuit that uses a DLL clock outputted from a register control DLL, includes a means for generating clock enable signals for enabling or disabling the DLL clock applied to the internal circuit, in response to an operation signal and a non-operation signal for the semiconductor device. The means for generating the clock enable signals includes: a driving means that executes pull-down or pull-up operation in response to the operation signal or non-operation signal; a reset means for resetting the output node of the driving means in response to the operation signal for the semiconductor device; and an output means which latches the signal applied to the output node of the driving means, and outputs it after buffering. <P>COPYRIGHT: (C)2011,JPO&INPIT |
