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Synchronous dynamic random access memory supplies power to delay locked loop circuit selectively during refresh mode, depending on selection signal output based on mode register set command
Synchronous dynamic random access memory supplies power to delay locked loop circuit selectively during refresh mode, depending on selection signal output based on mode register set command
A mode register set (MRS) signal generator generates a selection signal (PMRS), based on MRS command and key address, depending on which power is supplied to delay locked loop (DLL) circuit during refresh mode. An independent claim is also included for method of controlling delay locked loop circuit.
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