Clock generator having DLL and semiconductor device having clock

Details Clock generator having DLL and semiconductor device having clock Clock generator having DLL and semiconductor device having clock

1997-10-30

1999-10-19

Wells, Kenneth B.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327158, 327156, H03K 513

Patent

active

059695510

ABSTRACT:
A clock generator including a DLL occupying a small area and a semiconductor device including the clock generator have been disclosed. In the clock generator for generating a plurality of clocks optimally adjusted in phase for a plurality of objects on the basis of a received clock, the DLL is structured hierarchically. A first DLL of a parent level is used in common and second DLLs of child levels are associated with input signals.

REFERENCES:
patent: 4165490 (1979-08-01), Howe, Jr. et al.
patent: 5087829 (1992-02-01), Ishibashi et al.
patent: 5515403 (1996-05-01), Sloan et al.
patent: 5552726 (1996-09-01), Wichman et al.
patent: 5710744 (1998-01-01), Suda

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