CTAN has a new package: tikz-timing

[CTAN announcements (Jim Hefferon, tug.ctan.org)]

This package has been put up at tug.ctan.org and should within a day be at your
local mirror.

Thanks,
Jim Hefferon
Saint Michael's College

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The following information was provided by our fellow contributor:

Name of contribution: tikz-timing
Author's name: Martin Scharrer
Location on CTAN: /graphics/pgf/contrib/tikz-timing
Summary description: Easy generation of timing diagram as tikz pictures.
License type: lppl

Announcement text: 
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This package provides macros and an environment to generate
timing diagrams (digital waveforms) without much effort. The
TikZ package is used to produce the graphics. The diagrams
can be inserted into text (paragraphs, \hbox, etc.) and into
tikzpictures. A tabular-like environment is provided to
produce larger timing diagrams. 
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This package is located at 
   http://tug.ctan.org/tex-archive/graphics/pgf/contrib/tikz-timing
.  More information is at
   http://tug.ctan.org/pkg/tikz-timing
(if the package is new it may take a day for that information to 
appear).  We are supported by the TeX Users Group http://www.tug.org .  
Please join a users group; see http://www.tug.org/usergroups.html .