\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{tikz-timing}
\usetikztiminglibrary[rising arrows]{clockarrows}
\usepackage{xparse} % NewDocumentCommand, IfValueTF, IFBooleanTF

% Reference a bus.
%
% Usage:
%
%     \busref[3::0]{C/BE}    ->   C/BE[3::0]
%     \busref*{AD}           ->   AD#
%     \busref*[3::0]{C/BE}   ->   C/BE[3::0]#
%
\NewDocumentCommand{\busref}{som}{\texttt{%
#3%
\IfValueTF{#2}{[#2]}{}%
\IfBooleanTF{#1}{\#}{}%
}}

\title{Waveform drawing}
\author{peteraa }
\date{June 2019}

\begin{document}

\begin{tikztimingtable}[%
    timing/dslope=0.1,
    timing/.style={x=5ex,y=2ex},
    x=5ex,
    timing/rowdist=3ex,
    timing/name/.style={font=\sffamily\scriptsize}
]
\busref{CLK}         & 32{c} \\
\busref{A}           & 1D{5} 1D{0} 1D{4} 1D{8} 1D{1} 1D{6} 1D{6} 1D{2} 1D{9} 1D{0} 1D{8} 1D{3} 1D{9} 1D{3} 2U \\
\busref{B}           & 1D{8} 1D{3} 1D{3} 1D{2} 1D{7} 1D{6} 1D{7} 1D{8} 1D{5} 1D{2} 1D{7} 1D{1} 1D{8} 1D{2} 2U \\
\busref{VALID}       & 6U 1H 6U 1H 2U\\
\busref{Output}      & 1D{40} 1D{40} 1D{52} 1D{68} 1D{75} 1D{111} 1D{153} 1D{16} 1D{61} 1D{61} 1D{117} 1D{120} 1D{192} 1D{198} 2U\\
\extracode
\begin{pgfonlayer}{background}
\begin{scope}[semitransparent ,semithick]
\vertlines[darkgray,dotted]{0.5,1.5 ,...,8.0}
\end{scope}
\end{pgfonlayer}
\end{tikztimingtable}

\maketitle

\section{Introduction}

\end{document}