Cfrgtkky

how can we draw logic circuits with 128 inputs without showing all the input that means we can draw a logic diagram with showing of 3 or 4 bits as input but how can we draw it 128 inputs with labeling of 1 or 2 inputs and other will be so on till 127 (without labeling) and 128th bit should be labeled .

First of all welcome to TeX.SE, from next time please show us what you have tried so far. We generally don't prefer do-it-for-me class of questions.

To begin your answer with, you can easily achieve this with circuits and positioning within tikzlibrary.

documentclass{standalone}

usepackage{tikz}

usetikzlibrary{circuits.logic.US,circuits.logic.IEC, positioning}

begin{document}

begin{tikzpicture}[minimum height=0.75cm] 

node[and gate US, draw,logic gate inputs=nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn] (A) {}; 

foreach a in {1,...,128}

draw (A.input a) -- ([xshift=-2cm]A.input a); 

draw (A.output) -- ([xshift=2cm]A.output);

% naming the nodes

node [left = 2.1cm of A.input 1] (n1) {1};

node [left = 2.1cm of A.input 2] (n2) {2};

node [left = 2.1cm of A.input 126] (n3) {126};

end{tikzpicture}   



end{document}

to get:

However, with ciruittikz, it is worth looking at:

Is it possible to implement multiple input logic ports with circuitikz?

How to invert Logic Gate input in Circuitikz

I think that, under the point of view of readability, a 128-port anything is too much. If you use the new (unreleased) version of circuitikz (you can find a snapshot in the github page) you are limited to a (still unreadable in my opinion) 16 pins.

I would do something like the following, and textually mark the wires that go to the big or with some kind of symbol... like this

documentclass[border=10pt]{standalone}

usepackage[siunitx, RPvoltages]{circuitikzgit}

begin{document}

begin{circuitikz}[

    ]

    ctikzset{logic ports origin=center}

    draw(0,0) node[dipchip, num pins=14, no topmark, 

    external pins width=0, hide numbers](A){};

    foreach i/l in {1/1, 2/2, 7/128} 

    draw (A.bpin i) node[right, font=tiny]{l} -- ++(-0.5,0) coordinate(my pin i);

    path (A.bpin 4) node[left]{$vdots$};

    draw (A.bpin 11) node[above right, font=tiny]{out} -- ++(0.5,0);

    path (A.center) node [american and port]{IC1};

    draw (my pin 1) -- ++(-0.5,0) node[american xnor port, anchor=out]{}; 

    draw (-4,-1) node[american xnor port](B){};

    draw [->] (B.out) -- ++(0.5,0) node[right, align=left]{to IC1\ pin 36};

end{circuitikz}

end{document}