multiple inputs for logic gates

Question

In the manual , section 5.1.1 Logical ports

All logical ports, except not, have two inputs and one output.

It seems the inputs are limited to two. All solutions I've found are using or gate US rather than american nor port which the command in the new update. In my case, I need to add three inputs to my following case,

\documentclass[border={10pt}]{standalone}
\usepackage{tikz}
\usetikzlibrary{positioning}
\usepackage[siunitx,european,american]{circuitikz}
\usetikzlibrary{circuits.logic.US,circuits.logic.IEC}
\begin{document}
\begin{tikzpicture}
    [%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
        block/.style={fill=blue!20,draw=red!70,thick,minimum width=3cm,minimum height=3.5cm}
    ]%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\draw (0,0)
  node[block] (P1) {block} 
  ($(P1.north)$) coordinate (P1n)
  ($(P1.south)$) coordinate (P1s)
  ($(P1.east)$)  coordinate (P1e)
  (P1n) to[short,-o] ++(0, .2) coordinate (p1n) node[left] {$p1$}
  (P1s) to[short,-o] ++(0,-.2) coordinate (p1s) node[left] {$p2$}
  (P1e) to[short,-o] ++(0,0) coordinate (p1e) node[left]   {$p3$}
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  (P1) ++(4,0)  node[american nor port] (And1) {}
  (p1n) -|  (And1.in 1) (p1s) -| (And1.in 2); 

\end{tikzpicture}
\end{document}

See http://tex.stackexchange.com/questions/94607/3-input-logic-gate-on-circuitikz, maybe will be of help — Zarko, Oct 11 '15 at 18:50
There is also (And1.west). See also http://tex.stackexchange.com/questions/155487/three-or-more-leg-xor-gate-for-tikz/156859#156859 — John Kormylo, Oct 11 '15 at 18:55
As I said, the solutions are not working with american nor port. — CroCo, Oct 12 '15 at 08:17

score 1 · Accepted Answer · answered Jul 28 '16 at 19:56

You are right. Some of the anchor points for this component are in odd locations.

\documentclass[border={10pt}]{standalone}
\usepackage{tikz}
\usetikzlibrary{positioning}
\usepackage[siunitx,european,american]{circuitikz}
\usetikzlibrary{circuits.logic.US,circuits.logic.IEC,calc}
\begin{document}
\begin{tikzpicture}
    [%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
        block/.style={fill=blue!20,draw=red!70,thick,minimum width=3cm,minimum height=3.5cm}
    ]%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\draw (0,0)
  node[block] (P1) {block} 
  ($(P1.north)$) coordinate (P1n)
  ($(P1.south)$) coordinate (P1s)
  ($(P1.east)$)  coordinate (P1e)
  (P1n) to[short,-o] ++(0, .2) coordinate (p1n) node[left] {$p1$}
  (P1s) to[short,-o] ++(0,-.2) coordinate (p1s) node[left] {$p2$}
  (P1e) to[short,-o] ++(0,0) coordinate (p1e) node[left]   {$p3$}
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  (P1) ++(4,0)  node[american nor port] (And1) {}
  (p1n) -|  (And1.in 1) (p1s) -| (And1.in 2)
  (P1e) -- ($(And1.west)!0.33!(And1.east)$);

\end{tikzpicture}
\end{document}

multiple inputs for logic gates

1 Answers1