3

A can't find examples about what I want to do with the circuitTikZ package. I want to put a letter and a black port at the left of this circuit and I want the nand4 to act like an inverter.

\begin{circuitikz} \draw
(0,2) node[nand port] (nand4) {}
(2,3) node[nand port] (nand3) {}
(4,2) node[nand port] (nand2) {}
(0,0) node[nand port] (nand1) {}
(nand1.out) |- (nand2.in 2)
(nand4.out) |- (nand3.in 2)
(nand3.out) |- (nand2.in 1)
;\end{circuitikz}

enter image description here

  • 3
    I have no idea what an "inverter" is or what do you mean by a "black port"; can you please add a hand-drawn image of the intended result? – Gonzalo Medina Mar 3 '15 at 14:31
  • I forgot the letters. One letter at the left of each port. – Arturo Mar 3 '15 at 14:39
3

One possibility:

\documentclass{article}
\usepackage{circuitikz}

\begin{document}

\begin{circuitikz} 
\draw
  (0,2) node[nand port] (nand4) {}
  (2,3) node[nand port] (nand3) {}
  (4,2) node[nand port] (nand2) {}
  (0,0) node[nand port] (nand1) {}
  (nand1.out) |- (nand2.in 2)
  (nand4.out) |- (nand3.in 2)
  (nand3.out) |- (nand2.in 1)
  ;
\draw 
    ([xshift=-1cm]nand1.in 1) 
      coordinate (aux) node[left] {$c$} to[short,*-] 
    (nand1.in 1);
\draw 
    ([xshift=-1cm]nand1.in 2) 
        node[left] {$d$} to[short,*-] 
    (nand1.in 2);
\draw 
    (aux|-nand3.in 1) 
        node[left] {$a$} to[short,*-] 
    (nand3.in 1);
\draw
  (nand4.in 1) -- coordinate (middle) (nand4.in 2);
\draw 
    (aux|-middle) 
        node[left] {$b$} to[short,*-] 
    (middle);
\end{circuitikz}

\end{document}

enter image description here

|improve this answer|||||
  • How can I learn to do this? I already saw the documentation. – Arturo Mar 3 '15 at 16:52
  • @Arturo since circuitikz is based on PGF/TikZ, learning some of the latter can be helpful. – Gonzalo Medina Mar 3 '15 at 16:54
  • These NAND gates are really ugly... is there a package dedicated specifically to rendering digital circuits, you know, nicely? – Dmitri Nesteruk Sep 29 '16 at 22:24

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.