Symbol example (Lepton EDA Reference Manual 1.9.18)

4.1.8 Symbol example

This section provides a simple example which tries to follow all of the above rules. This symbol is of a 7400 (NAND gate).

v 20031231 1
L 300 200 300 800 3 0 0 0 -1 -1
T 300 0 9 8 1 0 0 0 1
7400
L 300 800 700 800 3 0 0 0 -1 -1
T 500 900 5 10 0 0 0 0 1
device=7400
T 500 1100 5 10 0 0 0 0 1
slot=1
T 500 1300 5 10 0 0 0 0 1
numslots=4
T 500 1500 5 10 0 0 0 0 1
slotdef=1:1,2,3
T 500 1700 5 10 0 0 0 0 1
slotdef=2:4,5,6
T 500 1900 5 10 0 0 0 0 1
slotdef=3:9,10,8
T 500 2100 5 10 0 0 0 0 1
slotdef=4:12,13,11
L 300 200 700 200 3 0 0 0 -1 -1
A 700 500 300 270 180 3 0 0 0 -1 -1
V 1050 500 50 6 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
P 1100 500 1300 500 1 0 1
{
T 1100 550 5 8 1 1 0 0 1
pinnumber=3
T 1100 450 5 8 0 1 0 2 1
pinseq=3
T 950 500 9 8 0 1 0 6 1
pinlabel=Y
T 950 500 5 8 0 1 0 8 1
pintype=out
}
P 300 300 0 300 1 0 1
{
T 200 350 5 8 1 1 0 6 1
pinnumber=2
T 200 250 5 8 0 1 0 8 1
pinseq=2
T 350 300 9 8 0 1 0 0 1
pinlabel=B
T 350 300 5 8 0 1 0 2 1
pintype=in
}
P 300 700 0 700 1 0 1
{
T 200 750 5 8 1 1 0 6 1
pinnumber=1
T 200 650 5 8 0 1 0 8 1
pinseq=1
T 350 700 9 8 0 1 0 0 1
pinlabel=A
T 350 700 5 8 0 1 0 2 1
pintype=in
}
T 300 900 8 10 1 1 0 0 1
refdes=U?
T 500 2250 5 10 0 0 0 0 1
footprint=DIP14
T 500 2450 5 10 0 0 0 0 1
description=4 NAND gates with 2 inputs
T 500 2850 5 10 0 0 0 0 1
net=Vcc:14
T 500 3050 5 10 0 0 0 0 1
net=GND:7
T 500 2650 5 10 0 0 0 0 1
documentation=http://www-s.ti.com/sc/ds/sn74hc00.pdf

This example produces the following (using lepton-schematic):

This is the same symbol with all the hidden text visible (via Edit → Show/Hide Inv Text):