4000
74
IEC417
allegro
altera
amphenol
analog
apex
asic
asicpads
bus
cascade
connector
dec
diode
ecl
idt
io
irf
lattice
linear
maxim
memory
micro
minicircuits
misc
national
opto
philips
pla
power
radio
relay
rf
spice
st
supervisor
switcap
switch
titleblock
transistor
tube
xilinx