Board-layout with the HV5530 can be an issue, so I connect the tube-pins to
the easiest route on the driver IC. That gives a clean board layout (zero
feedthrus for tube signals) but scrambles-up the bits. Unscrambling them
in RTL code or software is easy, though.
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The 74141 has 55 volt transistors. You can use the SN75468 which has 100
volt transistors, for more voltage margin. It can be controlled by the
74HC595 shift register.
The 44 pin chip does replace a lot of smaller parts, but I prefer to use
many smaller parts, because the board layout is more sens
+1 for the HV5530
I have a 14-tube clock with IN-18's driven by six HV5530's, and have had no
issues other than some mild cathode poisoning (my fault) which is easily
cured.
I strongly recommend using a level-translator IC when controlling the
HV5530 from 3.3/5.0 VDC controllers; others have ha
I would say the HV5530 is the best all around driver nixie IC. It comes in
a 44 lead quad flat pack or J lead plcc, the latter of which can be placed
in a plastic socket that is thru-hole soldered onto the board. It is driven
like a regular shift register (like the 74HC595). Shift in 32 bits, each
Hello everyone.
Since becoming an addict about two years ago I have built many kits and
have now started down the road of building my own clock - albeit a very
simple one.
My query centres around the use of 74141's (or the Russian version) as
direct drivers for tubes.
>From what I have tried so
