[sdiy] 4042 latch question

[fmg]

>From +5 up to +30 74LS07 / 74LS17 (hex) or 74LS641 (octal). You
also need 1k to 10k pull-ups. For 74xx-4xxx matching I found 4k7
pull-up packs works fine.

Fabio


René Schmitz wrote:
> 
> Peter Grenader wrote:
> 
> >You mean i'm going to have to install...transistors????  i hate having to
> >duts with transistors.  Would a 4050 see that 5 volt high? (its quoted as
> >being able to do voltage converstions).
> 
> 4050 can do a high-volt to low-volt conversion, as its inputs withstand being
> driven beyond the supply voltage for that chip. For a low-volt to high-volt
> conversion the 40109 is your friend. Or use a 74LS06/07 open collector driver.
> 
> Cheers,
>  René
> 
> --
> uzs159 at uni-bonn.de
> http://www.uni-bonn.de/~uzs159
> 
>