[sdiy] 4042 latch question

[harrybissell]

<wizard of oz mode on>

You don't want a 4050. Many people have 4050s and still can't
translate from low to high.

what you WANT is a MC14504 Hex buffer / level shifter... which can
translate in both directions.

</WoO>

I don't know if there are any sources of this chip today... and you might
consider some of the Panasonic transistor packages that have the resistors
built in....

A ULN2804 with a sip pullup package is OK if inverting operation is desired.

H^) harry

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
>
>