RE: Electronic, off subject

> > I am trying to make a device that will count the number of times a hall
> > sensor or an optical sensor (either would work for my purpose)
> is tripped.
> > The total count will never exceed the capacity of a 4 digit
> display and the
> > frequency of the count will never exceed 200/sec. I have read
> about IC that
> > incorporate both a counter and a LED display and only require a
> connection
> > to the sensor and power, but have not been able to locate one
> or recognize
> > it from the the listings of ICs that most supplies provide.
> >
> > Can anyone point me to the right item or a source that may be
> able to help
> > me.
>
> You want an Intersil (was Harris) ICM7216DIPI or an ICM7217 (several
> variations for differnet LED types). Digi-Key stocks them.
>
> Jon

I've needed to do this before also. Maxim has the same chip with the same
part number (ICM 7217). Is Maxim now Intersil (was Harris)? Here's the
link I have to the Maxim data sheet:

http://209.1.238.250/arpdf/1501.pdf

Carlos Guillermo