Re: Electronic, off subject

Tim Goldstein wrote:

> From: "Tim Goldstein" <timg@...>
>
> Hello all,
>
> I have an electronics question that some of you electronic gurus may be able
> to help me with.
>
> 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