On Fri, 30 Aug 1996 09:39:21 -0400 "Mark A. Corio" <Mcorio@AOL.COM>
writes:
>Hi all,
>
>Does anyone know of a 7-segment LED driver that is serial loaded?  I
need to
>drive 4 digits from a PIC and don t want to use a lot of pins?  Any
other way
>to do this?  The cheaper the better (of course).  Thanks.

You might want to consider the 5450 or 5451 from Micrel.  It is a 34 or
35 segment LED display driver that works like a large shift register.
The outputs are latched so that data does not appear on the display
while shifting in.  Display brightness can be controlled by a single
resistor.  All segments are controlled individually, so it's very
flexible.  You can get info on this from Micrel's web page
(http://www.micrel.com).


                                        Peace,
                                        William Kitchen