Greetings,
        I am building a moving message display. It is 7 rows x 80 columns.
Multiplexing will be accomplished by loading shift registers with column
data and the powering sequential rows for 1.64mS each. Therefore, each row
will be refreshed once every 11.5mS.
        Is the refresh rate frequent enough to eliminate flicker? Can I
refresh at a slower rate? I sure could use the extra time for other tasks,
but I don't want a flickery display!!

Thanks!                      Jeff