Multiplexing 7 segment displays with a 4511 chip

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i need output 20 x 7-segment displays displaying sensor outputs, using various sensors , modules. planning use cd4511 chip , transister multiplex, such in attached picture.
my question is- how many displays can 4511 handle?  can 1 chip all, or rule of 8s apply in case?
thanks in advance replies.
rob. 

here better picture


Arduino Forum > Using Arduino > LEDs and Multiplexing > Multiplexing 7 segment displays with a 4511 chip


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