[![enter image description here][1]][1]

Seems like I am running out of I/O pins. I only have 6x 8bits pins (need 8 with multiplexing), and I want to power 5x 8 by 8 and 2x 7-seg displays. I don't want to use another ic. so is there a way?

  [1]: https://i.sstatic.net/bHum5.png