Multiplexing a big 7-seg display with MAX7219

Using Arduino LEDs and Multiplexing
8

f_giorgio:
Thank you, I'm going to buy a SN74HC04 the next week, It should had the right parameters for the ULN2003. Hoping to solve the problem.

Datasheet

±4-mA Output Drive at 5 V

Same problem with 74HC04 =(