Newbie tinyduino output voltage level

[driveguy]

I have an LED array I would like to run with a tinydunio. It has the MAX7219 chip on it which I think is 5V.  Spec sheet says it is.  Are the Tinyduino's outputs 5V or do I need a voltage level converter?  If I need a converter, any suggests on one about the size of the tiny?