You need to press +/- while hovering the bar, before clicking. The "pin overlay" will reflect the change and when you actually click you will insert the right number of pins.
Hey! As far as I know, a RAM uses an index or an adress or whatever you call it. That means that the 64bit are split up into eight 8bit registers. That way, you need:
8 bits data 3 bits index 1 bit store 1 bit clock
This gives you a total of 13 inputs. And it actually has 13 inputs, not 14
