Do you have a 5V power supply for the relay coils? How are you going to switch the 5V, 110 mA pulse required by the coils with 3.3V outputs? That relay is available in a 3V version but you still face the problem of switching a high current (probably around 180 mA at 3V) with a 12 mA rated output, even though it should be a short (10 mS) pulse?