Some data and calculations to support my previous post:
For the Jag, the schematic is available. The turn-on threshold is 1.6ma max. The silicon drop across the LED is approx 1.2V at 3ma. There's a 150 ohm series resistor. So to push 3ma thru the Jag's input would require 1.2+0.003*150=1.65 volts at the input.
For the Vic, I have some
test data.
So if the 3.3 volt source is low impedance, it will most likely work just fine.