How much current can the GPIO outputs source/sink?
I couldn't find anything about that in the RA3050 data sheet, only power supply currents.

I want to connect opto-couplers to the outputs to control a KeyMatic door unlocker,
and I'm wondering if I can connect them directly or if I need transistors to amplify the current.

I guess that the LEDs on the development board use about 5mA.

Jürgen

re

Thanks for the very quick reply.
Looks like it will work fine with the opto-coupler driven directly by the port.

This table is a bit confusing because both IOL and IOH have the same description 'Low Level Output Current'. If you connect a LED which draws less than 10mA it should be no problem. For higher currents the information in the table becomes more important though.