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CRLC663: general purpose output functionality

Question asked by Jonathan Frech on Feb 18, 2019
Latest reply on Feb 18, 2019 by Wigros Sun



We would like to make use of the additional general purpose outputs of the CRLC663 chip in a future project to save pins on a MCU.  We would like to use the Pins OUT0 to OUT3 which are usually for the boundary scan.


I've not found any information about the hardware functionality of the pins in the datasheet. The critical informations would be if the pins are either "voltage out" (like a MCU) or "sink" (eg. open drain) and how much current can be used per pin and in common. I know that some devices can provide like 5mA per port, but for example only 15mA in sum of all pins.


We aim to use 4 LED's which have 1-3mA per LED.

Also it would be interesting how the outputs react when the device is in reset or sleep mode.


Thank you for any information.