elektryk
Advanced Member level 4
How big is maximum current per pin? In LVTTL it is said +/-24mA minimal. For testing purpose I want to connect LED diodes to FPGA structure, but there is no documented limitation of safe maximal current per pin (it is no so important) and per port (it may be important, because whole current goes thru Vcco pins and ground pins). So is there any limitations? Another question, I would like to add some high-current outputs to my module, I found quite cheap ULN2803/5 chips is it be apropriate?