krotus
Newbie level 4
Hi, I have bus with 2x 74LS374 outputs side and 8x 74LS374 inputs side attached to it. I want to connect mcu (avr) to this bus and add some protection for the case I select some 74LS374 with outputs attached to the bus and forget to switch mcu port to input mode. Resistors in series between mcu and bus would be propable cheapest solution but what value should I use, also with respect to bus (layed on pcb) and 74LS374 inputs capacitance? Thanks.