Dante … Faye M… Rudra … Ilmari…

Who is able to design a fault-shifter circuit interface that allows a 5V TTL output to safely drive a 3.3V CMOS input? The circuit must tolerate the 5V logic high and limit the input to 3.3V with a safe margin for the target. It should also be robust against possible faults to provide a professional and secure connection for the hardware.