voltage level translator 5V - 3.3V

[Sanchez]

Hi, I just need a voltage level converter between 5V and 3.3V for the SD memory card. I've seen that sometimes resistive dividers are used, sometimes voltage converter ICs like 4050 or something... Which is better to use, the resistive network or the IC translator?

[Carlos]

You can use both methods, resistive divider or IC voltage level shifter. The IC translators are safer and more professional.