Hi,

Use that:

MAX3370/MAX3371 logic level translators
http://pdfserv.maxim-ic.com/en/ds/MAX3370-MAX3371.pdf

The devices accept VCC from +2.5V to +5.5V
and VL from +1.6V to +5.5V, allowing data transfer
between low-voltage ASICs andhigher voltage devices.

Best regards,

Luciano