Can I use 3.3 V rail with the TNT4882?

[gregersend]

I want to use the TNT488 with a PXA270 Intel Xscale processor.

My PXA runs of 3.3V for the IO and the Mem. I would prefer to interface without having to use level translators. Is this possible?

Do you have an application note for the interfacing between the two components?

Best regards

Dennis

[Collin M]

You must provide 5V to the TNT4882 VCC pins. 5V is used for the core voltage as well as the IO voltage. If you only supply 3.3V I believe the TNT4882 will stay in reset as it has a built-in voltage monitor.

Have you considered the TNT5002? It is a software compatible with the TNT4882. It uses 3.3V for core and IO voltage.

Each device has a datasheet with detailed timing diagrams. These should give enough information to interface it to your PXA. You can also post/email your schematic if you have any questions/concerns.