I am starting to research the X2 range, specifically 28 and 40x2's, simply for the number of I/O pins available on them. The question regarding supply voltage will obviously impact on operating speed (MHz) and downstream serial comms maybe (TTL, Max232 etc) ?
I want to look at a "standard" well regulated power supply module, with transient handling etc. to provide a good clean supply rail voltage to the "downstream" consumers (28x2 or 40x2, even the now almost legendary 20x2...).
What would you suggest as the "best" supply voltage, 5V or 3V ? The way I see it, 3V has only higher clock speeds as an advantage. Is higher speed so important (project dependant I know) so that it can outweigh the ease of 5V linking up/down stream ?
As always, your input much appreciated and valued.
EDIT:
Are the X2 modules available yet and at what sypply voltage etc. These seem to have some advantages also...
I want to look at a "standard" well regulated power supply module, with transient handling etc. to provide a good clean supply rail voltage to the "downstream" consumers (28x2 or 40x2, even the now almost legendary 20x2...).
What would you suggest as the "best" supply voltage, 5V or 3V ? The way I see it, 3V has only higher clock speeds as an advantage. Is higher speed so important (project dependant I know) so that it can outweigh the ease of 5V linking up/down stream ?
As always, your input much appreciated and valued.
EDIT:
Are the X2 modules available yet and at what sypply voltage etc. These seem to have some advantages also...
Last edited: