[gta02-core] Telit 2.8 V logic

Álvaro Lopes alvieboy at alvie.com
Wed Aug 19 13:58:21 CEST 2009

Werner Almesberger wrote:

> So that would work. The 3.21 uA would come from TX, RTS, and maybe
> DTR. We should have to drive these lines high only when the modem
> is not powered off, so we'd have a total of about 10 uA leakage vs.
> a consumption of 2.4 mA of the idling modem.
> Opinions ?

Personally I prefer using some small level shifters. Like MAX13001E [1] 4x4UCSP (2mm x 2mm), 6 bit wide.

I don't like adding resistor dividers, they will make design more susceptible to EMI interference.

[1] http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4759

> - Werner
> _______________________________________________
> gta02-core mailing list
> gta02-core at lists.openmoko.org
> https://lists.openmoko.org/mailman/listinfo/gta02-core

More information about the gta02-core mailing list