If you use one of the 3.3V MAX232 devices from MAXIM, ST, or similar
you
can connect directly to the 3.3V level signals. You need to power
the MAX232
from 3.3V if you don't want the TS-7400 inputs to see a
higher (5V)
voltage.
I've used the Maxim MAX3232E type devices in the
past.
PJE
--- In .com, TuÃrul
GÃÃLÃ <> wrote:
>
> Hi
>
> I have
TS7400 board, datasheet says that GPIO's are 3.3V level.
> Is it possible
to connect the TX and RX of UARTS to another
external max232
circuit.
> Because UARTS pins are also 3.3 V level too I think.
>
> Or do we have to use 3.3v<->5V converter ?
> Thanks..
>
> TuÃrul GÃÃLÃ
>
> Proje MÃhendisi
>
>
YazÃlÃm GeliÃtirme Grubu
>
> e-posta: tugrul.guclu
@savronik.com.tr
>
>
>
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